Ford Escape Manuals
Ford Escape 2020-2024 Service Manual / Electrical / Information and Entertainment Systems / Information and Entertainment System - General Information / Diagnosis and Testing - Information and Entertainment System

Ford Escape: Information and Entertainment System - General Information / Diagnosis and Testing - Information and Entertainment System

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


  Diagnostic Trouble Code Chart


Module   DTC Description Action
  ACM B150C:55 Automobile Audio Bus (A2B) Node 1: Not Configured   GO to Pinpoint Test C
  ACM B150C:87 Automobile Audio Bus (A2B) Node 1: Missing Message   GO to Pinpoint Test C
  ACM B150C:8F Automobile Audio Bus (A2B) Node 1: Erratic   GO to Pinpoint Test C
  ACM B1511:01 Automobile Audio Bus (A2B) Master Node: General Electrical Failure   GO to Pinpoint Test C
  ACM B1511:11 Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground   GO to Pinpoint Test C
  ACM B1511:12 Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery   GO to Pinpoint Test C
  ACM B1511:13 Automobile Audio Bus (A2B) Master Node: Circuit Open   GO to Pinpoint Test C
  ACM B1511:95 Automobile Audio Bus (A2B) Master Node: Incorrect Assembly   GO to Pinpoint Test C
  ACM B1A01:01 Speaker #1: General Electrical Failure   GO to Pinpoint Test E
  ACM B1A01:11 Speaker #1: Circuit Short To Ground   GO to Pinpoint Test E
  ACM B1A01:12 Speaker #1: Circuit Short To Battery   GO to Pinpoint Test E
  ACM B1A01:13 Speaker #1: Circuit Open   GO to Pinpoint Test E
  ACM B1A02:01 Speaker #2: General Electrical Failure   GO to Pinpoint Test E
  ACM B1A02:11 Speaker #2: Circuit Short To Ground   GO to Pinpoint Test E
  ACM B1A02:12 Speaker #2: Circuit Short To Battery   GO to Pinpoint Test E
  ACM B1A02:13 Speaker #2: Circuit Open   GO to Pinpoint Test E
  ACM B1A03:01 Speaker #3: General Electrical Failure   GO to Pinpoint Test E
  ACM B1A03:11 Speaker #3: Circuit Short To Ground   GO to Pinpoint Test E
  ACM B1A03:12 Speaker #3: Circuit Short To Battery   GO to Pinpoint Test E
  ACM B1A03:13 Speaker #3: Circuit Open   GO to Pinpoint Test E
  ACM B1A04:01 Speaker #4: General Electrical Failure   GO to Pinpoint Test E
  ACM B1A04:11 Speaker #4: Circuit Short To Ground   GO to Pinpoint Test E
  ACM B1A04:12 Speaker #4: Circuit Short To Battery   GO to Pinpoint Test E
  ACM B1A04:13 Speaker #4: Circuit Open   GO to Pinpoint Test E
  ACM B1A08:13 Speaker #8: Circuit Open   GO to Pinpoint Test F
  ACM B1A09:13 Speaker #9: Circuit Open   GO to Pinpoint Test F
  ACM B1A10:13 Speaker #10: Circuit Open   GO to Pinpoint Test F
  ACM B1A89:11 Satellite Antenna: Circuit Short To Ground   GO to Pinpoint Test B
  ACM B1A89:13 Satellite Antenna: Circuit Open   GO to Pinpoint Test B
  ACM U0100:00 Lost Communication with ECM/PCM "A": No Sub Type Information   GO to Pinpoint Test W
  ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information   GO to Pinpoint Test X
  ACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information   GO to Pinpoint Test Y
  ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information   GO to Pinpoint Test Z
  ACM U0238:00 Lost Communication With Digital Audio Control Module "D": No Sub Type Information   GO to Pinpoint Test AC
  ACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information   GO to Pinpoint Test AD
  ACM U201A:51 Control Module Main Calibration Data: Not Programmed   GO to Pinpoint Test AH
  ACM U2024:06 Control Module Cal-Config Data: Algorithm Based Failure   GO to Pinpoint Test AH
  ACM U2024:41 Control Module Cal-Config Data: General Checksum Failure   GO to Pinpoint Test AH
  ACM U2024:44 Control Module Cal-Config Data: Data Memory Failure   GO to Pinpoint Test AH
  ACM U2024:51 Control Module Cal-Config Data: Not Programmed   GO to Pinpoint Test AH
  ACM U2100:00 Initial Configuration Not Complete: No Sub Type Information   GO to Pinpoint Test AH
  ACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information   GO to Pinpoint Test AH
  ACM U3000:41 Control Module: General Checksum Failure   GO to Pinpoint Test AI
  ACM U3000:42 Control Module: General Memory Failure   GO to Pinpoint Test AI
  ACM U3000:43 Control Module: Special Memory Failure   GO to Pinpoint Test AI
  ACM U3000:44 Control Module: Data Memory Failure   GO to Pinpoint Test AI
  ACM U3000:45 Control Module: Program Memory Failure   GO to Pinpoint Test AI
  ACM U3000:46 Control Module: Calibration / Parameter Memory Failure   GO to Pinpoint Test AI
  ACM U3000:51 Control Module: Not Programmed   GO to Pinpoint Test AI
  ACM U3000:88 Control Module: Bus off   GO to Pinpoint Test AI
  ACM U3000:92 Control Module: Performance or Incorrect Operation   GO to Pinpoint Test AI
  ACM U3000:94 Control Module: Unexpected Operation   GO to Pinpoint Test AI
  ACM U3000:96 Control Module: Component Internal Failure   GO to Pinpoint Test AI
  ACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold   GO to Pinpoint Test AE
  ACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold   GO to Pinpoint Test AF
  APIM B1087:01 LIN Bus "A": General Electrical Failure   GO to Pinpoint Test H
  APIM B108E:01 Display: General Electrical Failure   GO to Pinpoint Test J
  APIM B108E:01 Display: General Electrical Failure   GO to Pinpoint Test K
  APIM B108E:02 Display: General Signal Failure   GO to Pinpoint Test J
  APIM B108E:02 Display: General Signal Failure   GO to Pinpoint Test K
  APIM B108E:4A Display: Incorrect Component Installed   GO to Pinpoint Test J
  APIM B108E:4A Display: Incorrect Component Installed   GO to Pinpoint Test K
  APIM B108E:4B Display: Over Temperature   GO to Pinpoint Test J
  APIM B108E:4B Display: Over Temperature   GO to Pinpoint Test K
  APIM B108E:63 Display: Circuit / Component Protection Time-Out   GO to Pinpoint Test J
  APIM B108E:87 Display: Missing Message   GO to Pinpoint Test J
  APIM B108E:87 Display: Missing Message   GO to Pinpoint Test K
  APIM B119F:01 GPS Antenna: General Electrical Failure   GO to Pinpoint Test R
  APIM B119F:13 GPS Antenna: Circuit Open   GO to Pinpoint Test R
  APIM B1252:11 USB Port: Circuit Short to Ground   GO to Pinpoint Test N
  APIM B1252:13 USB Port: Circuit Open   GO to Pinpoint Test N
  APIM B14FD:11 External Media Control Connectivity: Circuit Short To Ground   GO to Pinpoint Test N
  APIM B1D79:11 Microphone Input: Circuit Short To Ground   GO to Pinpoint Test M
  APIM B1D79:12 Microphone Input: Circuit Short To Battery   GO to Pinpoint Test M
  APIM B1D79:13 Microphone Input: Circuit Open   GO to Pinpoint Test M
  APIM U0100:00 Lost Communication with ECM/PCM "A": No Sub Type Information   GO to Pinpoint Test W
  APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0159:00 Lost Communication With Parking Assist Control Module "A": No Sub Type Information   GO to Pinpoint Test AK
  APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information   GO to Pinpoint Test J
  APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information   GO to Pinpoint Test K
  APIM U0184:00 Lost Communication With Radio: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0198:00 Lost Communication With Telematic Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0208:00 Lost Communication With "Seat Control Module A": No Sub Type Information   GO to Pinpoint Test AK
  APIM U020C:00 Lost Communication with Wireless Accessory Charging Module "A": No Sub Type Information   GO to Pinpoint Test AK
  APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module - Left: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module - Right: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0238:00 Lost Communication With Digital Audio Control Module "D": No Sub Type Information   GO to Pinpoint Test AK
  APIM U0293:00 Lost Communication With Hybrid/EV Powertrain Control Module: No Sub Type Information   GO to Pinpoint Test AK
  APIM U0415:00 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: No Sub Type Information   GO to Pinpoint Test AL
  APIM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information   GO to Pinpoint Test AL
  APIM U0423:00 Invalid Data Received From Instrument Panel Cluster (IPC) Control Module: No Sub Type Information   GO to Pinpoint Test AL
  APIM U0452:00 Invalid Data Received From Restraints Control Module: No Sub Type Information   GO to Pinpoint Test AL
  APIM U1A00:87 Private Communication Network: Missing Message   GO to Pinpoint Test B
  APIM U2013:01 Switch Pack: General Electrical Failure   GO to Pinpoint Test H
  APIM U2013:16 Switch Pack: Circuit Voltage Below Threshold   GO to Pinpoint Test H
  APIM U2013:17 Switch Pack: Circuit Voltage Above Threshold   GO to Pinpoint Test H
  APIM U2013:63 Switch Pack: Circuit / Component Protection Time-Out   GO to Pinpoint Test H
  APIM U2017:45 Control Module Software #2: Program Memory Failure   GO to Pinpoint Test AM
  APIM U2017:51 Control Module Software #2: Not Programmed   GO to Pinpoint Test AM
  APIM U2017:52 Control Module Software #2: Not Activated   GO to Pinpoint Test AM
  APIM U2017:54 Control Module Software #2: Missing Calibration   GO to Pinpoint Test AM
  APIM U2100:00 Initial Configuration Not Complete: No Sub Type Information   GO to Pinpoint Test AM
  APIM U2101:00 Control Module Configuration Incompatible: No Sub Type Information   GO to Pinpoint Test AM
  APIM U3000:04 Control Module: System Internal Failure   GO to Pinpoint Test AN
  APIM U3000:09 Control Module: Component Failure   GO to Pinpoint Test AN
  APIM U3000:41 Control Module: General Checksum Failure   GO to Pinpoint Test AN
  APIM U3000:88 Control Module: Bus Off   GO to Pinpoint Test AK
  APIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold   GO to Pinpoint Test AE
  APIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold   GO to Pinpoint Test AF
  DSP B13FB:11 Audio Enable Line: Circuit Short To Ground   GO to Pinpoint Test C
  DSP B1A01:01 Speaker #1: General Electrical Failure   GO to Pinpoint Test G
  DSP B1A01:11 Speaker #1: Circuit Short To Ground   GO to Pinpoint Test G
  DSP B1A01:12 Speaker #1: Circuit Short To Battery   GO to Pinpoint Test G
  DSP B1A01:13 Speaker #1: Circuit Open   GO to Pinpoint Test G
  DSP B1A03:01 Speaker #3: General Electrical Failure   GO to Pinpoint Test G
  DSP B1A03:11 Speaker #3: Circuit Short To Ground   GO to Pinpoint Test G
  DSP B1A03:12 Speaker #3: Circuit Short To Battery   GO to Pinpoint Test G
  DSP B1A03:13 Speaker #3: Circuit Open   GO to Pinpoint Test G
  DSP B1A04:01 Speaker #4: General Electrical Failure   GO to Pinpoint Test G
  DSP B1A04:11 Speaker #4: Circuit Short To Ground   GO to Pinpoint Test G
  DSP B1A04:12 Speaker #4: Circuit Short To Battery   GO to Pinpoint Test G
  DSP B1A04:13 Speaker #4: Circuit Open   GO to Pinpoint Test G
  DSP B1A05:01 Speaker #5: General Electrical Failure   GO to Pinpoint Test G
  DSP B1A05:11 Speaker #5: Circuit Short To Ground   GO to Pinpoint Test G
  DSP B1A05:12 Speaker #5: Circuit Short To Battery   GO to Pinpoint Test G
  DSP B1A05:13 Speaker #5: Circuit Open   GO to Pinpoint Test G
  DSP B1A06:01 Speaker #6: General Electrical Failure   GO to Pinpoint Test G
  DSP B1A06:11 Speaker #6: Circuit Short To Ground   GO to Pinpoint Test G
  DSP B1A06:12 Speaker #6: Circuit Short To Battery   GO to Pinpoint Test G
  DSP B1A06:13 Speaker #6: Circuit Open   GO to Pinpoint Test G
  DSP U0140:00 Lost Communication With Body Control Module: No Sub Type Information   GO to Pinpoint Test Y
  DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information   GO to Pinpoint Test Z
  DSP U0184:00 Lost Communication With Radio: No Sub Type Information   GO to Pinpoint Test AA
  DSP U0198:00 Lost Communication With Telematic Control Module: No Sub Type Information   GO to Pinpoint Test AB
  DSP U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information   GO to Pinpoint Test AD
  DSP U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information   GO to Pinpoint Test AG
  DSP U201A:51 Control Module Main Calibration Data: Not Programmed   GO to Pinpoint Test AH
  DSP U2024:41 Control Module Cal-Config Data: General Checksum Failure   GO to Pinpoint Test AH
  DSP U2024:48 Control Module Cal-Config Data: Supervision Software   GO to Pinpoint Test AH
  DSP U2024:51 Control Module Cal-Config Data: Not Programmed   GO to Pinpoint Test AH
  DSP U2100:00 Initial Configuration Not Complete: No Sub Type Information   GO to Pinpoint Test AH
  DSP U2101:00 Control Module Configuration Incompatible: No Sub Type Information   GO to Pinpoint Test AH
  DSP U3000:41 Control Module: General Checksum Failure   GO to Pinpoint Test AI
  DSP U3000:42 Control Module: General Memory Failure   GO to Pinpoint Test AI
  DSP U3003:16 Battery Voltage: Circuit Voltage Below Threshold   GO to Pinpoint Test AE
  DSP U3003:17 Battery Voltage: Circuit Voltage Above Threshold   GO to Pinpoint Test AF
  SCCM B137F:11 Steering Wheel Left Switch Pack: Circuit Short To Ground   GO to Pinpoint Test I
  SCCM B137F:13 Steering Wheel Left Switch Pack: Circuit Open   GO to Pinpoint Test I
  SCCM B137F:96 Steering Wheel Left Switch Pack: Component Internal Failure   GO to Pinpoint Test I
  SCCM B137F:9E Steering Wheel Left Switch Pack: Stuck On   GO to Pinpoint Test I
  SCCM B1380:11 Steering Wheel Right Switch Pack: Circuit Short To Ground   GO to Pinpoint Test I
  SCCM B1380:13 Steering Wheel Right Switch Pack: Circuit Open   GO to Pinpoint Test I
  SCCM B1380:96 Steering Wheel Right Switch Pack: Component Internal Failure   GO to Pinpoint Test I
  SCCM B1380:9E Steering Wheel Right Switch Pack: Stuck On   GO to Pinpoint Test I
  TCU B1246:11 GSM (Group System for Mobile) Antenna: Circuit Short To Ground   GO to Pinpoint Test S
  TCU B1246:13 GSM (Group System for Mobile) Antenna: Circuit Open   GO to Pinpoint Test S
  TCU B156D:55 TCU Customer Connectivity Settings Synchronization With HMI: Not Configured   GO to Pinpoint Test AH
  TCU B156D:89 TCU Customer Connectivity Settings Synchronization With HMI: ISO/SAE Reserved   GO to Pinpoint Test AH
  TCU B1D55:11 Antenna #2: Circuit Short To Ground   GO to Pinpoint Test T
  TCU B1D55:13 Antenna #2: Circuit Open   GO to Pinpoint Test T
  TCU U0100:00 Lost Communication with ECM/PCM "A": No Sub Type Information   GO to Pinpoint Test W
  TCU U0140:00 Lost Communication With Body Control Module: No Sub Type Information   GO to Pinpoint Test Y
  TCU U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information   GO to Pinpoint Test AD
  TCU U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information   GO to Pinpoint Test AG
  TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information   GO to Pinpoint Test AG
  TCU U2024:00 Control Module Cal-Config Data: No Sub Type Information   GO to Pinpoint Test AH
  TCU U2100:00 Initial Configuration Not Complete: No Sub Type Information   GO to Pinpoint Test AH
  TCU U2101:00 Control Module Configuration Incompatible: No Sub Type Information   GO to Pinpoint Test AH
  TCU U3000:04 Control Module: System Internal Failure   GO to Pinpoint Test AJ
  TCU U3000:09 Control Module: Component Failure   GO to Pinpoint Test AJ
  TCU U3000:41 Control Module: General Checksum Failure   GO to Pinpoint Test AI
  TCU U3000:42 Control Module: General Memory Failure   GO to Pinpoint Test AI
  TCU U3000:52 Control Module: Not Activated   GO to Pinpoint Test AJ
  TCU U3000:56 Control Module: Invalid / Incompatible Configuration   GO to Pinpoint Test AI
  TCU U3003:16 Battery Voltage: Circuit Voltage Below Threshold   GO to Pinpoint Test AE
  TCU U3003:17 Battery Voltage: Circuit Voltage Above Threshold   GO to Pinpoint Test AF

Symptom Charts

Symptom Chart: Radio

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
A module does not respond to the diagnostic scan tool  
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The AM radio is inoperative   GO to Pinpoint Test A
The FM radio is inoperative   GO to Pinpoint Test A
Poor AM reception   GO to Pinpoint Test A
Poor FM reception   GO to Pinpoint Test A
Continuous seek or scan in AM / FM mode   GO to Pinpoint Test A
Poor satellite radio reception   GO to Pinpoint Test B
Poor sound quality or no sound while in satellite radio mode - all other functions operate correctly   GO to Pinpoint Test B
The satellite radio is inoperative or does not operate correctly   GO to Pinpoint Test B
The audio system does not operate correctly from the radio control panel   GO to Pinpoint Test H
One or more audio steering wheel control button is inoperative   GO to Pinpoint Test I
Unable to change the audio source   GO to Pinpoint Test C
Audio System Off displays at regular intervals   GO to Pinpoint Test C

Symptom Chart: Speakers and Sound Quality - 6 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
No sound from all speakers   GO to Pinpoint Test C
The left speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test L
The right speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test L
Poor sound quality or distorted sound from one or more speakers (not all speakers)   GO to Pinpoint Test D
The instrument panel left speaker is inoperative   GO to Pinpoint Test E
The instrument panel right speaker is inoperative   GO to Pinpoint Test E
The left front door woofer speaker is inoperative   GO to Pinpoint Test E
The right front woofer door speaker is inoperative   GO to Pinpoint Test E
The left rear door woofer speaker is inoperative   GO to Pinpoint Test E
The right rear door woofer speaker is inoperative   GO to Pinpoint Test E

Symptom Chart: Speakers and Sound Quality - 10 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
No sound from all speakers   GO to Pinpoint Test C
The left speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test L
The right speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test L
Poor sound quality or distorted sound from one or more speakers (not all speakers)   GO to Pinpoint Test D
The instrument panel center speaker is inoperative   GO to Pinpoint Test F
The instrument panel left speaker is inoperative   GO to Pinpoint Test F
The instrument panel right speaker is inoperative   GO to Pinpoint Test F
The left front door woofer speaker is inoperative   GO to Pinpoint Test G
The right front door woofer speaker is inoperative   GO to Pinpoint Test G
The left rear door tweeter speaker is inoperative   GO to Pinpoint Test G
The right rear door tweeter speaker is inoperative   GO to Pinpoint Test G
The left rear door woofer speaker is inoperative   GO to Pinpoint Test G
The right rear door woofer speaker is inoperative   GO to Pinpoint Test G
The subwoofer speaker is inoperative   GO to Pinpoint Test G

Symptom Chart: Display Unit - Non-Touchscreen

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The display unit is blank or black   GO to Pinpoint Test J
One or more button on the display unit is inoperative   GO to Pinpoint Test J
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear   GO to Pinpoint Test J
The image on the display unit is locked or frozen   GO to Pinpoint Test J

Symptom Chart: Display Unit - Touchscreen

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The display unit is blank or black   GO to Pinpoint Test K
The display unit is not responsive to touch   GO to Pinpoint Test K
The display unit is slow to respond to touch   GO to Pinpoint Test K
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear   GO to Pinpoint Test K
The image on the display unit is locked or frozen   GO to Pinpoint Test K

Symptom Chart: SYNC Features/Media/Phone

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The SYNC system does not operate correctly from the radio control panel   GO to Pinpoint Test H
One or more steering wheel SYNC control button is inoperative   GO to Pinpoint Test I
The left speakers are inoperative when using Bluetooth and media hub SYNC features   GO to Pinpoint Test L
The right speakers are inoperative when using Bluetooth and media hub SYNC features   GO to Pinpoint Test L
The SYNC system audible prompts are inoperative or do not operate correctly   GO to Pinpoint Test L
During a phone call, no incoming audio is heard in the vehicle   GO to Pinpoint Test L
Poor sound quality, distorted, or no sound while in SYNC mode   GO to Pinpoint Test L
Voice commands are inoperative or outgoing audio is not transmitted during a phone call   GO to Pinpoint Test M
An individual Bluetooth device or feature is inoperative   GO to Pinpoint Test P
Unable to pair Bluetooth device or the Bluetooth functionality is inoperative   GO to Pinpoint Test O
A USB device is not recognized by the SYNC system or audio files on a USB device are not found using the SYNC system from one or both USB ports   GO to Pinpoint Test N
The 911 Assist or Emergency Assistance Not Operational message displays   GO to Pinpoint Test Q
SYNC AppLink is inoperative or does not operate correctly   GO to Pinpoint Test U
SYNC Connect is inoperative or does not operate correctly   GO to Pinpoint Test S
Android Auto™ or Apple CarPlay™ is inoperative   GO to Pinpoint Test V
The vehicle Wi-Fi hotspot feature is inoperative, experiencing poor data speed or cannot stream any data   GO to Pinpoint Test T

Symptom Chart: Navigation/Compass

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The compass is inoperative or does not operate correctly   GO to Pinpoint Test R
Navigation is inoperative or does not operate correctly   GO to Pinpoint Test R
SIRIUS Travel Link™ or digital radio data link is inoperative   GO to Pinpoint Test B

Pinpoint Tests


PINPOINT TEST A: POOR AM (AMPLITUDE MODULATION) - FM (FREQUENCY MODULATION) RECEPTION

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Audio Unit Coaxial Cable Connections

NOTE: The vehicle may not be equipped with all the connections shown.


Item Part Number Description
1 — AM/FM1 antenna connection
2 — FM2 diversity antenna connection
3 — Satellite radio connection

Possible Sources

  • Wiring, terminals, or connectors
  • Ignition system
  • Noise suppression equipment
  • Generator
  • Antenna cable
  • Antenna amplifier
  • On-glass antenna grid
  • ACM

Visual Inspection and Pre-checks

  • Inspect the on-glass antenna grid for damage.

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

NOTE: The AM / FM 1 antenna cable is also known as the audio unit antenna cable.

A1 CHECK THE AUDIO SYSTEM RECEPTION WITH THE REAR WINDOW DEFROST ACTIVATED
  • Ignition OFF.
  • Operate the audio system in AM / FM mode.
  • Observe the radio reception.
  • NOTE: Non-hybrid vehicles require the engine is running for the rear window defrost to activate. Hybrid vehicles require the vehicle to be in "Ready to Run" mode. Activate the rear window defrost function and observe the radio reception.

Does the poor reception only occur with the rear window defrost activated?
Yes For non-hybrid vehicles, GO to A2
For hybrid vehicles, GO to A3
No GO to A6

A2 CHECK THE AUDIO SYSTEM RECEPTION WITH THE ENGINE RUNNING AND THE REAR DEFROST FUNCTION DEACTIVATED
  • Start the engine.
  • NOTE: Make sure the rear window defrost function is not activated. Operate the audio system in AM / FM mode.

Does the poor reception occur with the rear window defrost function deactivated?
Yes GO to A4
No GO to A3

A3 CHECK THE REAR WINDOW DEFROST GRID FOR CORRECT OPERATION
  • Check the operation of the rear window defrost grid. Make sure all of the grid lines are operating correctly.

Does the rear window defrost grid operate correctly?
Yes INSTALL a new noise suppression filter at the rear window defrost grid connection.
REFER to: Antenna Isolator Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No
REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open and Close Front Windows (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).
REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open Driver Window (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

A4 CHECK THE GENERATOR
  • Ignition OFF.
  • Disconnect the generator "B" connector .
  • NOTE: Do not increase the engine RPM above idle speed. Start the engine.
  • NOTE: Do not increase the RPM above idle speed. Incorrect test results may occur if the engine speed is increased above idle. With the engine at idle only, operate the audio system in AM / FM mode.

Is the reception OK?
Yes INSTALL a new generator. REFER to the appropriate Removal and Installation procedure in section 414-02.
No GO to A5

A5 CHECK THE IGNITION CIRCUITS
  • Ignition OFF.
  • Connect the generator "A" connector.
  • Inspect the engine compartment and make sure all ignition coils are correctly and securely connected, and no cracks are visible in the coil housings.
  • Inspect all the wiring harnesses and connectors for damaged insulation and loose or broken conditions.

Are the ignition components OK?
Yes USE a jumper cable to ground various parts of the vehicle to the frame (for example: engine, fenders, quarter panels, stone deflectors, air cleaner, and body sheet metal). When the noise is eliminated, PROVIDE a permanent ground where necessary.
No REPAIR the ignition system as necessary.

A6 INSPECT THE ANTENNA ON-GLASS GRID
  • Ignition OFF.
  • Inspect the connection to the antenna amplifier and the antenna on-glass grid for damage.

Is the connection to the antenna amplifier OK and the on-glass antenna grid free from damage?
Yes GO to A7
No REPAIR the connection to the antenna amplifier or the window grid as necessary.

A7 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) ANTENNA VOLTAGE OUTPUT
  • Ignition OFF.
  • Disconnect the AM / FM 1 antenna cable from the ACM .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the ACM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:

      AM / FM 1 Antenna Cable


    Positive Lead Measurement / Action Negative Lead
    AM / FM 1 antenna cable core at the ACM (component side)   Ground

Is the voltage greater than 11 volts?
Yes GO to A8
No GO to A10

A8 CHECK FOR VOLTAGE TO THE ANTENNA AMPLIFIERS
  • Ignition OFF.
  • Connect the AM / FM 1 antenna cable to the ACM .
  • Disconnect the antenna cable from the AM / FM 1 antenna amplifier.
  • Ignition ON.
  • Measure:

      AM / FM 1 Antenna Cable


    Positive Lead Measurement / Action Negative Lead
    antenna cable core at the AM / FM 1 antenna amplifier   Ground

Is the voltage greater than 11 volts?
Yes GO to A9
No IDENTIFY the antenna cable with the open or short condition. INSTALL a new cable in question.
REFER to: Audio Unit Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

A9 ISOLATE THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) 1 ANTENNA AMPLIFIER
  • Ignition OFF.
  • Connect the antenna cable to the FM 2 diversity antenna amplifier (if equipped).
  • Install a new AM / FM 1 antenna amplifier.
    REFER to: AM/FM1 Antenna Amplifier (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Operate the audio system in AM / FM mode.

Is the reception OK?
Yes The system is operating correctly. The concern was caused by the antenna amplifier.
No GO to A10

A10 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B: SATELLITE RADIO/SIRIUS TRAVEL LINK ™/DIGITAL RADIO DATA LINK CONCERN

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

When a satellite radio subscription is active, the ESN of the satellite radio receiver built into the ACM associates with the VIN .

Audio Unit Coaxial Cable Connections

NOTE: The vehicle may not be equipped with all the connections shown.


Item Part Number Description
1 — AM/FM1 antenna connection
2 — FM2 diversity antenna connection
3 — Satellite radio connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A89:11 Satellite Antenna: Circuit Short To Ground Sets in continuous memory or during the on-demand self-test when the ACM detects a short to ground from the satellite radio cable.
ACM B1A89:13 Satellite Antenna: Circuit Open Sets in continuous memory or during the on-demand self-test when the ACM detects an open from the satellite radio cable.
APIM U1A00:87 Private Communication Network: Missing Message Sets during the on-demand self-test when the APIM does not receive a valid response from the ACM over the SDL circuits.

Possible Sources

  • Expired subscription
  • Compass concern
  • Obstructions in the antenna line of sight
  • Incorrectly matched ESN
  • Wiring, terminals, or connectors
  • Lower satellite radio antenna cable (includes GPS splitter)
  • Satellite radio antenna
  • ACM
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

B1 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U1A00:87
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U1A00:87 present?
Yes GO to B15
No For vehicles equipped with a satellite radio, GO to B2
For vehicles not equipped with a satellite radio, GO to B13

B2 CHECK FOR PROMOTIONAL CHANNEL 184
  • Select channel 184.

Does the satellite radio system receive channel 184 with normal sound quality?
Yes GO to B3
No GO to B9

B3 VERIFY AN ACTIVE SUBSCRIPTION
  • For a Sirius Radio concern, operate the audio system in satellite radio mode and observe the display.
  • For a Sirius Travel Link™ concern, access the "Subscription Info" selection in the SIRIUS Travel Link™ menu.

Does the display indicate the subscription has expired?
Yes GO to B4
No For a satellite radio concern, GO to B6
For a SIRIUS Travel Link™ concern, GO to B7

B4 CHECK THE VEHICLE SERVICE HISTORY FOR ACM (AUDIO FRONT CONTROL MODULE) REPLACEMENT
  • Check the vehicle service history and determine if the ACM was replaced.

Does the vehicle service history indicate the ACM was recently replaced?
Yes GO to B5
No The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.

B5 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the customer file match the VIN and the ESN retrieved from the vehicle.

Does the VIN and the ESN on the SIRIUS customer file match the ESN and VIN retrieved from the vehicle?
Yes The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.
No INSTRUCT the vehicle owner to contact SIRIUS to update the VIN and the ESN retrieved from the vehicle.

B6 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the file match the VIN and the ESN retrieved from the vehicle.
  • Drive the vehicle to an open location free from obstacles such as tall buildings or large trees.
  • Operate the audio system in satellite radio mode.
  • NOTE: It may take up to 30 minutes for the activation signal to be received and satellite radio functions to operate. Request for SIRIUS to send the activation signal to the vehicle 2-3 times.
  • Operate multiple channels with the audio system in satellite radio mode.

Does the satellite radio system receive multiple channels with normal sound quality?
Yes The system is operating correctly. The concern may have been caused by the SIRIUS file information not matching the vehicle or a result of the activation signal needing to be resent.
No GO to B11

B7 SEND THE SIRIUS ACTIVATION SIGNAL AND RECHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION
  • Refer to the SIRIUS website and input the ESN to send the activation signal to the vehicle.
  • Wait 15 minutes.
  • NOTE: If the SIRIUS Travel Link™ features have not updated, input the ESN again to re-send/refresh the signal. Operate various SIRIUS Travel Link™ features and observe their functionality.

Does the SIRIUS Travel Link™ operate correctly?
Yes The system is operating correctly at this time.
No GO to B8

B8 ALLOW THE CATEGORIES TO UPDATE AND THEN CHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION

NOTE: The frequency of category updates varies and depends on the category and the SIRIUS infrastructure data load.

  • Drive the vehicle to an outdoor location that is free from obstacles such as tall buildings and large trees.
  • Operate various SIRIUS Travel Link™ features and observe their functionality.

Does SIRIUS Travel Link™ operate correctly?
Yes The system is operating correctly at this time. The concern was a result of obstructions in the antenna line of sight.
No GO to B11

B9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable from the ACM .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the ACM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite cable core (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B10
No GO to B19

B10 CHECK FOR VOLTAGE TO THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable to the ACM .
  • Disconnect the satellite radio antenna cable from the GPS /satellite antenna.
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite radio/GPS antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B11
No IDENTIFY the cable with the open or short. INSTALL a new GPS cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

B11 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE
  • Connect the satellite radio antenna cable from the GPS /satellite antenna.
  • INSTALL a new satellite radio/GPS antenna splitter cable.
    REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.

Does the system in question operate correctly?
Yes The system is operating correctly. The concern was caused by the original satellite radio/GPS antenna splitter cable.
No GO to B12

B12 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the GPS /satellite radio antenna.
    REFER to: Satellite Radio / Global Positioning System (GPS) Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Inspect for corrosion on the antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?
Yes GO to B14
No REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

B13 VERIFY THE COMPASS OPERATES CORRECTLY
  • Ignition ON.
  • Check the operation of the compass and make sure it operates correctly.

Does the compass operate correctly?
Yes GO to B14
No GO to Pinpoint Test R

B14 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • INSTALL a new GPS /satellite radio antenna.
    REFER to: Satellite Radio / Global Positioning System (GPS) Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.

Does the system in question operate correctly?
Yes The system is operating correctly. The concern was caused by the original satellite radio/GPS antenna.
No GO to B15

B15 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect APIM C2383A .
  • Disconnect ACM C240A and C240B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to B16
No REPAIR the circuit in question.

B16 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to B17

B17 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TOGETHER
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C2383A-28
      C2383A-51   C2383A-52

Is the resistance greater than 10,000 ohms?
Yes GO to B18
No REPAIR the circuits.

B18 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      ACM C240A


    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C240A-14
      C2383A-28   C240A-25

    Click to display connectors

      ACM C240B


    Positive Lead Measurement / Action Negative Lead
      C2383A-51   C240B-18
      C2383A-52   C240B-29

Are the resistances less than 3 ohms?
Yes GO to B19
No REPAIR the circuit in question.

B19 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition ON.
  • Disconnect and inspect all ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to B20
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B20 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C: NO SOUND FROM ALL SPEAKERS

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

A short to ground or voltage in the circuitry to one of the speakers may cause multiple speakers to lose sound due to the built-in overload protection feature of the ACM . In this case, a speaker fault DTC sets.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B150C:55 Automobile Audio Bus (A2B) Node 1: Not Configured Sets in continuous memory when the ACM detects a fault attempting to configure the audio DSP module as Slave 1.
ACM B150C:87 Automobile Audio Bus (A2B) Node 1: Missing Message Sets in continuous memory and during the self-test when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B150C:8F Automobile Audio Bus (A2B) Node 1: Erratic Sets in continuous memory when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B1511:01 Automobile Audio Bus (A2B) Master Node: General Electrical Failure Sets in continuous memory and during the self-test when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B1511:11 Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground Sets in continuous memory and during the self-test when the ACM detects a short to ground from the Automobile Audio Bus (A2B).
ACM B1511:12 Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery Sets in continuous memory and during the self-test when the ACM detects a short to voltage from the Automobile Audio Bus (A2B).
ACM B1511:13 Automobile Audio Bus (A2B) Master Node: Circuit Open Sets in continuous memory and during the self-test when the ACM detects an open from the Automobile Audio Bus (A2B) cable.
ACM B1511:95 Automobile Audio Bus (A2B) Master Node: Incorrect Assembly Sets in continuous memory and during the self-test when the ACM detects the A2B cable circuitry is reversed.
DSP B13FB:11 Audio Enable Line: Circuit Short To Ground Sets in continuous memory when the DSP does not detect the correct voltage signal from the enable circuit 5 seconds after receiving the ignition mode RUN message from the BCM .

Possible Sources

  • Network communication concern
  • Wiring, terminals, or connectors
  • Automobile Audio Bus (A2B) cable
  • Module configuration
  • DSP
  • ACM
C1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to C2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

C2 VERIFY THE APIM (SYNC MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the APIM pass the network test?
Yes If equipped with the 6 speaker system, GO to C4
If equipped with the 10 speaker system, GO to C3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

C3 VERIFY THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the DSP pass the network test?
Yes GO to C4
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

C4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to C5

C5 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For any Automobile Audio Bus (A2B) DTC , GO to C13
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No If equipped with the 6 speaker system, GO to C16
If equipped with the 10 speaker system, GO to C6

C6 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes GO to Pinpoint Test G
No GO to C7

C7 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR CORRECT VOLTAGE
  • Ignition OFF.
  • Disconnect DSP C3145B .
  • Ignition ON.
  • Turn the audio system on.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3145B-3   Ground

Is the voltage between 3.5 and 7 volts?
Yes GO to C12
No GO to C8

C8 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C240B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3145B-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C9
No REPAIR the circuit.

C9 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3145B-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to C10

C10 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3145B-3   C240B-23

Is the resistance less than 3 ohms?
Yes GO to C11
No REPAIR the circuit.

C11 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) CONFIGURATION
  • Connect DSP C3145B .
  • Connect ACM C240B .
  • Ignition ON.
  • Carry out the PMI \ programming for the ACM using as-built data.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to C16

C12 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONFIGURATION
  • Ignition OFF.
  • Connect DSP C3145B .
  • Ignition ON.
  • Carry out the PMI programming for the DSP using as-built data.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to C13

C13 CHECK THE FRONT AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new front Automobile Audio Bus (A2B) cable.
    REFER to: Automotive Audio Bus (AAB) Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The repair is complete. The cause was caused by the front Automobile Audio Bus (A2B) cable.
No GO to C14

C14 CHECK THE REAR AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new rear Automobile Audio Bus (A2B) cable.
    REFER to: Automotive Audio Bus (AAB) Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The repair is complete. The cause was caused by the rear Automobile Audio Bus (A2B) cable.
No GO to C15

C15 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to C16
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C16 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: POOR SOUND QUALITY OR DISTORTED SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS)

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Audio signals are sent to the speakers in the form of AC voltage, resulting in clear audio output.

Possible Sources

  • Loose component fasteners
  • Loose door handle, lock or other trim panel components and fasteners
  • Loose items in storage areas
  • Loose speaker grilles
  • Loose wire harnesses or wire harness fasteners
  • Speaker
  • Trim panel
  • Water shield bonding and placement

Visual Inspection and Pre-checks

  • Any map pockets and storage compartments (including cup holders) for contents that can rattle (if equipped)
  • Door pull cup attachments for correct fit (if equipped)
  • Door switch bezels for correct fit (if equipped)
  • Speaker grilles for correct fit
  • Trim panels for correct fit
D1 ISOLATE THE ZONE
  • Download all the diagnostic sound tracks to a suitable USB flash drive and connect it to the media hub.
    REFER to: Speaker Audio Test (415-00 Information and Entertainment System - General Information, General Procedures).
  • Operate the audio system in USB mode using the downloaded audio files.
  • Using the audio system fade and balance settings, adjust the audio sound to each of the zones and use the 6 diagnostic sound tracks to isolate the poor sound quality.
  • Locate and apply pressure to the trim panel(s) around the poor sound quality area in question.

Does applying pressure to a trim panel reduce or eliminate the noise?
Yes REPAIR or REPLACE the trim panel as needed.
No GO to D2

D2 REMOVE AND INSPECT BEHIND/UNDERNEATH THE SUSPECT TRIM PANEL
  • Remove the trim panel to access the suspect speaker.
  • Operate the audio system in USB mode using the downloaded audio files.
  • Validate where the poor sound quality area is located.
  • Check:
    • Trim panel for loose components (speaker grille for example) around the speaker area.
    • Trim panel joining components for missing or broken pieces.
    • Door latch mechanical parts for correct attachment.
    • Wire harnesses for correct routing and attachment.
    • Water shield for correct placement (speaker air path not blocked).
    • Water shield for correct bonding to sheet metal.
    • Storage areas for loose items.
    • All safety belt retractors.
    • All speaker bracket and related fasteners. Make sure they are secure and tightened to specified torque.

Is the source of the noise located?
Yes REPAIR or REPLACE any loose or broken component or fastener as necessary.
No GO to D3

D3 CHECK THE SUSPECT SPEAKER FOR WATER INTRUSION
  • Inspect for watermarks.
  • Check the following speaker components:
    • Cone
    • Magnet
    • Basket

Are any watermarks present on the speaker?
Yes VERIFY the water shield is in the correct location, REPAIR or REPLACE any trim, door or speaker seal as required. DRY the speaker in question. TEST the system for normal operation.
No GO to D4

D4 ISOLATE THE SUSPECT SPEAKER TO VERIFY NOISE
  • Remove the suspect speaker from its location and leave the speaker connected to the harness.
  • Hold the speaker away from any trim panel and make sure the speaker is isolated from contact.
  • Operate the audio system in USB mode using the downloaded audio files.

Is the noise still present in the suspect speaker?
Yes INSTALL a new speaker for the one in question.
No LOCATE the source of the noise and REPAIR as necessary.

PINPOINT TEST E: ONE OR MORE SPEAKER IS INOPERATIVE - ACM (AUDIO FRONT CONTROL MODULE) CONTROLLED - 6 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A01:01 Speaker #1: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left front door woofer or instrument panel left (if equipped) speaker circuits.
ACM B1A01:11 Speaker #1: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left front door woofer or instrument panel left (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:12 Speaker #1: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front door woofer or instrument panel left (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:13 Speaker #1: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left front door woofer or instrument panel left (if equipped) speaker circuits.
ACM B1A02:01 Speaker #2: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right front door woofer or instrument panel right (if equipped) speaker circuits.
ACM B1A02:11 Speaker #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right front door woofer or instrument panel right (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:12 Speaker #2: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front door woofer or instrument panel right (if equipped) speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:13 Speaker #2: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right front door woofer or instrument panel right (if equipped) speaker circuits.
ACM B1A03:01 Speaker #3: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the right rear door woofer speaker circuits.
ACM B1A03:11 Speaker #3: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:12 Speaker #3: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:13 Speaker #3: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the right rear door woofer speaker circuits.
ACM B1A04:01 Speaker #4: General Electrical Failure Sets during the on-demand self-test when the ACM detects a failure from the left rear door woofer speaker circuits.
ACM B1A04:11 Speaker #4: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:12 Speaker #4: Circuit Short To Battery Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left rear door woofer speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:13 Speaker #4: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the left rear door woofer speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • ACM

NOTE: On vehicles equipped with instrument panel speakers, the door speaker and corresponding instrument panel speaker share the same circuitry. If a concern exists with both speakers, retest the system with the instrument panel speaker disconnected to determine if the instrument panel speaker is the cause of the concern.

E1 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect ACM C240A .
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   Ground
      C231-3   Ground

    Click to display connectors

      Instrument Panel Right Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   Ground
      C230-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to E2
No REPAIR the circuit in question.

E2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   Ground
      C231-3   Ground

    Click to display connectors

      Instrument Panel Right Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   Ground
      C230-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to E3

E3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

NOTE: For a suspect instrument panel or front door speaker, make sure the corresponding instrument panel speaker or the corresponding front door speaker in question are both disconnected.

  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C231-3

    Click to display connectors

      Instrument Panel Right Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C230-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

Are the resistances greater than 10,000 ohms?
Yes GO to E4
No REPAIR the circuits.

E4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C240A-8
      C231-3   C240A-7

    Click to display connectors

      Instrument Panel Right Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C240A-3
      C230-3   C240A-2

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C240A-8
      C536-4   C240A-7

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C240A-3
      C642-4   C240A-2

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C240A-6
      C736-4   C240A-5

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C240A-10
      C802-4   C240A-9

Are the resistances less than 3 ohms?
Yes GO to E5
No REPAIR the circuit in question.

E5 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER
  • Connect ACM C240A .
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C231-3

    Click to display connectors

      Instrument Panel Right Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C230-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to E6

E6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F: ONE OR MORE SPEAKER IS INOPERATIVE - ACM (AUDIO FRONT CONTROL MODULE) CONTROLLED - 10 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A08:13 Speaker #8: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the instrument panel center speaker circuits.
ACM B1A09:13 Speaker #9: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the instrument panel right speaker circuits.
ACM B1A10:13 Speaker #10: Circuit Open Sets during the on-demand self-test when the ACM detects an open from the instrument panel left speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • ACM
F1 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect ACM C240A .
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   Ground
      C2356-2   Ground

    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   Ground
      C231-3   Ground

    Click to display connectors

      Instrument Panel Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   Ground
      C230-3   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to F2
No REPAIR the circuits.

F2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   Ground
      C2356-2   Ground

    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   Ground
      C231-3   Ground

    Click to display connectors

      Instrument Panel Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   Ground
      C230-3   Ground

Is any voltage present?
Yes REPAIR the circuits.
No GO to F3

F3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C2356-2

    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C231-3

    Click to display connectors

      Instrument Panel Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C230-3

Are the resistances greater than 10,000 ohms?
Yes GO to F4
No REPAIR the circuits.

F4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C240A-3
      C2356-2   C240A-2

    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C240A-6
      C231-3   C240A-5

    Click to display connectors

      Instrument Panel Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C240A-10
      C230-3   C240A-9

Are the resistances less than 3 ohms?
Yes GO to F5
No REPAIR the circuit in question.

F5 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER
  • Connect ACM C240A .
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2356-1   C2356-2

    Click to display connectors

      Instrument Panel Left Speaker


    Positive Lead Measurement / Action Negative Lead
      C231-1   C231-3

    Click to display connectors

      Instrument Panel Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C230-1   C230-3

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to F6

F6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED SPEAKERS

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP B1A01:01 Speaker #1: General Electrical Failure Sets during the on-demand self-test when the DSP detects the left rear door woofer and tweeter speaker circuits are shorted together.
DSP B1A01:11 Speaker #1: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the left rear door woofer and tweeter speaker circuits.
DSP B1A01:12 Speaker #1: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the left rear door woofer and tweeter speaker circuits.
DSP B1A01:13 Speaker #1: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the left rear door woofer and tweeter speaker circuits.
DSP B1A03:01 Speaker #3: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right rear door woofer and tweeter circuits are shorted together.
DSP B1A03:11 Speaker #3: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right rear door woofer and tweeter speaker circuits.
DSP B1A03:12 Speaker #3: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right rear door woofer and tweeter speaker circuits.
DSP B1A03:13 Speaker #3: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right rear door woofer and tweeter speaker circuits.
DSP B1A04:01 Speaker #4: General Electrical Failure Sets during the on-demand self-test when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A04:11 Speaker #4: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A04:12 Speaker #4: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A04:13 Speaker #4: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A05:01 Speaker #5: General Electrical Failure Sets during the on-demand self-test when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A05:11 Speaker #5: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A05:12 Speaker #5: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A05:13 Speaker #5: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A06:01 Speaker #6: General Electrical Failure Sets during the on-demand self-test when the DSP detects the subwoofer speaker circuits are shorted together.
DSP B1A06:11 Speaker #6: Circuit Short To Ground Sets during the on-demand self-test when the DSP detects a short to ground from the subwoofer speaker circuits.
DSP B1A06:12 Speaker #6: Circuit Short To Battery Sets during the on-demand self-test when the DSP detects a short to voltage from the subwoofer speaker circuits.
DSP B1A06:13 Speaker #6: Circuit Open Sets during the on-demand self-test when the DSP detects an open from the subwoofer speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • DSP

NOTE: The rear door speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.

G1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to G2

G2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected.

  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect DSP C3154A .
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C730-1   Ground
      C730-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   Ground
      C804-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G3
No REPAIR the circuit in question.

G3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C730-1   Ground
      C730-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   Ground
      C804-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   Ground
      C736-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to G4

G4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C730-1   C730-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C804-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2

Are the resistances greater than 10,000 ohms?
Yes GO to G5
No REPAIR the circuits.

G5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C3154A-17
      C536-4   C3154A-7

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C3154A-16
      C642-4   C3154A-6

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C730-1   C3154A-20
      C730-3   C3154A-10

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C3154A-18
      C804-3   C3154A-8

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C3154A-20
      C736-4   C3154A-10

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C3154A-18
      C802-4   C3154A-8

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C3154A-15
      C466-2   C3154A-5

Are the resistances less than 3 ohms?
Yes GO to G6
No REPAIR the circuit in question.

G6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is connected.

  • Connect DSP C3154A .
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C730-1   C730-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C804-1   C804-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C736-1   C736-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to G7

G7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: THE AUDIO/SYNC SYSTEM DOES NOT OPERATE CORRECTLY FROM THE AUDIO CONTROL PANEL

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1087:01 LIN Bus 'A': General Electrical Failure Sets in continuous memory and during the on-demand self-test when the APIM loses communication with the audio control panel.
APIM U2013:01 Switch Pack: General Electrical Failure Sets in continuous memory when the APIM detects a fault with a knob control on the audio control panel.
APIM U2013:16 Switch Pack: Circuit Voltage Below Threshold Sets in continuous memory when the APIM receives a low voltage message from the audio control panel.
APIM U2013:17 Switch Pack: Circuit Voltage Above Threshold Sets in continuous memory when the APIM receives a high voltage message from the audio control panel.
APIM U2013:63 Switch Pack: Circuit/Component Protection Time-Out Sets in continuous memory and during the on-demand self-test when the APIM receives a continuous button press from the audio control panel for more than 2 minutes.

Possible Sources

  • Wiring, terminals, or connectors
  • Audio control panel
  • APIM
  • ACM
H1 CHECK THE AUDIO CONTROL PANEL POWER SUPPLY CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Audio Control Panel C2010 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2010-1   Ground

Is the voltage greater than 11 volts?
Yes GO to H2
No REPAIR the circuit.

H2 CHECK THE AUDIO CONTROL PANEL GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2010-1   C2010-4

Is the voltage greater than 11 volts?
Yes GO to H3
No REPAIR the circuit.

H3 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE
  • Disconnect APIM C2383A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2010-3   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to H4

H4 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2010-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H5
No REPAIR the circuit.

H5 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2010-3   C2383A-44

Is the resistance less than 3 ohms?
Yes INSTALL a new audio control panel.
REFER to: Audio Controls (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to H6
No REPAIR the circuit.

H6 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I: ONE OR MORE AUDIO/SYNC STEERING WHEEL CONTROL BUTTON IS INOPERATIVE

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
SCCM B137F:11 Steering Wheel Left Switch Pack: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the SCCM detects a short to ground from the left steering wheel switch input circuits.
SCCM B137F:13 Steering Wheel Left Switch Pack: Circuit Open Sets in continuous memory and during the on-demand self-test when the SCCM detects an open from the left steering wheel switch input circuits.
SCCM B137F:96 Steering Wheel Left Switch Pack: Component Internal Failure Sets in continuous memory and during the on-demand self-test when the SCCM detects a fault from the left steering wheel switch input circuits.
SCCM B137F:9E Steering Wheel Left Switch Pack: Stuck On Sets in continuous memory and during the on-demand self-test when the SCCM detects the left steering wheel switch is active for more than 2 minutes.
SCCM B1380:11 Steering Wheel Right Switch Pack: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the SCCM detects a short to ground from the right steering wheel switch input circuits.
SCCM B1380:13 Steering Wheel Right Switch Pack: Circuit Open Sets in continuous memory and during the on-demand self-test when the SCCM detects an open from the right steering wheel switch input circuits.
SCCM B1380:96 Steering Wheel Right Switch Pack: Component Internal Failure Sets in continuous memory and during the on-demand self-test when the SCCM detects a fault from the right steering wheel switch input circuits.
SCCM B1380:9E Steering Wheel Right Switch Pack: Stuck On Sets in continuous memory when the SCCM detects the right steering wheel switch is active for more than 2 minutes.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch
  • Clockspring
  • Steering wheel
  • SCCM
I1 CHECK FOR VOLTAGE TO THE STEERING WHEEL SWITCH
  • Ignition OFF.
  • Remove the driver airbag.
    REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).
  • Disconnect Right Steering Wheel Switch C2491 .
  • Disconnect Left Steering Wheel Switch C2490 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Right Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2491-2   C2491-5
      C2491-3   C2491-5
      C2491-4   C2491-5

    Click to display connectors

      Left Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2490-2   C2491-5
      C2490-3   C2491-5
      C2490-4   C2491-5

Are the voltages approximately 5 volts?
Yes INSTALL a new steering wheel switch. in question.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the concern is still present, REPLACE the other switch.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No GO to I2

I2 CHECK THE STEERING WHEEL HARNESS
  • Ignition OFF.
  • Disconnect Clockspring C218B .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 11 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 12 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 14 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 7 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 10 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 8 (component side) Upper Clockspring C218B, pin 9 (component side)

Are the voltages approximately 5 volts?
Yes REPAIR the steering wheel harness (open or short is present) or INSTALL a new steering wheel as necessary.
REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).
No GO to I3

I3 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) B137F:11 AND B1380:11
  • Using a diagnostic scan tool, carry out the SCCM self-test.

Is DTC B137F:11 or B1380:11 present?
Yes GO to I4
No GO to I5

I4 CHECK THE CLOCKSPRING FOR A SHORT TO GROUND
  • Ignition OFF.
  • Remove the clockspring.
    REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, clear the SCCM Diagnostic Trouble Codes (DTCs).
  • NOTE: DTC B137F:13 and B1380:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the SCCM self-test.

Is DTC B137F:11 or B1380:11 still present?
Yes GO to I6
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

I5 CHECK THE CLOCKSPRING FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 11 (component side) Lower Clockspring C218F, pin 5 (component side)
    Upper Clockspring C218B, pin 12 (component side) Lower Clockspring C218F, pin 6 (component side)
    Upper Clockspring C218B, pin 14 (component side) Lower Clockspring C218F, pin 8 (component side)
    Upper Clockspring C218B, pin 13 (component side) Lower Clockspring C218F, pin 7 (component side)
    Upper Clockspring C218B, pin 7 (component side) Lower Clockspring C218F, pin 1 (component side)
    Upper Clockspring C218B, pin 8 (component side) Lower Clockspring C218F, pin 2 (component side)
    Upper Clockspring C218B, pin 10 (component side) Lower Clockspring C218F, pin 4 (component side)
    Upper Clockspring C218B, pin 9 (component side) Lower Clockspring C218F, pin 3 (component side)

Are the resistances less than 3 ohms?
Yes GO to I6
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

I6 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the SCCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J: THE DISPLAY UNIT (NON-TOUCHSCREEN) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B108E:01 Display: General Electrical Failure Sets in continuous memory when the APIM detects an error from the display unit.
APIM B108E:02 Display: General Signal Failure Sets in continuous memory when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4A Display: Incorrect Component Installed Sets in continuous memory when the APIM detects an incorrect display unit.
APIM B108E:4B Display: Over Temperature Sets in continuous memory when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:63 Display: Circuit/Component Protection Time-Out Sets in continuous memory and during the on-demand self-test when the APIM detects a button press request from the display unit for more than 2 minutes.
APIM B108E:87 Display: Missing Message Sets in continuous memory when the APIM loses communication to the display unit.
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the APIM loses communication to the display unit.

Possible Sources

  • Communication concern
  • Configuration concern
  • LVDS cable
  • Display unit
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.

J1 CHECK FOR A NETWORK CONCERN

NOTE: The display screen is blank if a concern with the HS-CAN3 is present.

  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM and the APIM pass the network test?
Yes GO to J2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

J2 CHECK FOR COMMUNICATION AND CONFIGURATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Code (CMDTCs).

Are any communication or configuration related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in the appropriate section.
No GO to J3

J3 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to J4

J4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For DTC B108E:01, B108E:02, B108E:4B, B108E:63, B108E:87 or U0162:00, GO to J5
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No GO to J5

J5 CHECK THE LVDS (LOW VOLTAGE DIFFERENTIAL SIGNALING) CABLE FOR AN OPEN

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Ignition OFF.
  • Disconnect APIM C2383D .
  • Disconnect Display Unit C2253 .
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383D-1   C2253-4
      C2383D-2   C2253-3
      C2383D-3   C2253-2
      C2383D-4   C2253-1

Are the resistances less than 3 ohms?
Yes GO to J6
No INSTALL a new LVDS cable.
REFER to: Low Voltage Differential Signalling (LVDS) Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

J6 CHECK FOR CORRECT VOLTAGE TO THE DISPLAY UNIT

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

  • Connect APIM C2383D .
  • Ignition ON.
  • Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2253-3   Ground

Is the voltage greater than 11 volts?
Yes INSTALL a new display unit.
REFER to: Center Display Screen (415-00 Information and Entertainment System - General Information, Removal and Installation).
No GO to J7

J7 TEMPORARILY REMOVE THE POWER FROM THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION
  • Ignition OFF.
  • Connect Display Unit C2253 .
  • Remove BCM fuse 17 (15A).
  • Wait 1 minute.
  • Install BCM fuse 17 (15A).
  • Ignition ON.
  • Test the system to verify the concern is still present.

Is the concern still present?
Yes GO to J8
No The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the concern may have been caused from a low/high voltage event such as jump starting a vehicle.

J8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K: THE DISPLAY UNIT (TOUCHSCREEN) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

NOTE: The display unit calibrates after each ignition cycle. Touching the display during an ignition cycle may cause the touchscreen to be inoperative.


Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B108E:01 Display: General Electrical Failure Sets in continuous memory when the APIM detects an error from the display unit.
APIM B108E:02 Display: General Signal Failure Sets in continuous memory when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4A Display: Incorrect Component Installed Sets in continuous memory when the APIM detects an incorrect display unit.
APIM B108E:4B Display: Over Temperature Sets in continuous memory when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:87 Display: Missing Message Sets in continuous memory when the APIM loses communication to the display unit.
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets in continuous memory when the APIM loses communication to the display unit.

Possible Sources

  • Communication concern
  • Configuration concern
  • LVDS cable
  • Display unit
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.

  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST L: SOUND FROM THE SYNC SYSTEM (MUSIC/AUDIBLE PROMPTS) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • APIM
  • ACM
L1 CHECK THE OPERATION OF THE SPEAKERS USING THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) MODE
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • Using the audio system fade and balance features, adjust the audio sound to each of the zones (left front, right front, left rear and right rear).

Do all of the speakers operate?
Yes GO to L2
No REFER to the appropriate symptom in the Speakers and Sound Quality Symptom Chart.

L2 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) STEERING WHEEL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • View the following SCCM steering wheel audio/media switch Parameter Identifications (PIDs) while pressing each button:

    • Access the  SCCM  and monitor the  SW_VOICE  PID

    • Access the  SCCM  and monitor the  SW_MODE  PID

    • Access the  SCCM  and monitor the  SW_MUTE  PID


Do the Parameter Identifications (PIDs) correspond correctly?
Yes GO to L3
No GO to Pinpoint Test I

L3 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C240B .
  • Disconnect APIM C2383A .
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to L4
No REPAIR the circuit in question.

L4 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to L5

L5 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C2383A-4

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C2383A-24

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C2383A-26

Are the resistances greater than 10,000 ohms?
Yes GO to L6
No REPAIR the circuits in question.

L6 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C240B-19
      C2383A-4   C240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C240B-20
      C2383A-24   C240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C240B-21
      C2383A-26   C240B-32

Are the resistances less than 3 ohms?
Yes GO to L7
No REPAIR the circuit in question.

L7 CHECK FOR AN AC (ALTERNATING CURRENT) VOLTAGE SIGNAL FROM THE APIM (SYNC MODULE) OUTPUT CIRCUITS
  • Connect APIM C2383A .
  • Ignition ON.
  • For a concern playing music using the SYNC system, play an audio file through the audio system using a SYNC audio source (Bluetooth or USB port).
  • For a concern with the SYNC audible prompts, repeatedly press the VOICE button on the steering wheel switch while measuring the voltage.
  • NOTE: The ACM C240A connector must be connected for this test. Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C240B-19   C240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C240B-20   C240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C240B-21   C240B-32

Is a fluctuating AC voltage present?
Yes GO to L9
No GO to L8

L8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

L9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST M: VOICE COMMANDS ARE INOPERATIVE OR OUTGOING AUDIO IS NOT TRANSMITTED DURING A PHONE CALL

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1D79:11 Microphone Input: Circuit Short To Ground Sets during the on-demand self-test when the APIM detects a short to ground from the microphone circuitry.
APIM B1D79:12 Microphone Input: Circuit Short To Battery Sets during the on-demand self-test when the APIM detects a short to voltage from the microphone circuitry.
APIM B1D79:13 Microphone Input: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the microphone circuitry.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • Microphone
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST N: A USB (UNIVERSAL SERIAL BUS) INPUT CONCERN

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1252:11 USB Port: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the APIM detects a short to ground from the USB cable.
APIM B1252:13 USB Port: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the USB cable.
APIM B14FD:11 External Media Control Connectivity: Circuit Short To Ground Sets in continuous memory when the APIM detects a short to ground from the USB hub power supply circuit.

Possible Sources

  • USB device
  • Foreign object in the USB port
  • USB cable
  • Media hub
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST O: UNABLE TO PAIR BLUETOOTH DEVICE OR THE BLUETOOTH FUNCTIONALITY IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Possible Sources

  • Customer error
  • Incompatible Bluetooth device
  • Bluetooth device
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST P: AN INDIVIDUAL BLUETOOTH DEVICE OR FEATURE IS INOPERATIVE

NOTE: If an individual Bluetooth device is able to pair with the SYNC system, there are no concerns with the APIM .

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

Instruct the vehicle owner to review the device compatibility list. Refer to the appropriate Ford authorized website to view a list of compatible devices and features. Not all phone features are available through the SYNC system.

Possible Sources

  • Customer error
  • Incompatible Bluetooth device or feature
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST Q: THE 911 ASSIST OR EMERGENCY ASSISTANCE NOT OPERATIONAL MESSAGE DISPLAYS

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

If a fault message appears indicating the 911 Assist or emergency assistance is not operational, the concern may be caused due to modules not communicating or incorrect APIM procedures.

Possible Sources

  • 911 Assist or emergency assistance feature disabled
  • Network communication concern
  • Module configuration concern
  • APIM
Q1 VERIFY THE 911 ASSIST OR EMERGENCY ASSISTANCE FEATURE IS ENABLED
  • Ignition ON.
  • Check the 911 Assist or emergency assistance feature setting in the display settings menu.

Is the 911 Assist or emergency assistance setting enabled?
Yes GO to Q2
No ENABLE the 911 Assist or emergency assistance feature.

Q2 CHECK FOR CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Continuous Memory Diagnostic Trouble Codes (CMDTCs) present?
Yes REFER to the appropriate module DTC Chart in the appropriate section.
No GO to Q3

Q3 CHECK THE VEHICLE SERVICE HISTORY
  • Check the vehicle service history for recent service actions related to the RCM and the APIM .

Is any recent service action noted with the RCM or the APIM ?
Yes CARRY OUT the PMI procedure using As-Built data as directed by the diagnostic scan tool for the module in question.
No GO to Q4

Q4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST R: THE COMPASS/NAVIGATION IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Audio Unit Coaxial Cable Connections

NOTE: The vehicle may not be equipped with all the connections shown.


Item Part Number Description
1 — AM/FM1 antenna connection
2 — FM2 diversity antenna connection
3 — Satellite radio connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B119F:01 GPS Antenna: General Electrical Failure Sets in continuous memory when the APIM detects a short to ground or short to voltage from the GPS antenna cable.
APIM B119F:13 GPS Antenna: Circuit Open Sets in continuous memory when the APIM detects an open from the GPS antenna cable.

Possible Sources

  • Corrosion
  • Network communication concern
  • Obstructions in the GPS antenna line of sight to the satellite
  • GPS antenna cable
  • Roof mounted antenna
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

R1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE NETWORK COMMUNICATION
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U0121:00 present?
Yes GO to Pinpoint Test AK
No GO to R2

R2 CHECK THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA RECEPTION
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information, General Procedures).
  • Select "Location Information".
  • NOTE: If the value reads less than 3 for "Number of Satellites" or "No GPS Fix" for "Fix Mode", drive the vehicle to an outdoor location free from obstacles such as tall buildings and large trees. Monitor the "Number of Satellites" and "Fix Mode".

Are 3 or more satellites displayed for "Number of Satellites" and is "3D fix obtained" displayed for "fix Mode"?
Yes GO to R3
No GO to R4

R3 CHECK COMPASS FOR CORRECT OPERATION
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The system is operating correctly at this time. The concern may have been caused by obstructions in the antenna line of sight to the satellites for an extended period of time.
No GO to R13

R4 CHECK FOR CORRECT APIM (SYNC MODULE) OUTPUT VOLTAGE AT THE GPS (GLOBAL POSITIONING SYSTEM) CABLE CONNECTION
  • Ignition OFF.
  • Disconnect GPS antenna cable from the APIM .
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    GPS cable core at the APIM (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes For vehicles not equipped with a satellite radio, GO to R9
For vehicles equipped with a satellite radio, GO to R5
No GO to R13

R5 CHECK FOR PROMOTIONAL CHANNEL 184
  • Operate the audio system in satellite radio mode.
  • Select channel 184.

Does the satellite radio system receive channel 184 with normal sound quality?
Yes GO to R8
No GO to R6

R6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable at the ACM .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the ACM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite antenna cable core (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to R7
No GO to R12

R7 CHECK FOR VOLTAGE TO THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable to the ACM .
  • Disconnect the GPS /satellite radio antenna cable from the satellite radio antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS /satellite radio antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to R8
No IDENTIFY the cable with the open or short. INSTALL a new GPS /satellite radio cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

R8 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE
  • INSTALL a new satellite radio/GPS antenna splitter cable.
    REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The repair is complete. The concern was caused by the original satellite radio/GPS antenna splitter cable.
No GO to R10

R9 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Disconnect the GPS antenna cable from the GPS antenna.
  • Connect the GPS antenna cable to the APIM .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS antenna cable core at the antenna, cavity 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to R10
No IDENTIFY the cable with the open or short. INSTALL a new GPS cable for the one in question.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

R10 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the satellite radio/GPS antenna.
    REFER to: Satellite Radio / Global Positioning System (GPS) Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Inspect for corrosion on the audio unit antenna base and the vehicle mounting surface.

Is audio unit base and mounting free of corrosion?
Yes GO to R11
No REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.
REFER to: Satellite Radio / Global Positioning System (GPS) Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).

R11 CHECK THE ROOF MOUNTED ANTENNA
  • Install a new satellite radio/GPS antenna.
    REFER to: Satellite Radio / Global Positioning System (GPS) Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).
  • Test the system for normal operation.

Does the compass operate correctly?
Yes The repair is complete. The concern was caused by the antenna.
No GO to R13

R12 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

R13 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST S: THE SYNC CONNECT FEATURE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

TCU Coaxial Cable Connections


Item Part Number Description
1 — Secondary cellular (TCU) antenna cable connection
2 — Primary cellular antenna cable connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1246:11 GSM (Group System for Mobile) Antenna: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the primary cellular antenna cable to the GPS /satellite radio antenna for more than 5 seconds.
TCU B1246:13 GSM (Group System for Mobile) Antenna: Circuit Open Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the primary cellular antenna cable to the GPS /satellite radio antenna for more than 5 seconds.

Possible Sources

  • Outdated FordPass mobile application software version/level
  • Poor TCU reception
  • Vehicle owner device
  • Wiring, terminals, or connectors
  • Cellular antenna cable
  • Satellite radio antenna cable
  • Satellite radio antenna
  • TCU

Visual Inspection and Pre-checks

  • Check OASIS for any of the following applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, discontinue this test and follow the service article instructions.
  • Check the following with the vehicle owner:
  • The FordPass mobile application software version level matches the latest software version level available.
  • The device is logged into the FordPass mobile application with the login created from the application or with the Ford Owner account login that corresponds with the vehicle.
  • The vehicle is added to the FordPass mobile application.
  • SYNC Connect has been fully activated by authorizing the vehicle within the FordPass mobile application.
  • The vehicle is within cell phone tower range. Refer to the coverage map at mobile data service provider website.
  • Check the operation of the FordPass mobile applications for correct operation.

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

NOTE: This pinpoint test presumes the Diagnostic Pre-Checks have been completed.

S1 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to S2
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

S2 CHECK FOR TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES
  • Ignition ON.
  • Using a diagnostic tool, carry out the TCU self-test.

Is any DTC present?
Yes For any GSM antenna DTC , GO to S19
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section
No GO to S3

S3 VERIFY THE ONBOARD SERIAL NUMBER
  • Ignition ON.
  • Using the SYNC menu settings, view the onboard modem serial number:
    • Select Settings>General>About Sync

Is the onboard Modem Serial Number (ESN) present?
Yes GO to S6
No GO to S4

S4 RESET THE TCU (TELEMATIC CONTROL UNIT MODULE) AND RECHECK FOR THE ONBOARD SERIAL NUMBER
  • Ignition OFF.
  • Remove the TCU fuse.
  • Wait at 5 minutes.
  • Install the TCU fuse.
  • Ignition ON.
  • Using the SYNC menu settings, view the onboard modem serial number:
    • Select Settings>General>About Sync

Is the onboard Modem Serial Number (ESN) present?
Yes GO to S5
No GO to S21

S5 CHECK FOR CORRECT SYSTEM OPERATION
  • Operate the system and determine if the concern is still present

Is concern is still present?
Yes GO to S6
No The repair is complete.

S6 CHECK FOR UPDATED SOFTWARE
  • Program the TCU to the latest version level.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Check the system and determine if the concern is still present

Is concern is still present?
Yes GO to S7
No The repair is complete.

S7 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELL PHONE SIGNAL STRENGTH STATUS
  • Ignition ON.
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  CELL_SIGNAL  PID

  • NOTE: Drive the vehicle to an outdoor location with good cellular coverage. Refer to the coverage map at the mobile data service provider website. Monitor the cellular signal strength.

Is the cellular signal between -85 dBm to -95 dBm?
Yes GO to S8
No GO to S19

S8 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) AUTHORIZATION STATUS
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Wait for Auth" or "Authorized" displayed?
Yes GO to S11
No GO to S9

S9 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS IN FACTORY MODE
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Factory Mode" displayed?
Yes GO to S10
No GO to S12

S10 RECHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS IN FACTORY MODE
  • Carry out the PMI using -as-built data.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).

  • Access the  TCU  and monitor the  AUTHMODE  PID

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Factory Mode" still displayed?
Yes GO to S21
No GO to S11

S11 RESET THE VEHICLE CONNECTIVITY SETTINGS
  • Ignition ON.
  • Using the vehicle touchscreen display, access the SYNC 3 Menu.
    • Select Settings/FordPass Connect/Connectivity Settings
  • Turn the Vehicle Connectivity option off.
  • Ignition OFF.
  • Open and then close the driver door.
  • Lock the vehicle using the button on the IKT or passive key.
  • Wait 30 seconds.
  • Unlock the vehicle using the button on the IKT or passive key.
  • Ignition ON.
  • Wait 10 seconds.
  • Using the vehicle touchscreen display, access the SYNC 3 Menu.
    • Select Settings/FordPass Connect/Connectivity Settings
  • Turn the Vehicle Connectivity option on.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes GO to S12
No The repair is complete.

S12 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS UN-PROVISIONED
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Un-Provisioned" displayed?
Yes GO to S21
No GO to S13

S13 CHECK FOR CORRECT VEHICLE OPERATION
  • Verify the SYNC Connect function in question operates correctly on the vehicle, independent of the FordPass mobile application. For example, if the SYNC Connect door lock/unlock function is inoperative, check the operation of the door locks using the door lock control switch. and passive key, remote start function from the passive key, fuel level from the IPC , etc.

Does the function in question operate when tested in the vehicle?
Yes GO to S14
No REFER to the appropriate section in the Workshop Manual to diagnose the inoperative function.

S14 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS AUTHORIZED
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Authorized" displayed?
Yes The vehicle is operating correctly. The concern may have been caused by a loss of cellular signal, an outdated FordPass App or synchronization concern.
No GO to S15

S15 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS WAITING FOR AUTHORIZATION
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Waiting for Auth" displayed?
Yes GO to S16
No GO to S17

S16 ADD THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THEN RECHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS AUTHORIZED
  • Add the vehicle VIN to the FordPass/Lincoln Way App and then authorize the vehicle.

  • Access the  TCU  and monitor the  AUTHMODE  PID

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Authorized" displayed?
Yes The repair is complete.
No GO to S17

S17 CHECK FOR LOST COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait at least 10 seconds.
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any lost communication Diagnostic Trouble Codes (DTCs) set in any audio system module?
Yes REFER to the appropriate DTC Chart in this section.
No GO to S18

S18 CARRY OUT A SYNC SYSTEM MASTER RESET

NOTE: Carrying out a Master Reset returns all preference settings to the factory defaults, erases the phone book and call histories, deletes any Bluetooth devices paired with the SYNC system, removes any Wi-Fi network connections (cancelling any system update download or installation in progress), erases the saved destinations (home, favorites, and previous), and deletes any devices paired with the FordPass mobile application.

  • Carry out a master reset from the SYNC Master Reset menu. Refer to the Owner Literature.
  • Uninstall the FordPass mobile application in the phone associated with the vehicle.
  • Re-install the FordPass mobile application in the phone associated with the vehicle.
  • Reauthorize the vehicle from the FordPass application.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes GO to S19
No The repair is comnplete.

S19 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OUTPUT VOLTAGE TO THE PRIMARY CELLULAR ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the primary cellular antenna cable at the TCU .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the TCU . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Primary cellular antenna cable core at the TCU (component side)   Ground

Is the voltage approximately 1.8 volts?
Yes GO to S20
No GO to S21

S20 CHECK FOR VOLTAGE TO THE PRIMARY CELLULAR ANTENNA SPLITTER/COMBINER
  • Ignition OFF.
  • Connect the primary cellular antenna cable to the TCU .
  • Disconnect primary cellular antenna cable from the primary cellular antenna cable splitter/combiner.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Primary cellular antenna cable core at the primary cellular cable splitter/combiner, cavity 2   Ground

Is the voltage approximately 1.8 volts?
Yes GO to S21
No INSTALL a new primary cellular antenna cable.

S21 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST T: THE VEHICLE WI-FI HOTSPOT FEATURE IS INOPERATIVE, EXPERIENCING POOR DATA SPEED OR CANNOT STREAM ANY DATA

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

TCU Coaxial Cable Connections


Item Part Number Description
1 — Secondary cellular (TCU) antenna cable connection
2 — Primary cellular antenna cable connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1D55:11 Antenna #2: Circuit Short To Ground Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the secondary cellular ( TCU ) antenna cable for more than 5 seconds.
TCU B1D55:13 Antenna #2: Circuit Open Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the secondary cellular ( TCU ) antenna cable for more than 5 seconds.

Possible Sources

  • FordPass concern
  • Poor TCU reception
  • Wi-Fi connected device
  • Wiring, terminals, or connectors
  • TCU antenna
  • Secondary cellular (TCU ) antenna cable
  • TCU
T1 CHECK FOR CORRECT SYNC CONNECT OPERATION
  • Verify the SYNC Connect function operates correctly. For example, check the operation of the door locks using the SYNC Connect feature.

Does the SYNC Connect feature operate?
Yes GO to T2
No GO to Pinpoint Test S

T2 COMPARE THE WI-FI SPEED TO A SECOND DEVICE
  • Park the vehicle away from buildings with a clear view of the sky.
  • Establish a vehicle Wi-Fi Hotspot connection.
  • Use a laptop (or equivalent device), connect to the vehicle Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Disconnect the laptop (or equivalent device) from the vehicle Wi-Fi Hotspot
  • Establish a Wi-Fi connection using a cell phone (or equivalent device) using the cellular network.
  • Use the laptop (or equivalent device) to connect to the new Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Compare the data speed from the vehicle Wi-Fi Hotspot to the second device supporting a Wi-Fi hotspot.

Is the data speed of the vehicle 50% or less than the second device?
Yes GO to T3
No The system is operating as designed. The concern may have been caused by environmental conditions or obstruction to the signal.

T3 CHECK FOR TCU (TELEMATIC CONTROL UNIT MODULE) SECONDARY CELLULAR ANTENNA VOLTAGE OUTPUT
  • Ignition OFF.
  • Disconnect the secondary cellular (TCU ) antenna cable from the TCU .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the TCU . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Secondary cellular (TCU ) antenna cable core at the TCU (component side)   Ground

Is the voltage approximately 1.8 volts?
Yes GO to T4
No GO to T5

T4 CHECK FOR VOLTAGE TO THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA
  • Ignition OFF.
  • Connect the secondary cellular (TCU ) antenna cable to the TCU .
  • Disconnect secondary cellular (TCU ) antenna cable from the TCU antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    secondary cellular (TCU ) antenna cable core at the TCU antenna   Ground

Is the voltage approximately 1.8 volts?
Yes INSTALL a new secondary cellular (TCU ) antenna.
REFER to: Telematics Control Unit (TCU) Module Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to T5
No INSTALL a new secondary cellular (TCU ) antenna cable.
REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

T5 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U: SYNC APPLINK CONCERN

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

  • NOTE: AppLink does not operate if Android Auto™ and Apple CarPlay™ are enabled.

    REVIEW the mobile device platform, application, and application version compatibility list. Refer to the appropriate Ford authorized website to view a list of compatible devices and features. It is normal for incompatible mobile device platforms, applications, and application versions to be unavailable through SYNC AppLink.
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth only, GO to Pinpoint Test O
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth and the USB port, GO to Pinpoint Test N

Possible Sources

  • Refer to the pinpoint test
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST V: ANDROID AUTO™ OR APPLE CARPLAY™ CONCERN

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

  • NOTE: Make sure the operating system of the device and the SYNC system are current.

    CHECK the operation of the USB port by using a known good USB device to play audio files.
    • If the SYNC system does not recognize the USB device, GO to Pinpoint Test N
    • If the SYNC system recognizes the USB device, refer to the Android Auto™ or Apple CarPlay™ information in the Owner Literature.

Possible Sources

  • Refer to the pinpoint test
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST W: U0100:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM , the APIM and the TCU communicate with the PCM over the CAN . If messages are missing or not received from the PCM module, features such as the speed compensated volume can be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the PCM for more than 5 seconds.
APIM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the PCM for more than 5 seconds.
TCU U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the PCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • TCU concern
  • PCM
W1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to W2
No The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

W2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the PCM pass the network test?
Yes GO to W3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

W3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , APIM , TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to W4

W4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Diagnosis and Testing in the appropriate 303-14 section.
No GO to W5

W5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , APIM , TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , APIM , TCU ) setting the DTC .

Is DTC U0100:00 still present?
Yes GO to W6
No The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

W6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the PCM and the module in question ( ACM , APIM , TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to W7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

W7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the PCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   VIN required to access Guided Routine (PCM)
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST X: U0121:00 (ACM (AUDIO FRONT CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM communicates with the ABS module over the CAN . If messages are missing or not received from the ABS module, the GPS feature may not be accurate.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the ABS module for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • ABS module
X1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to X2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

X2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ABS module pass the network test?
Yes GO to X3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

X3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the ACM .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to X4

X4 CHECK FOR NON-NETWORK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).
No GO to X5

X5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0121:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the ACM .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the ACM .

Is DTC U0121:00 still present?
Yes GO to X6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

X6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ABS module and the ACM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to X7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

X7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ABS module connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ABS module connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ABS module. REFER to the appropriate Removal and Installation procedure in section 206-09.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y: U0140:00 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM , the DSP and the TCU communicate with the BCM over the CAN . If messages are missing or not received from the BCM , the display screen brightness may not operate not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the BCM for more than 5 seconds.
DSP U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the BCM for more than 5 seconds.
TCU U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the BCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • TCU concern
  • BCM
Y1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to Y2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Y2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?
Yes GO to Y3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

Y3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to Y4

Y4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to Y5

Y5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , TCU ) setting the DTC .

Is DTC U0140:00 still present?
Yes GO to Y6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Y6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the BCM and the module in question ( ACM , DSP , TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Y7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Y7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the BCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Z: U0155:00 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The ACM and the DSP communicate with the IPC over the CAN . If messages are missing or not received from the IPC , features such as the display illumination or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the IPC for more than 5 seconds.
DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the IPC for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • IPC
Z1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to Z2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Z2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPC pass the network test?
Yes GO to Z3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

Z3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to Z4

Z4 CHECK FOR NON-NETWORK IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes
REFER to: Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).
No GO to Z5

Z5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP ) setting the DTC .

Is DTC U0155:00 still present?
Yes GO to Z6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Z6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the IPC and the module in question ( ACM , DSP ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Z7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Z7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPC connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPC connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC. Refer to the appropriate Removal and Installation procedure in Section 413-01.
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AA: U0184:00 (DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The DSP communicates with the ACM over the CAN . If messages are missing or not received from the ACM , the touchscreen display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP U0184:00 Lost Communication With Radio: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the ACM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • DSP concern
  • ACM
AA1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AA2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AA2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to AA3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AA3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the DSP .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AA4

AA4 CHECK FOR NON-NETWORK ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AA5

AA5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0184:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the DSP .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the DSP .

Is DTC U0184:00 still present?
Yes GO to AA6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AA6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ACM and the DSP . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AA7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AA7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AB: U0198:00 (DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The DSP communicate with the TCU over the CAN . If messages are missing or not received from the TCU , the SYNC Connect feature may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the TCU for more than 5 seconds.

Possible Sources

  • Network communication concern
  • DSP concern
  • TCU
AB1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AB2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AB2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to AB3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AB3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the DSP .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AB4

AB4 CHECK FOR NON-NETWORK TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the TCU self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AB5

AB5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0198:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the DSP .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the DSP .

Is DTC U0198:00 still present?
Yes GO to AB6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AB6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the TCU and the DSP . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AB7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AB7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC: U0238:00 (ACM (AUDIO FRONT CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM communicates with the audio DSP module over the CAN . If messages are missing or not received from the DSP , features such as the ANC may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the DSP for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP
AC1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AC2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the DSP pass the network test?
Yes GO to AC3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AC3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the ACM .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AC4

AC4 CHECK FOR NON-NETWORK DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AC5

AC5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0238:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the ACM .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the ACM .

Is DTC U0238:00 still present?
Yes GO to AC6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the audio DSP module and the ACM . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AC7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AC7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD: U0253:00 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM , the DSP and the TCU communicate with the APIM over the CAN . If messages are missing or not received from the APIM , the display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the ACM detects network messages are missing from the APIM for more than 5 seconds.
DSP U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the DSP detects network messages are missing from the APIM for more than 5 seconds.
TCU U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets in continuous memory when the TCU detects network messages are missing from the APIM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • TCU concern
  • APIM
AD1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to AD2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the APIM pass the network test?
Yes GO to AD3
No
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AD3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AD4

AD4 CHECK FOR NON-NETWORK APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to AD5

AD5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , TCU ) setting the DTC .

Is DTC U0253:00 still present?
Yes GO to AD6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the APIM and the module in question ( ACM , DSP , TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AD7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AD7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE: U3003:16 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it falls below a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage below 10 volts.
APIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage below 10 volts.
DSP U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage below 10 volts.
TCU U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage below 10 volts.

Possible Sources

  • Previous low battery voltage
  • Wiring, terminals, or connectors
  • Charging system concern
  • ACM
  • APIM
  • DSP
  • TCU
AE1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question setting the low voltage DTC .
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question setting the low voltage DTC .

Is DTC U3003:16 still present?
Yes GO to AE2
No The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

AE2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the charging system concern. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AE3

AE3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
  • Ignition OFF.
  • Check the battery condition and verify the battery is fully charged.
    REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?
Yes GO to AE4
No DIAGNOSE the battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

AE4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, monitor the voltage supply PID :
    • ACM :

      Access the  ACM  and monitor the  VPWR (V)  PID

    • APIM :

      Access the  APIM  and monitor the  VPWR (V)  PID

    • DSP :

      Access the  DSP  and monitor the  VPWR (V)  PID

    • TCU :

      Access the  TCU  and monitor the  VPWR (V)  PID


Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM , GO to AE7
For the APIM , GO to AE8
For the DSP , GO to AE9
For the TCU , GO to AE10
No GO to AE5

AE5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
  • Ignition OFF.
  • Disconnect the suspect module.
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C240A-1   Ground

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   Ground

    Click to display connectors

      DSP


    Positive Lead Measurement / Action Negative Lead
      C3154B-4   Ground
      C3154B-8   Ground

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C2494-1   Ground

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes GO to AE6
No REPAIR the circuit for high resistance.

AE6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C240A-1   C240A-4

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   C2383A-37

    Click to display connectors

      DSP


    Positive Lead Measurement / Action Negative Lead
      C3154B-4   C3154B-1
      C3154B-8   C3154B-5

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C2494-1   C2494-13

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM , GO to AE7
For the APIM , GO to AE8
For the DSP , GO to AE9
For the TCU , GO to AE10
No REPAIR the circuit for high resistance.

AE7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AE8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AE9 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AE10 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF: U3003:17 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it rises above a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage is greater than 16 volts.
APIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage is greater than 16 volts.
DSP U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage is greater than 16 volts.
TCU U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage is greater than 16 volts.

Possible Sources

  • Charging system concern
  • ACM
  • APIM
  • DSP
  • TCU

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

AF1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AF2

AF2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING
  • Turn off all interior/exterior lights and accessories.
  • Start and run the engine at approximately 2,000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AF3

AF3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the suspect module.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module setting the high voltage DTC .

Is DTC U3003:17 still present?
Yes For the ACM , GO to AF4
For the APIM , GO to AF5
For the DSP , GO to AF6
For the TCU , GO to AF7
No The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

AF4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AF5 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AN
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AF6 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AF7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AG: INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the DSP receives invalid network data from the BCM .
TCU U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the TCU receives invalid network data from the BCM .
TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information Sets when the TCU receives invalid network data from the APIM .

Possible Sources

  • Suspect module
AG1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data.

Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
Yes DIAGNOSE the module sending the invalid data. REFER to the appropriate section in the Workshop Manual.
No DIAGNOSE the observable symptom present. REFER to the appropriate Symptom chart in this section.

PINPOINT TEST AH: MODULE CONFIGURATION FAULT

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:06 Control Module Cal-Config Data: Algorithm Based Failures Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:41 Control Module Cal-Config Data: General Checksum Failure Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:44 Control Module Cal-Config Data: Data Memory Failure Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:51 Control Module Cal-Config Data: Not Programmed Sets due to an incomplete or incorrect ACM PMI .
ACM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI .
ACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI .
DSP U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:41 Control Module Cal-Config Data: General Checksum Failure Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:48 Control Module Cal-Config Data: Supervision Software Failure Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:51 Control Module Cal-Config Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI .
DSP U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI .
DSP U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI .
TCU B156D:55 TCU Customer Connectivity Settings Synchronization With HMI: Not Configured Sets due to an incomplete or incorrect TCU PMI .
TCU B156D:89 TCU Customer Connectivity Settings Synchronization With HMI: Data Transfer Failure Sets due to an incomplete or incorrect TCU PMI .
TCU U2024:00 Control Module Cal-Config Data: No Sub Type Information Sets due to an incomplete or incorrect TCU PMI .
TCU U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect TCU PMI .
TCU U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect TCU PMI .

Possible Sources

  • Incomplete or incorrect module PMI
AH1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the PMI procedure for the suspect module as directed by the diagnostic scan tool.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the original DTC still present?
Yes INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AI: INTERNAL MODULE FAILURE

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3000:41 Control Module: General Checksum Failure Sets when the ACM detects an internal fault.
ACM U3000:42 Control Module: General Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:43 Control Module: Special Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:44 Control Module: Data Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:45 Control Module: Program Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:46 Control Module: Calibration/Parameter Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:51 Control Module: Not Programmed Sets when the ACM detects an internal fault.
ACM U3000:88 Control Module: Bus Off Sets when the ACM detects an internal fault.
ACM U3000:92 Control Module: Performance Or Incorrect Operation Sets when the ACM detects an internal fault.
ACM U3000:94 Control Module: Unexpected Operation Sets when the ACM detects an internal fault.
ACM U3000:96 Control Module: Component Internal Failure Sets when the ACM detects an internal fault.
DSP U3000:41 Control Module: General Checksum Failure Sets when the DSP detects an internal fault.
DSP U3000:42 Control Module: General Memory Failure Sets when the DSP detects an internal fault.
TCU U3000:41 Control Module: General Checksum Failure Sets when the TCU detects an internal fault.
TCU U3000:42 Control Module: General Memory Failure Sets when the TCU detects an internal fault.
TCU U3000:56 Control Module: Invalid/Incompatible Configuration Sets when the TCU detects an internal fault.

Possible Sources

  • Suspect module
AI1 INSTALL A NEW SUSPECT MODULE
  • Ignition OFF.
  • NOTE: For the APIM , carry out the guided diagnostic first. GO to Pinpoint Test AN INSTALL a new module in question. Refer to the appropriate Removal and Installation procedure in this section.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS and follow the instructions for the applicable TSB , GSB , SSM or FSA .
No The repair is complete.

PINPOINT TEST AJ: TCU (TELEMATIC CONTROL UNIT MODULE) DTC (DIAGNOSTIC TROUBLE CODE) U3000:04, U3000:09 OR U3000:52

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U3000:04 Control Module: System Internal Failures Sets when the TCU detects an internal fault.
TCU U3000:09 Control Module: Component Failures Sets when the TCU detects an internal fault.
TCU U3000:52 Control Module: Not Activated Sets when the TCU detects an internal fault.

Possible Sources

  • TCU software
  • TCU
AJ1 CLEAR THE DTC (DIAGNOSTIC TROUBLE CODE) AND RETEST
  • Ignition ON.
  • Clear the TCU DTC .
  • Wait 10 seconds.
  • Carry out the TCU on-demand self-test.

Is the DTC still present?
Yes GO to AJ2
No The repair is complete.

AJ2 PROGRAM THE TCU (TELEMATIC CONTROL UNIT MODULE)
  • Ignition OFF.
  • Disconnect the battery.
  • Wait 5 minutes.
  • Reconnect the battery.
  • Program the TCU with the latest software level using the IDS /FRDS.
  • Ignition ON.
  • NOTE: Make sure the SYNC system is connected to the internet before retesting. Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS and follow the instructions for the applicable TSB , GSB , SSM or FSA . INSTALL a new TCU . REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AK: APIM (SYNC MODULE) LOST COMMUNICATION TO A MODULE

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the ABS module for more than 5 seconds.
APIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the BCM for more than 5 seconds.
APIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information Sets in continuous memory when the APIM detects messages from the RCM are missing for more than 5 seconds.
APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the IPC for more than 5 seconds.
APIM U0159:00 Lost Communication With Parking Assist Control Module 'A': No Sub Type Information Set in continuous memory when the APIM detects parking aid network messages are missing from the IPMA for more than 5 seconds.
APIM U0184:00 Lost Communication With Radio: No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the ACM for more than 5 seconds.
APIM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the TCU for more than 5 seconds.
APIM U0208:00 Lost Communication With 'Seat Control Module A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SCME for more than 5 seconds.
APIM U020C:00 Lost Communication with Wireless Accessory Charging Module 'A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the WACM for more than 5 seconds.
APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module 'A': No Sub Type Information Sets in continuous memory when the APIM detects left cross traffic alert network messages are missing from the IPMA for more than 5 seconds.
APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module 'B': No Sub Type Information Sets in continuous memory when the APIM detects right cross traffic alert network messages are missing from the IPMA for more than 5 seconds when the ignition is on.
APIM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the DSP for more than 5 seconds.
APIM U0293:00 Lost Communication With Hybrid/EV Powertrain Control Module 'A': No Sub Type Information Sets in continuous memory when the APIM detects network messages are missing from the SOBDMC for more than 5 seconds.
APIM U3000:88 Control Module: Bus Off The module could not communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .

Possible Sources

  • Communication from sending module concern
  • Intermittent CAN failure concern
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST AL: APIM (SYNC MODULE) INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets when the APIM receives invalid network data from the ABS module.
APIM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the BCM .
APIM U0423:00 Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the IPC .
APIM U0452:00 Invalid Data Received From Restraints Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the RCM .

Possible Sources

  • Corrupt or invalid data received from sending module
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST AM: APIM (SYNC MODULE) CONFIGURATION

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U2017:45 Control Module Software #2: Program Memory Failure Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:51 Control Module Software #2: Not Programmed Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:52 Control Module Software #2: Not Activated Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:54 Control Module Software #2: Missing Calibration Sets due to an incomplete or incorrect APIM PMI .
APIM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI .
APIM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI .

Possible Sources

  • Corrupt module configuration
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.
PINPOINT TEST AN: APIM (SYNC MODULE) INTERNAL MODULE CONCERN

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U3000:04 Control Module: System Internal Failures Sets when the APIM detects an internal fault.
APIM U3000:09 Control Module: Component Failures Sets when the APIM detects an internal fault.
APIM U3000:41 Control Module: General Checksum Failure Sets when the APIM detects an internal fault.

Possible Sources

  • Corrupt module firmware
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC.

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