Ford Escape 2020-2024 Service Manual / Powertrain / Engine / Electronic Engine Controls / Diagnosis and Testing - Electronic Engine Controls

Ford Escape: Electronic Engine Controls / Diagnosis and Testing - Electronic Engine Controls

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).

Module	DTC	Description	Action
PCM	P0602:00	Powertrain Control Module Programming Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0604:00	Internal Control Module Random Access Memory (RAM) Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0605:00	Internal Control Module Read Only Memory (ROM) Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0606:00	Control Module Processor: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0607:00	Control Module Performance: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0610:00	Control Module Vehicle Options Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P061E:00	Internal Control Module Brake Signal Performance: No Sub Type Information	GO to Pinpoint Test QA
PCM	P062F:00	Internal Control Module EEPROM Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P0630:00	VIN Not Programmed or Incompatible - ECM/PCM: No Sub Type Information	GO to Pinpoint Test QA
PCM	P064F:00	Unauthorized Software/Calibration Detected: No Sub Type Information	GO to Pinpoint Test QA
PCM	P1001:00	KOER Not Able to Complete, KOER Aborted: No Sub Type Information	GO to Pinpoint Test R
PCM	P160A:00	Control Module Vehicle Options Reconfiguration Error: No Sub Type Information	GO to Pinpoint Test QA
PCM	P161C:00	Automatic Engine Shutdown Mismatch with Vehicle Configuration: No Sub Type Information	GO to Pinpoint Test QA
PCM	P1635:00	Tire/Axle Out of Acceptable Range: No Sub Type Information	GO to Pinpoint Test QA
PCM	P1639:00	Vehicle ID Block Corrupted, Not Programmed: No Sub Type Information	GO to Pinpoint Test QA
PCM	P166A:00	Restraints Deployment Communication Circuit: No Sub Type Information	GO to Pinpoint Test S
PCM	P1935:00	Brake Switch/Sensor Signal: No Sub Type Information	GO to Pinpoint Test QA
PCM	P1A0C:00	Hybrid Powertrain Control Module - Engine Disabled: No Sub Type Information	GO to Pinpoint Test T
PCM	P264F:00	Engine Serial Number Not Programmed or Incompatible: No Sub Type Information	GO to Pinpoint Test QA
PCM	U0103:00	Lost Communication With Gear Shift Control Module A: No Sub Type Information	GO to Pinpoint Test A
PCM	U0104:00	Lost Communication With Cruise Control Module: No Sub Type Information	GO to Pinpoint Test B
PCM	U0111:00	Lost Communication With Battery Energy Control Module 'A': No Sub Type Information	GO to Pinpoint Test C
PCM	U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information	GO to Pinpoint Test D
PCM	U0126:00	Lost Communication With Steering Angle Sensor Module: No Sub Type Information	GO to Pinpoint Test E
PCM	U0131:00	Lost Communication With Power Steering Control Module 'A': No Sub Type Information	GO to Pinpoint Test F
PCM	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test G
PCM	U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	GO to Pinpoint Test H
PCM	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test I
PCM	U0164:00	Lost Communication With HVAC Control Module: No Sub Type Information	GO to Pinpoint Test J
PCM	U0199:00	Lost Communication With 'Door Control Module A': No Sub Type Information	GO to Pinpoint Test K
PCM	U0200:00	Lost Communication With 'Door Control Module B': No Sub Type Information	GO to Pinpoint Test L
PCM	U0212:00	Lost Communication With Steering Column Control Module: No Sub Type Information	GO to Pinpoint Test E
PCM	U0230:00	Lost Communication With Rear Gate Module: No Sub Type Information	GO to Pinpoint Test M
PCM	U023A:00	Lost Communication With Image Processing Module A: No Sub Type Information	GO to Pinpoint Test N
PCM	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test O
PCM	U0298:00	Lost Communication With DC/DC Converter Control Module 'A': No Sub Type Information	GO to Pinpoint Test P
PCM	U0405:00	Invalid Data Received From Cruise Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U0412:00	Invalid Data Received From Battery Energy Control Module 'A': No Sub Type Information	GO to Pinpoint Test Q
PCM	U0415:00	Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information	GO to Pinpoint Test Q
PCM	U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U0423:00	Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U0594:00	Invalid Data Received From Hybrid/EV Powertrain Control Module 'A': No Sub Type Information	GO to Pinpoint Test Q
PCM	U1011:00	Invalid Internal Control Module Monitoring Data Received from ECM/PCM: No Sub Type Information	GO to Pinpoint Test Q
PCM	U1012:00	Invalid Internal Control Module Monitoring Data Received from Anti-Lock Brake System (ABS) Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U101E:00	Invalid Internal Control Module Monitoring Data Received from Gear Shift Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U101F:00	Invalid Internal Control Module Monitoring Data Received from Transmission Range Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U102F:00	Invalid Internal Control Module Monitoring Data Received From All Wheel Drive Control Module: No Sub Type Information	GO to Pinpoint Test Q
PCM	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test QA
PCM	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test QA
PCM	U2200:00	Control Module Configuration Memory Corrupt: No Sub Type Information	GO to Pinpoint Test QA

Pinpoint Tests

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).

PINPOINT TEST A: U0103

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0103:00	Lost Communication With Gear Shift Control Module A: No Sub Type Information	The PCM sets this DTC if data messages from the GSM module through the GWM are missing.

Possible Sources

Communications network concern
GSM
GWM
PCM

A1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to A2

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.

A2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the GSM module pass the network test?

Yes

GO to A3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

A3 PERFORM GSM (GEAR SHIFT MODULE) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a GSM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: External Controls (307-05B Automatic Transmission External Controls - Automatic Transmission – HF45, Diagnosis and Testing).

GO to A4

A4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to A5

A5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to A6

A6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0103 still present?

Yes

GO to A7

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.

A7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 GSM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 A8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

A8 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the GSM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the GSM connector(s). 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 GSM .
REFER to: Gear Shift Module (GSM) (307-05B Automatic Transmission External Controls - Automatic Transmission – HF45, 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: U0104

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0104:00	Lost Communication With Cruise Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the CCM module through the GWM are missing.

Possible Sources

Communications network concern
CCM
GWM
PCM

B1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to B2

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.

B2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the CCM module pass the network test?

Yes

GO to B3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

B3 PERFORM CCM (CRUISE CONTROL MODULE) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a CCM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Cruise Control (419-03B Cruise Control - Vehicles With: Adaptive Cruise Control, Diagnosis and Testing).

GO to B4

B4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to B5

B5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to B6

B6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0104 still present?

Yes

GO to B7

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.

B7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 CCM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 B8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

B8 CHECK FOR CORRECT CCM (CRUISE CONTROL MODULE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the CCM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the CCM connector(s). 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 CCM .
REFER to: Cruise Control Module (CCM) (419-03B Cruise Control - Vehicles With: Adaptive Cruise Control, 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 C: U0111

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0111:00	Lost Communication With Battery Energy Control Module 'A': No Sub Type Information	The PCM sets this DTC if data messages from the BECM module through the GWM are missing.

Possible Sources

Communications network concern
BECM
GWM
PCM

C1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to C2

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.

C2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the BECM module pass the network test?

Yes

GO to C3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

C3 PERFORM BECM (BATTERY ENERGY CONTROL MODULE) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a BECM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: High Voltage Battery, Mounting and Cables - Hybrid Electric Vehicle (HEV) (414-03A High Voltage Battery, Mounting and Cables, Diagnosis and Testing).

GO to C4

C4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to C5

C5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to C6

C6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0103 still present?

Yes

GO to C7

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.

C7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 BECM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 C8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

C8 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the BECM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the CCM connector(s). 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 BECM .
REFER to: Battery Energy Control Module (BECM) - Hybrid Electric Vehicle (HEV) (414-03A High Voltage Battery, Mounting and Cables, 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: U0121

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information	The PCM sets this DTC if data messages from the ABS module through the GWM are missing.

Possible Sources

Communications network concern
ABS module
GWM
PCM

D1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to D2

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.

D2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the ABS module pass the network test?

Yes

GO to D3

No	REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

D3 PERFORM ABS (ANTI-LOCK BRAKE SYSTEM) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a ABS control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

GO to D4

D4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to D5

D5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to D6

D6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0121 still present?

Yes

GO to D7

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.

D7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 D8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

D8 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the ABS control module connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the ABS control module connector. 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 ABS module.
REFER to: Hydraulic Control Unit (HCU) - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Brake System (ABS) and Stability Control, 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 E: U0126, U0212

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0126:00	Lost Communication With Steering Angle Sensor Module: No Sub Type Information	he PCM sets this DTC if data messages from the SCCM through the GWM are missing.
PCM U0212:00	Lost Communication With Steering Column Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the SCCM through the GWM are missing.

Possible Sources

Communications network concern
SCCM
GWM
PCM

E1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to E2

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.

E2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the SCCM module pass the network test?

Yes

GO to E3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

E3 PERFORM SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform a SCCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

GO to E4

E4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to E5

E5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to E6

E6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0126 or U0212 still present?

Yes

GO to E7

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.

E7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 SCCM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 E8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

E8 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCCM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the SCCM connector(s). 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 F: U0131

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0131:00	Lost Communication With Power Steering Control Module 'A': No Sub Type Information	A continuous memory DTC that sets in the PCM if messages from the PSCM through the GWM are missing.

Possible Sources

Communication network concern
Battery voltage concern
GWM
PSCM
PCM

F1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to F2

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. CLEAR the DTC .

F2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Does the PSCM pass the network test?

Yes

GO to F3

No	DIAGNOSE no communication with the PSCM . REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

F3 PERFORM THE PSCM (POWER STEERING CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform aPSCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Power Steering (211-02 Power Steering, Diagnosis and Testing).

GO to F4

F4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to F5

F5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to F6

F6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0131 still present?

Yes

GO to F7

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.

F7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 PSCM control module, GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 F8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

F8 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PSCM control module connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PSCM control module 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

VIN required to access Guided Routine (EPAS)

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: U0140

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0140:00	Lost Communication With Body Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the BCM control module through the GWM are missing.

Possible Sources

Communications network concern
BCM
GWM
PCM

G1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to G2

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.

G2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the BCM pass the network test?

Yes

GO to G3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

G3 PERFORM BCM (BODY CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform a BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to G4

G4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to G5

G5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to G6

G6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0136 still present?

Yes

GO to G7

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.

G7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 AWD module, GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 G8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

G8 CHECK FOR CORRECT AWD (ALL-WHEEL DRIVE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the AWD control module connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the AWD control module connector. 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 module.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, 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: U0151

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the RCM through the GWM are missing.

Possible Sources

Communications network concern
RCM
GWM
PCM

H1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to H2

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.

H2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the RCM pass the network test?

Yes

GO to H3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

H3 PERFORM RCM (RESTRAINTS CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform a RCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).

GO to H4

H4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the BCM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to H5

H5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to H6

H6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0151 still present?

Yes

GO to H7

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.

H7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 RCM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 H8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

H8 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RCM module connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RCM module 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 RCM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, 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 I: U0155

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the IPC control module through the GWM are missing.

Possible Sources

Communications network concern
IPC control module
GWM
PCM

I1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to I2

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.

I2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the IPC module pass the network test?

Yes

GO to I3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

I3 PERFORM IPC (INSTRUMENT PANEL CLUSTER) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a IPC control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Instrumentation, Message Center and Warning Chimes (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

GO to I4

I4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to I5

I5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to I6

I6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0136 still present?

Yes

GO to I7

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.

I7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 AWD module, GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 I8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

I8 CHECK FOR CORRECT AWD (ALL-WHEEL DRIVE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the AWD control module connector.

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the AWD control module connector. 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 IPC module.
REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, 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: U0164

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0164:00	Lost Communication With HVAC Control Module: No Sub Type Information	The PCM sets this DTC if data messages from the HVAC control module through the GWM are missing.

Possible Sources

Communications network concern
HVAC control module
GWM
PCM

J1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to J2

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.

J2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the HVAC control module pass the network test?

Yes

GO to J3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

J3 PERFORM HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a HVAC control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC)/Electronic Automatic Temperature Control (EATC) (412-00 Climate Control System - General Information, Diagnosis and Testing).
REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) (412-00 Climate Control System - General Information, Diagnosis and Testing).

GO to J4

J4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to J5

J5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to J6

J6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0164 still present?

Yes

GO to J7

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.

J7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 HVAC control module, GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 J8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

J8 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the HVAC control module connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the HVAC control module 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 HVAC control module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control 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 K: U0199

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0199:00	Lost Communication With 'Door Control Module A': No Sub Type Information	he PCM sets this DTC if data messages from the DDM through the GWM are missing.

Possible Sources

Communications network concern
DDM control module
GWM
PCM

K1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to K2

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.

K2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the DDM pass the network test?

Yes

GO to K3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

K3 PERFORM DDM (DRIVER DOOR MODULE) SELF-TEST

Using a diagnostic scan tool, perform a DDM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

GO to K4

K4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to K5

K5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to K6

K6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0199 still present?

Yes

GO to K7

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.

K7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 DDM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 K8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

K8 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the DDM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the DDM connector(s). 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 DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, 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 L: U0200

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0200:00	Lost Communication With 'Door Control Module B': No Sub Type Information	The PCM sets this DTC if data messages from the PDM through the GWM are missing.

Possible Sources

Communications network concern
PDM control module
GWM
PCM

L1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to L2

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.

L2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the PDM pass the network test?

Yes

GO to L3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

L3 PERFORM PDM (PASSENGER DOOR MODULE) SELF-TEST

Using a diagnostic scan tool, perform a PDM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

GO to L4

L4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to L5

L5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to L6

L6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0200 still present?

Yes

GO to L7

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.

L7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 PDM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 L8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

L8 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the PDM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the PDM connector(s). 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 PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, 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: U0230

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0230:00	Lost Communication With Rear Gate Module: No Sub Type Information	The PCM sets this DTC if data messages from the RGTM module through the GWM are missing.

Possible Sources

Communications network concern
RGTM
GWM
PCM

M1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to M2

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.

M2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the RGTM module pass the network test?

Yes

GO to M3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

M3 PERFORM RGTM (REAR GATE TRUNK MODULE) CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a RGTM control module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Body Closures (501-03 Body Closures, Diagnosis and Testing).

GO to M4

M4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to M5

M5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to M6

M6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0230 still present?

Yes

GO to M7

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.

M7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 RGTM , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 M8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

M8 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RGTM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the RGTM connector(s). 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 RGTM module.
REFER to: Rear Gate Trunk Module (RGTM) (501-03 Body Closures, 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 N: U023A

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U023A:00	Lost Communication With Image Processing Module A: No Sub Type Information	The PCM sets this DTC if data messages from the IPMA through the GWM are missing.

Possible Sources

Communications network concern
IPMA
GWM
PCM

N1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to N2

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.

N2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the IPMA pass the network test?

Yes

GO to N3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

N3 PERFORM IPMA (IMAGE PROCESSING MODULE A) SELF-TEST

Using a diagnostic scan tool, perform a IPMA module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Lane Keeping System (419-07 Lane Keeping System, Diagnosis and Testing).

GO to N4

N4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to N5

N5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to N6

N6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U023A still present?

Yes

GO to N7

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.

N7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 IPMA , GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 N8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

N8 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the IPMA connector(s). 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 IPMA .
REFER to: Interior Rear View Mirror (501-09 Rear View Mirrors, 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 O: U0253:

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	The PCM sets this DTC if data messages from the APIM through the GWM are missing.

Possible Sources

Communications network concern
APIM
GWM
PCM

O1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to O2

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.

O2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the APIM pass the network test?

Yes

GO to O3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

O3 PERFORM APIM (SYNC MODULE) MODULE SELF-TEST

Using a diagnostic scan tool, perform a APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information, Diagnosis and Testing).

GO to O4

O4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to O5

O5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to O6

O6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0253 still present?

Yes

GO to O7

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.

O7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 O8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

O8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the APIM connector(s). 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 APIM .
REFER to: SYNC Module [APIM] (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 P: U0298

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for lost communication.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0298:00	Lost Communication With DC/DC Converter Control Module 'A': No Sub Type Information	The PCM sets this DTC if data messages from the DC/DC Converter Control Module through the GWM are missing.

Possible Sources

Communications network concern
DC/DC Converter Control Module
GWM
PCM

P1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to P2

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.

P2 CHECK THE COMMUNICATION NETWORK

Using a diagnostic scan tool, perform a network test.

Did the FCIM pass the network test?

Yes

GO to P3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

P3 PERFORM DC/DC CONVERTER CONTROL MODULE SELF-TEST

Using a diagnostic scan tool, perform a DC/DC Converter Control Module self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module (414-05 Voltage Converter/Inverter, Diagnosis and Testing).

GO to P4

P4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve the GWM Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

GO to P5

P5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

Using a diagnostic scan tool, perform the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to PCM DTC Chart in this section.

GO to P6

P6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

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

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Repeat the PCM self-test.

Is DTC U0298 still present?

Yes

GO to P7

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.

P7 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK 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 , DC/DC Converter Control Module, GWM or PCM . If recent service history is found:
- verify correct replacement module was installed
  - HVBOM 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 customer vehicle
  - 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 P8

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

P8 CHECK FOR CORRECT DC/DC CONVERTER CONTROL MODULE OPERATION

Ignition OFF.

Disconnect and inspect the DC/DC converter control module connector(s).

Repair:
- corrosion (install new connector or terminals – clean module pins)
- damaged or bent pins – install new terminals/pins
- pushed-out pins – install new pins as necessary

Reconnect the DC/DC converter control module connector(s). 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 DC/DC converter control module.
REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module (414-05 Voltage Converter/Inverter, 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 Q: U0405, U0412, U0415, U0422, U0423, U0554, U0594, U1011, U01012, U101E, U101F

Normal Operation and Fault Conditions

If the PCM does not receive messages from other modules within a certain time frame the PCM sets a DTC for invalid data.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM U0405:00	Invalid Data Received From Cruise Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the CCM .
PCM U0412:00	Invalid Data Received From Battery Energy Control Module 'A': No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the BECM .
PCM U0415:00	Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the ABS module.
PCM U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the BCM .
PCM U0423:00	Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the IPC control module.
PCM U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the APIM .
PCM U0594:00	Invalid Data Received From Hybrid/EV Powertrain Control Module 'A': No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the SOBDMC .
PCM U1011:00	Invalid Internal Control Module Monitoring Data Received from ECM/PCM: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the PCM .
PCM U1012:00	Invalid Internal Control Module Monitoring Data Received from Anti-Lock Brake System (ABS) Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the ABS module.
PCM U101F:00	Invalid Internal Control Module Monitoring Data Received from Transmission Range Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the TRCM .
PCM U101E:00	Invalid Internal Control Module Monitoring Data Received from Gear Shift Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the GSM .
PCM U102F:00	Invalid Internal Control Module Monitoring Data Received From All Wheel Drive Control Module: No Sub Type Information	The PCM sets this DTC when the PCM receives invalid network data from the AWD control module.

Possible Sources

Suspect Module

Q1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA

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.

PINPOINT TEST R: P1001

Normal Operation and Fault Conditions

303-06 DO

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P1001:00	KOER Not Able to Complete, KOER Aborted: No Sub Type Information	This DTC sets when the KOER self-test does not complete in the time allowed.

Possible Sources

Incorrect self-test procedure
Unexpected response from the self-test monitors
RPM out of specification

R1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)

Place the ingnition switch in the START position.

Using a diagnostic scan tool retieve and and record all Diagnostic Trouble Codes (DTCs).

Repair any self-test or Continuous Memory Diagnostic Trouble Codes (CMDTCs) and clear the DTC(s).

Rerun the KOER self test.

Did DTC P1001 return?

Yes

GO to R2

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.

R2 REPROGRAM THE PCM (POWERTRAIN CONTROL MODULE)

Reprogram the PCM with the latest software.
REFER to: Module Programming (418-01 Module Configuration, General Procedures).

Rerun the KOER self test.

Did DTC P1001 return?

Yes

VIN required to access Guided Routine (PCM)

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.

PINPOINT TEST S: P166A

Normal Operation and Fault Conditions

REFER to: Engine - Overview (303-01C Engine, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P166A:00	Restraints Deployment Communication Circuit: No Sub Type Information	This DTC sets when the PCM detects an open or short in the IES circuit.

Possible Sources

BCM
Wiring, terminals or connectors

S1 DIAGNOSE THE CONCERN USING THE PC/ED (POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS) MANUAL

Diagnose the concern using the PC/ED manual pinpoint test.

Did the diagnosis in PC/ED instruct to install a new BCM ?

Yes

INSTALL a new BCM. Refer to the appropriate Removal and Installation procedure in Section 419-10.

No	Concern was resolved usingPC/ED manual pinpoint test.

PINPOINT TEST T: P1A0C

Refer to Wiring Diagrams Cell 25 for schematic and connector information.

Normal Operation and Fault Conditions

Informational diagnostic trouble codes (DTCs) are the result of a limited operating strategy (LOS) or a failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of the PCM , TCM , BECM or a component concern is present.

The circuit diagnostic trouble codes (DTCs) can be accompanied by the informational diagnostic trouble codes (DTCs) and sould be diagnosed first. An informational DTC without a circuit DTC may or may not indicate the actual concern and should be diagnosed as a symptom.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P1A0C:00	Hybrid Powertrain Control Module - Engine Disabled: No Sub Type Information	An informational DTC that sets in the PCM when the failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of the PCM , TCM , BECM or a component concern is present.

Possible Sources

Air leak between the MAF sensor and the electronic throttle body (ETB)
TP sensor not seated properly
Powertrain or hybrid electric system
PCV system
MAF sensor
Throttle position sensor
EVAP purge valve stuck open

WARNING: To prevent the risk of high-voltage shock, always follow precisely all warnings and service instructions, including instructions to depower the system. The high-voltage system utilizes approximately 450 volts DC, provided through high-voltage cables to its components and modules. The high-voltage cables and wiring are identified by orange harness tape or orange wire covering. All high-voltage components are marked with high-voltage warning labels with a high-voltage symbol. Failure to follow these instructions may result in serious personal injury or death.

T1 CHECK FOR THE PRESENCE OF ANY DIAGNOSTIC TROUBLE CODES (DTCS) OTHER THAN THE INFORMATIONAL DTC (DIAGNOSTIC TROUBLE CODE)

Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs)

Are there any PCM diagnostic trouble codes (DTCs) other than PCM DTC P1A0C or SOBDMC P1A0C?

Yes

Disregard the current DTC at this time.

GO to T2

T2 ENTER ENGINE RUNNING DIAGNOSTIC MODE

Place the vehicle in PARK.

Push the start button to enter the ACCESSORY mode.

Press the brake pedal and accellerator pedal together for 5 seconds.

NOTE: Steps 4 and 5 should be performed within 15 seconds after completing Step 3. Release the accellerator and brake pedals.

Press the brake pedal and push the start button so that the vehicle is in drivable state.

Press the brake pedal and accellerator pedal together for 5 seconds.

NOTE: The READY TO DRIVE or DRIVE symbol should be flashing on the instrument cluster at a regular interval when the Engine Running diagnostic mode is active.The READY TO DRIVE or DRIVE symbol should be flashing on the instrument cluster at a regular interval when the Engine Running diagnostic mode is active. Allow the engine to run at idle for 1 minute.

Does the engine run for at least one minute

Yes

CARRY OUT a complete OBD drive cycle.
REFER to: Electronic Engine Controls - System Operation and Component Description (303-14C Electronic Engine Controls, Description and Operation).
CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T3

T3 CHECK THE INTAKE AIR SYSTEM FOR LEAKS, OBSTRUCTIONS OR DAMAGE

Ignition OFF.

Check the intake air system for the following:
- obstructed or blocked air cleaner, housing and tubes
- broken or loose air outlet tube clamps, cracks or holes in the air outlet tube
- worn gaskets between the MAF / IAT sensor and the air cleaner assembly
- loose or disconnectedMAF / IAT sensor connector
- electronic throttle body (ETB) sludge

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T4

T4 CHECK THE VPWR PID (PARAMETER IDENTIFICATION)

Using the diagnostic scan tool, view PCM Parameter Identifications (PIDs).

Access the PCM and monitor the VPWR (V) PID

Is the PID value between 10.5 and 17 V?

Yes

GO to T5

No	REFER to: Powertrain Control Module (PCM) Input and Output Controls (303-14C Electronic Engine Controls, Diagnosis and Testing). Pinpoint Test PPT B

T5 CHECK THE FUEL LEVEL

Using the diagnostic scan tool, view PCM Parameter Identifications (PIDs).

Access the PCM and monitor the FLI (%) PID

Is the PID value greater than 15%?

Yes

GO to T6

No	ADD fuel to the fuel tank until the PID exceeds 15%. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

T6 CHECK THE ENGINE OIL LEVEL

Park the vehicle on level ground.

Ignition OFF.

Check the engine oil level.

Is the engine oil level correct?

Yes

GO to T7

No	REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

T7 INSPECT THE ELECTRONIC THROTTLE BODY (ETB)

Inspect the electronic throttle body (ETB) for damaged housing, harness connector or harness.

Inspect for crossed throttle actuator control module (TACM) circuit wiring in the electronic throttle body (ETB) connector.

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T8

T8 INSPECT THE PCV (POSITIVE CRANKCASE VENTILATION) VALVE

Inspect the PCV valve, hoses and connections for leaks and restrictions.

Verify the PCV valve part number is correct.

Verify the PCV valve is clean.

Verify the fresh air tube and related hoses are clean and routed correctly.

Disconnect the PCV valve and shake the valve to verify it rattles when shaken.

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T9

T9 INSPECT THE SECONDARY IGNITION SYSTEM

Inspect the ignition coils to make sure they are correctly connected.

Inspect the wiring harness and connectors for damage.

Make sure the vehicle battery is in good condition and all accessories are turned off.

Remove and inspect the spark plugs for damage, wear, carbon tracking or deposits and correct plug gap.
REFER to: Spark Plugs (303-07C Engine Ignition, Removal and Installation).

Inspect the coil boots for holes, splits or white discolorations that could indicate arcing.

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T10

T10 CHECK FOR RESTRICTIONS IN THE EXHAUST SYSTEM

Ignition OFF.

Check the following for damage or restrictions:
- front and rear exhaust pipes
- catalytic converter
- muffler and tailpipe assembly

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

GO to T11

T11 CHECK THE FUEL SYSTEM

Ignition OFF.

Relieve the fuel pressure.
REFER to: Fuel System Pressure Release (310-00C Fuel System - General Information, General Procedures).

Connect a mechanical fuel gauge.

KOEO

Pressurize the fuel pressure.
REFER to: Fuel System Pressure Release (310-00C Fuel System - General Information, General Procedures).

Cycle the ignition several times to charge the fuel system.

Is the fuel system pressure greater than 240 kPa (35 psi)?

Yes

GO to T12

No	REFER to: Fuel Tank and Lines (310-01C Fuel Tank and Lines, Diagnosis and Testing). Pinpoint Test HC

T12 CHECK THE EVAP (EVAPORATIVE EMISSION) SYSTEM FOR A STUCK OPEN EVAP (EVAPORATIVE EMISSION) PURGE VALVE

Disconnect the fuel vapor to intake manifold line at the EVAP purge valve and cap the line at the EVAP purge valve.

KOER

Does the engine start and maintain idle?

Yes

REFER to: Evaporative Emissions (303-13C Evaporative Emissions, Diagnosis and Testing).
Pinpoint Test HX FOLLOW the symptoms without diagnostics trouble codes (DTCs) diagnosis.

GO to T13

T13 CHECK THE TRANSMISSION FLUID LEVEL

Check the transmission fluid level.
REFER to: Transmission Fluid Level Check (307-01B Automatic Transmission - Automatic Transmission – HF45, General Procedures).

Is a concern present?

Yes

REPAIR as necessary. CLEAR the PCM and SOBDMC diagnostic trouble codes (DTCs). REPEAT the self-test.

No	REFER to: Powertrain Control Module (PCM) Input and Output Controls (303-14C Electronic Engine Controls, Diagnosis and Testing). Pinpoint Test Z

PINPOINT TEST QA: UNABLE TO ACTIVATE SELF-TEST/NETWORK COMMUNICATION ERROR

Introduction

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P0602:00	Powertrain Control Module Programming Error: No Sub Type Information	Sets when the PCM detects a programming error within the vehicle identification (VID) block.
PCM P0604:00	Internal Control Module Random Access Memory (RAM) Error: No Sub Type Information	Sets when the PCM detects the RAM is corrupt. Reprogram or update the calibration. Check for other Diagnostic Trouble Codes (DTCs) or drive symptoms for further action. Check for aftermarket performance products.
PCM P0605:00	Internal Control Module Read Only Memory (ROM) Error: No Sub Type Information	Sets when the PCM detects the ROM is corrupt. Reprogram the vehicle identification block. Check for other Diagnostic Trouble Codes (DTCs) or drive symptoms for further action. Check for aftermarket performance products. Refer to Flash EEPROM , Programming the (VID) Block for a Replacement PCM .
PCM P0606:00	Control Module Processor: No Sub Type Information	Sets when the PCM detects an internal communication error. Reprogram or update the calibration. Check for other Diagnostic Trouble Codes (DTCs) and diagnose those first. Check for aftermarket performance products. Clear the Diagnostic Trouble Codes (DTCs), repeat the self-test.
PCM P0607:00	Control Module Performance: No Sub Type Information	Sets when the PCM detects the internal central processing unit (CPU) encounters an error. The PCM monitors itself and carries out internal checks of its own CPU. This DTC sets if any of these checks returns an incorrect value. Reprogram or update the calibration. Check for other Diagnostic Trouble Codes (DTCs) and diagnose those first. Check for aftermarket performance products. Clear the Diagnostic Trouble Codes (DTCs), repeat the self-test.
PCM P0610:00	Control Module Vehicle Options Error: No Sub Type Information	Sets when the PCM detects one or more of the PCM VID Block fields are configured incorrectly. Reprogram or update the calibration. Check for other Diagnostic Trouble Codes (DTCs) or drive symptoms for further action. Check for aftermarket performance products.
PCM P061E:00	Internal Control Module Brake Signal Performance: No Sub Type Information	Sets when the PCM detects an incorrect BPP sensor signal is received by the PCM . This DTC also sets when an internal PCM communication error occurs in the PCM . Check for an incorrectly adjusted BPP sensor. Refer to section 417-01, Exterior Lighting. Check for other DTCs and diagnose those first. Check for aftermarket performance products. Clear the Diagnostic Trouble Codes (DTCs), repeat the self-test.
PCM P062F:00	Internal Control Module EEPROM Error: No Sub Type Information	Sets when the PCM detects the read only memory (ROM) is corrupt. Check for other Diagnostic Trouble Codes (DTCs) and diagnose those first. Check for aftermarket performance products. Reprogram or update the calibration. Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test. If the DTC is retrieved again, carry out the passive PATS parameter reset. Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.
PCM P0630:00	VIN Not Programmed or Incompatible - ECM/PCM: No Sub Type Information	Sets when the PCM detects various VID data that is out of a specified acceptable range. The PCM did not receive a valid vehicle identification number (VIN) during reprogramming. Check for all other module Diagnostic Trouble Codes (DTCs) or related symptoms. Diagnose all other module Diagnostic Trouble Codes (DTCs) before diagnosing this DTC . Reprogram the BCM , instrument cluster, and PCM using as built data. Refer to Flash EEPROM , Programming The VID Block For A Replacement PCM , to reprogram the PCM .
PCM P064F:00	Unauthorized Software/Calibration Detected: No Sub Type Information	Sets when the PCM detects an unauthorized calibration.
PCM P160A:00	Control Module Vehicle Options Reconfiguration Error: No Sub Type Information	Sets when the PCM detects a mismatch in configuration data and programmable parameters between the PCM and BCM . Reprogram or update the calibration. If the PCM already has the latest calibration, carry out the relearn vehicle data procedure on the scan tool. Check for other Diagnostic Trouble Codes (DTCs) or drive symptoms for further action.
PCM P161C:00	Automatic Engine Shutdown Mismatch with Vehicle Configuration: No Sub Type Information	Sets when the IPC detects a mismatch in configuration data and programmable parameters between the PCM and the IPC .
PCM P1635:00	Tire/Axle Out of Acceptable Range: No Sub Type Information	Sets when the PCM detects the tire and axle information contained in the vehicle identification (VID) block does not match the vehicle hardware. Using the scan tool, view the tire and axle parameters within the VID block. They must match the vehicle hardware.
PCM P1639:00	Vehicle ID Block Corrupted, Not Programmed: No Sub Type Information	Sets when the PCM detects the VID block is not programmed or the information within is corrupt. Program the PCM to the most recent calibration available. The VID block must be programmed. Refer to Flash EEPROM , Making Changes to the VID Block.
PCM P1935:00	Brake Switch/Sensor Signal: No Sub Type Information	Sets when the PCM does not receive the ABS message within the defined amount of time. The PCM continuously monitors the CAN for messages from the ABS module. Check for other ABS Diagnostic Trouble Codes (DTCs) or ABS related symptoms. Diagnose all other ABS Diagnostic Trouble Codes (DTCs) or ABS related symptoms first.
PCM P264F:00	Engine Serial Number Not Programmed or Incompatible: No Sub Type Information	Sets when the PCM does not receive a valid engine serial number during reprogramming. The VID block must be programmed. Refer to Flash EEPROM , Programming VID Block. If the PCM does not allow reprogramming of the VID block, reflashing of the PCM is required.
PCM U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets when the PCM detects a programming error within the vehicle identification (VID) block. Program the VID block. Refer to Flash EEPROM , Making Changes to the VID Block. If the PCM does not allow reprogramming of the VID block, reflashing of the PCM is required.
PCM U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets when the PCM detects the RAM is corrupt. Reprogram or update the calibration. Check for other Diagnostic Trouble Codes (DTCs) or drive symptoms for further action. Check for aftermarket performance products. Refer to Flash EEPROM , Programming the VID Block for a replacement PCM .
PCM U2200:00	Control Module Configuration Memory Corrupt: No Sub Type Information	Sets when the PCM detects a programming error within the vehicle identification (VID) block. Program the VID block. Refer to Flash EEPROM , Making Changes to the VID Block. If the PCM does not allow reprogramming of the VID block, reflashing of the PCM is required.

Possible Sources

Network communication concern
PCM

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Locating the Under Hood Fuse Box

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Accessing the Under Hood Fuse Box

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Pull the latch toward you and remove the top cover.

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