Ford Escape 2020-2024 Service Manual / Electrical / Climate Control System / Climate Control System - General Information / Diagnosis and Testing - Climate Control System - Vehicles With:
Dual Automatic Temperature Control (DATC)/Electronic Automatic
Temperature Control (EATC)
Ford Escape: Climate Control System - General Information / Diagnosis and Testing - Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC)/Electronic Automatic Temperature Control (EATC)
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).
NOTE: Network communication or missing network DTCs may result from intermittent concerns, such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures may set these DTCs. To avoid repeat network concerns, follow all Workshop Manual (WSM) guidance for the code. Test the vehicle battery.
Diagnostic Trouble Code Chart
| Module | DTC | Description | Action |
|---|---|---|---|
| ACCM | B11EE:19 | A/C Compressor: Circuit Current Above Threshold | GO to Pinpoint Test AA |
| ACCM | B11EE:41 | A/C Compressor: General Checksum Failure | GO to Pinpoint Test AI |
| ACCM | B11EE:4B | A/C Compressor: Over Temperature | GO to Pinpoint Test AA |
| ACCM | B11EE:92 | A/C Compressor: Performance or Incorrect Operation | GO to Pinpoint Test AA |
| ACCM | P0562:00 | System Voltage Low: No Sub Type Information | GO to Pinpoint Test AA |
| ACCM | P0563:00 | System Voltage High: No Sub Type Information | GO to Pinpoint Test AA |
| ACCM | P0AFA:16 | Hybrid/EV Battery System Voltage Low: Circuit Voltage Below Threshold | GO to Pinpoint Test AA |
| ACCM | P0AFB:17 | Hybrid/EV Battery System Voltage High: Circuit Voltage Above Threshold | GO to Pinpoint Test AA |
| ACCM | P0AFB:1C | Hybrid/EV Battery System Voltage High: Circuit Voltage Out of Range | GO to Pinpoint Test AA |
| ACCM | U0001:88 | High Speed CAN Communication Bus: Bus Off | GO to Pinpoint Test AF |
| ACCM | U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | GO to Pinpoint Test AB |
| ACCM | U0111:00 | Lost Communication With Battery Energy Control Module "A": No Sub Type Information | GO to Pinpoint Test AC |
| ACCM | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test P |
| ACCM | U3000:04 | Control Module: System Internal Failure | GO to Pinpoint Test AI |
| ACCM | U3000:42 | Control Module: General Memory Failure | GO to Pinpoint Test AI |
| ACCM | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AI |
| BCMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AJ |
| BCMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AJ |
| BCMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AJ |
| HVAC | B1081:07 | Left Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test G |
| HVAC | B1081:11 | Left Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B1081:12 | Left Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test G |
| HVAC | B1081:13 | Left Temperature Damper Motor: Circuit Open | GO to Pinpoint Test G |
| HVAC | B1082:07 | Right Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test H |
| HVAC | B1082:11 | Right Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B1082:12 | Right Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test H |
| HVAC | B1082:13 | Right Temperature Damper Motor: Circuit Open | GO to Pinpoint Test H |
| HVAC | B1083:07 | Recirculation Damper Motor: Mechanical Failure | GO to Pinpoint Test I |
| HVAC | B1083:11 | Recirculation Damper Motor: Circuit Short To Ground | GO to Pinpoint Test I |
| HVAC | B1083:12 | Recirculation Damper Motor: Circuit Short To Battery | GO to Pinpoint Test I |
| HVAC | B1083:13 | Recirculation Damper Motor: Circuit Open | GO to Pinpoint Test I |
| HVAC | B1086:07 | Air Distribution Damper Motor: Mechanical Failure | GO to Pinpoint Test J |
| HVAC | B1086:11 | Air Distribution Damper Motor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B1086:12 | Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test J |
| HVAC | B1086:13 | Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test J |
| HVAC | B10AF:11 | Blower Fan Relay: Circuit Short To Ground | GO to Pinpoint Test N |
| HVAC | B10AF:12 | Blower Fan Relay: Circuit Short To Battery | GO to Pinpoint Test O |
| HVAC | B10AF:13 | Blower Fan Relay: Circuit Open | GO to Pinpoint Test N |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test N |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test O |
| HVAC | B10B3:11 | Right Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test V |
| HVAC | B10B3:15 | Right Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test V |
| HVAC | B10B4:11 | Right Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test V |
| HVAC | B10B4:15 | Right Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test V |
| HVAC | B10B5:11 | Left Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test V |
| HVAC | B10B5:15 | Left Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test V |
| HVAC | B10B6:11 | Left Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test V |
| HVAC | B10B6:15 | Left Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test V |
| HVAC | B10B8:63 | Push Buttons: Circuit / Component Protection Time-Out | GO to Pinpoint Test Z |
| HVAC | B10B9:12 | Blower Control: Circuit Short To Battery | GO to Pinpoint Test N |
| HVAC | B10B9:14 | Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test N |
| HVAC | B10B9:14 | Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test O |
| HVAC | B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test G |
| HVAC | B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test H |
| HVAC | B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test J |
| HVAC | B11F0:11 | Air Intake Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test I |
| HVAC | B11F0:15 | Air Intake Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test I |
| HVAC | B12CA:11 | Start/Stop "Eco-Start" Status Indicator: Circuit Short To Ground | GO to Pinpoint Test Y |
| HVAC | B12CA:15 | Start/Stop "Eco-Start" Status Indicator: Circuit Short To Battery or Open | GO to Pinpoint Test Y |
| HVAC | B1A61:11 | Cabin Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A61:15 | Cabin Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1A63:11 | Right Solar Sensor: No Sub Type Information | GO to Pinpoint Test U |
| HVAC | B1A63:15 | Right Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test U |
| HVAC | B1A64:11 | Left Solar Sensor: No Sub Type Information | GO to Pinpoint Test U |
| HVAC | B1A64:15 | Left Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test U |
| HVAC | B1A69:11 | Humidity Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A69:15 | Humidity Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1A69:92 | Humidity Sensor: Performance or Incorrect Operation | GO to Pinpoint Test E |
| HVAC | B1B71:11 | Evaporator Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test F |
| HVAC | B1B71:15 | Evaporator Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test F |
| HVAC | C1B14:11 | Sensor Supply Voltage A: Circuit Short to Ground | GO to Pinpoint Test X |
| HVAC | C1B14:12 | Sensor Supply Voltage A: Circuit Short to Battery | GO to Pinpoint Test X |
| HVAC | U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | GO to Pinpoint Test AB |
| HVAC | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test P |
| HVAC | U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | GO to Pinpoint Test Q |
| HVAC | U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub-Type Information | GO to Pinpoint Test R |
| HVAC | U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | GO to Pinpoint Test S |
| HVAC | U0401:00 | Invalid Data Received from ECM/PCM A: No Sub-Type Information | GO to Pinpoint Test AG |
| HVAC | U0401:82 | Invalid Data Received from ECM/PCM A: Alive / Sequence Counter Incorrect / Not Updated | GO to Pinpoint Test AG |
| HVAC | U0422:68 | Invalid Data Received from Body Control Module: Event Information | GO to Pinpoint Test AG |
| HVAC | U0422:81 | Invalid Data Received from Body Control Module: Invalid Serial Data Received | GO to Pinpoint Test AG |
| HVAC | U0452:82 | Invalid Data Received From Restraints Control Module: Alive / Sequence Counter Incorrect / Not Updated | GO to Pinpoint Test AG |
| HVAC | U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | GO to Pinpoint Test T |
| HVAC | U2024:51 | Control Module Cal-Config Data: Not Programmed | GO to Pinpoint Test AH |
| HVAC | U2100:00 | Initial Configuration Not Complete: No Sub Type Information | GO to Pinpoint Test AH |
| HVAC | U3000:41 | Control Module: General Checksum Failure | GO to Pinpoint Test AI |
| HVAC | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AI |
| HVAC | U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AD |
| HVAC | U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AE |
| PCM | P0532:00 | A/C Refrigerant Pressure Sensor A Circuit Low: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0533:00 | A/C Refrigerant Pressure Sensor A Circuit High: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0645:00 | A/C Clutch Relay Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| PCM | P06A0:00 | Variable Compressor Control Circuit: No Sub Type Information | GO to Pinpoint Test C |
| PCM | P1464:00 | A/C Demand Out Of Self Test Range: No Sub Type Information | GO to Pinpoint Test M |
| PCM | P193E:00 | A/C Clutch Request Signal: No Sub Type Information | GO to Pinpoint Test W |
| PCM | P2183:00 | Engine Coolant Temperature Sensor 2: Circuit Range/Performance | GO to Pinpoint Test AQ |
| PCM | P2184:00 | Engine Coolant Temperature Sensor 2: Circuit Low | GO to Pinpoint Test AQ |
| PCM | P2185:00 | Engine Coolant Temperature Sensor 2: Circuit High | GO to Pinpoint Test AQ |
| PCM | P2186:00 | Engine Coolant Temperature Sensor 2: Circuit Intermittent/Erratic | GO to Pinpoint Test AQ |
| PCM | P2600:00 | Coolant Pump "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2601:00 | Coolant Pump "A" Control Circuit Performance/Stuck Off: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2602:00 | Coolant Pump "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2603:00 | Coolant Pump "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P26BD:00 | Engine Coolant Bypass "D" Control Circuit Open: No Sub Type Information | GO to Pinpoint Test AR |
| PCM | P26BE:00 | Engine Coolant Bypass "D" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AR |
| PCM | P26BF:00 | Engine Coolant Bypass "D" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AR |
| PCM | P26C1:00 | Engine Coolant Bypass "D" Range Performance: No Sub Type Information | GO to Pinpoint Test AR |
| SOBDMC | P01EB:96 | Engine Coolant Heater "A" Control Circuit Performance: Component Internal Failure | GO to Pinpoint Test AP |
| SOBDMC | P0531:00 | A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0534:00 | A/C Refrigerant Charge Loss: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0D6D:00 | A/C Compressor Motor Voltage "A" Low: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P0D6F:00 | A/C Compressor Motor Current High: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P0D71:00 | A/C Compressor Control Module Internal Temperature Sensor Performance: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P26FD:00 | A/C Compressor Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P2D41:00 | A/C Compressor Motor Voltage "B" Performance: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P2D42:00 | A/C Compressor Motor Voltage "B" Low: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P2D44:00 | A/C Compressor Motor Performance: No Sub Type Information | GO to Pinpoint Test AA |
| SOBDMC | P2DA4:00 | Coolant Heater "A" Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AP |
| SOBDMC | P2DA5:00 | Coolant Heater "A" Supply Voltage Circuit: No Sub Type Information | GO to Pinpoint Test AP |
| SOBDMC | P2DA6:00 | Coolant Heater "A" Over Temperature: No Sub Type Information | GO to Pinpoint Test AS |
| SOBDMC | P2DA7:00 | Coolant Heater "A" Internal Control Module Control Module System Voltage: No Sub Type Information | GO to Pinpoint Test AP |
| SOBDMC | U069E:81 | Lost Communication With Coolant Heater "A": Invalid Serial Data Received | GO to Pinpoint Test AP |
| SOBDMC | U069E:87 | Lost Communication With Coolant Heater "A": Missing Messages | GO to Pinpoint Test AP |
Global Customer Symptom Code (GCSC) 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).
| Symptom | Action |
|---|---|
| Comfort & Entertainment > Climate Control > Air Distribution > Inaccurate | GO to Pinpoint Test G |
| Comfort & Entertainment > Climate Control > Air Distribution > Inaccurate | GO to Pinpoint Test H |
| Comfort & Entertainment > Climate Control > Air Distribution > Inaccurate | GO to Pinpoint Test O |
| Comfort & Entertainment > Climate Control > Air Distribution > Inaccurate | GO to Pinpoint Test AN |
| Comfort & Entertainment > Climate Control > Air Distribution > Inoperative | GO to Pinpoint Test N |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Heating | GO to Pinpoint Test K |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Heating | GO to Pinpoint Test AL |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Heating | GO to Pinpoint Test AT |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Cooling | GO to Pinpoint Test C |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Cooling | GO to Pinpoint Test L |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Cooling | GO to Pinpoint Test AM |
| Comfort & Entertainment > Climate Control > Function/Operation > Poor Cooling | GO to Pinpoint Test AU |
| Comfort & Entertainment > Climate Control > Function/Operation > Inoperative | GO to Pinpoint Test G |
| Comfort & Entertainment > Climate Control > Function/Operation > Inoperative | GO to Pinpoint Test H |
| Comfort & Entertainment > Climate Control > Function/Operation > Inoperative | GO to Pinpoint Test N |
| Comfort & Entertainment > Noise > Climate Control > Always | GO to Pinpoint Test AO |
| Safe & Secure > Smoke/Odor > Underhood > Hot | GO to Pinpoint Test AK |
Symptom Charts
Symptom Chart – Climate Control Systems
NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the 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).
| Condition | Actions |
|---|---|
| A module does not respond to the diagnostic scan tool |
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). |
| Externally Controlled Variable Displacement Compressor (EVDC) Performance Check with or without DTC P06A0 | GO to Pinpoint Test C |
| Insufficient Air Conditioning (A/C) cooling | GO to Pinpoint Test AM |
| The A/C is always on — A/C mode always commanded on NON HEV | GO to Pinpoint Test M |
| The A/C is inoperative - No Diagnostic Trouble Codes (DTCs) - NON HEV | GO to Pinpoint Test L |
| The A/C pressure relief valve is discharging | GO to Pinpoint Test AK |
| ACCM A/C ELECTRIC COMPRESSOR INOPERATIVE | GO to Pinpoint Test AA |
| The air inlet door is inoperative | GO to Pinpoint Test I |
| The blower motor is inoperative | GO to Pinpoint Test N |
| The blower motor does not operate correctly | GO to Pinpoint Test O |
| Incorrect or erratic direction of airflow from outlets | GO to Pinpoint Test J |
| Insufficient, erratic or no heat with no diagnostic trouble codes (DTCS) - except plug-in hybrid electric vehicles | GO to Pinpoint Test K |
| Insufficient, erratic or no heat with no diagnostic trouble codes (DTCS) - plug-in hybrid electric vehicles | GO to Pinpoint Test AT |
| Reduced outlet airflow | GO to Pinpoint Test AN |
| The temperature control is inoperative or does not operate correctly – driver side | GO to Pinpoint Test G |
| The temperature control is inoperative or does not operate correctly – passenger side | GO to Pinpoint Test H |
| The electric booster heater is inoperative or does not operate correctly | GO to Pinpoint Test AL |
| A/C System NVH | GO to Pinpoint Test AO |
| Refrigerant leak detection | GO to Pinpoint Test AU |
Pinpoint Tests
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PINPOINT TEST A: P0531, P0532, P0533, P0534.jpg){kind=icon}
PINPOINT TEST A: P0531, P0532, P0533, P0534|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Pressure Transducer, REFER to: Climate Control System - Vehicles
With: Dual Automatic Temperature Control (DATC) - System Operation and
Component Description (412-00 Climate Control System - General
Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
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| A1 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) PRESSURE SENSOR (ACP_PRESS) PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE SET READINGS | ||||||||||||||||||||||||||||||||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range
Are the pressure values of the manifold gauge set and the ACP_PRESS PCM PID , dependent upon the ambient temperatures, within ± 103 kPa (15 psi)?
|
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| A2 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
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| A3 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
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| A4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
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| A5 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
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| A6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
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VIN required to access Guided Routine (PCM)
PINPOINT TEST B: P0645:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions When A/C is requested and A/C line pressures allow, the PCM grounds
the clutch control circuit that is hardwired to the A/C clutch control
input processing in the BCMC . For additional information on A/C
Request, REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
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| B1 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
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| B2 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
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| B3 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||
Is the resistance less than 3 ohms?
|
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| B4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT
TEST C: EXTERNALLY CONTROLLED VARIABLE DISPLACEMENT COMPRESSOR (EVDC)
PERFORMANCE CHECK WITH OR WITHOUT DTC (DIAGNOSTIC TROUBLE CODE)
P06A0|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The externally controlled variable displacement compressor is
electronically controlled by the PCM . The PCM
pulse width modulates the ground to the externally controlled variable
displacement compressor to change the displacement of the A/C
compressor. REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||
| C1 EXTERNALLY CONTROLLED VARIABLE DISPLACEMENT COMPRESSOR (EVDC) PERFORMANCE CHECK WITH THE AC COMPRESSOR ELECTRONIC CONTROL VALVE TESTER | ||||||||||||||||
|
NOTE: Make sure the Air Conditioning (A/C) Compressor clutch is on or is engaged in this step. NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F). NOTE: Make sure the EVDC100 Tester, the EVDC101 valve harness module, (and the connector adapter EVDC102, if required) are properly connected per the instruction manual and the operation video.
Did the suction low side pressure decrease or the high side pressure increase?
|
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| C2 CHECK FOR VOLTAGE TO THE A/C (AIR CONDITIONING) COMPRESSOR CONTROL SOLENOID | ||||||||||||||||
Is the voltage greater than 11 volts?
|
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| C3 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
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| C4 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
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| C5 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR AN OPEN | ||||||||||||||||
Is the resistance less than 3 ohms?
|
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| C6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||
Is the concern still present?
|
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| C7 CHECK AIR CONDITIONING COMPRESSOR CONNECTOR PINS | ||||||||||||||||
Is the concern still present?
|
PINPOINT TEST D: P2600:00, P2601:00, P2602:00, P2603:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin Heater Coolant Pump, REFER to: Climate Control System -
Vehicles With: Dual Automatic Temperature Control (DATC) - System
Operation and Component Description (412-00 Climate Control System -
General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. |
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| D1 CHECK THE ENGINE COOLANT LEVEL | ||||||||||||||||||||||||||||||||||||||||
|
NOTE: Allow the engine to cool before checking the engine coolant level.
Is the coolant level within specifications?
|
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| D2 CHECK FOR AND CLEAR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES AND COMMAND THE CABIN HEATER COOLANT PUMP ON | ||||||||||||||||||||||||||||||||||||||||
Is DTC P2600, P2601, P2602 or P2603 received or is the coolant pump not running?
|
||||||||||||||||||||||||||||||||||||||||
| D3 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||||||||||||||||||
| D4 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| D5 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| D6 CHECK FOR CORRECT CABIN HEATER COOLANT PUMP OPERATION | ||||||||||||||||||||||||||||||||||||||||
Does the cabin heater coolant pump run?
|
||||||||||||||||||||||||||||||||||||||||
| D7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST E: B1A61:11, B1A61;15, B1A69:11, B1A69:15, B1A69:92 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions In-Vehicle Temperature and Humidity Sensor, REFER to: Climate
Control System - Vehicles With: Dual Automatic Temperature Control
(DATC) - System Operation and Component Description (412-00 Climate
Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||||||||||||
| E1 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||
| E2 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||
| E3 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR AN OPEN CIRCUIT | ||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||
| E4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST F: B1B71:11, B1B71:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Evaporator Temperature Sensor, REFER to: Climate Control System -
Vehicles With: Dual Automatic Temperature Control (DATC) - System
Operation and Component Description (412-00 Climate Control System -
General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
|||||||||||||
| F1 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| F2 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F3 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| F4 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST G: THE TEMPERATURE CONTROL IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY - DRIVER SIDE |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Temperature Door Actuator - Driver Side, REFER to: Climate Control
System - Vehicles With: Dual Automatic Temperature Control (DATC) -
System Operation and Component Description (412-00 Climate Control
System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature blend door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||||||
| G1 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G2 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| G3 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| G4 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| G6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST H: THE TEMPERATURE CONTROL IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY - PASSENGER SIDE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Temperature Door Actuator - Passenger Side, REFER to: Climate
Control System - Vehicles With: Dual Automatic Temperature Control
(DATC) - System Operation and Component Description (412-00 Climate
Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
|||||||||||||||||||||||||
| H1 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H2 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| H3 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| H4 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H5 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| H6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST I: THE AIR INLET DOOR IS INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Door Actuator – Air Inlet Door, REFER to: Climate Control System -
Vehicles With: Dual Automatic Temperature Control (DATC) - System
Operation and Component Description (412-00 Climate Control System -
General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the air inlet mode door until the door reaches both internal stops in the HVAC case. If the air inlet mode door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the air intake may not be from the expected source. DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||||||
| I1 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| I2 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| I3 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| I4 CHECK THE AIR INLET DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| I5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| I6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST J: INCORRECT OR ERRATIC DIRECTION OF AIRFLOW FROM OUTLETS|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). During an actuator calibration cycle, the HVAC control module drives the defrost vent door and the footwell vent/register door until the doors reach both internal stops in the HVAC case. If the defrost vent door or the footwell vent/register door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be from the expected outlets. DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||||||
| J1 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J2 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| J3 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| J4 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| J6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT
TEST K: INSUFFICIENT, ERRATIC OR NO HEAT WITH NO DIAGNOSTIC TROUBLE
CODE (DTCS) - EXCEPT PLUG-IN ELECTRIC HYBRID VEHICLES|
Normal Operation and Fault Conditions When the engine is at operating temperature hot coolant primarily flows from the engine through the heater core and back to the engine. Correct coolant temperatures are critical for good heater performance. A restriction of coolant flow due to a transmission fluid heater coolant control valve (if equipped), or a cabin heater coolant pump (if equipped), may cause poor coolant flow to the heater core. Possible Sources
Visual Inspection and Pre-checks
|
||||
| K1 CHECK FOR CORRECT ENGINE COOLANT LEVEL | ||||
Is the engine coolant at the correct level (hot or cold) as indicated on the engine coolant recovery reservoir?
|
||||
| K2 CHECK THE ENGINE COOLING SYSTEM FOR LEAKS | ||||
Does the cooling system leak?
|
||||
| K3 CHECK FOR COOLANT FLOW TO THE HEATER CORE | ||||
Is the heater core inlet hose temperature above 65.5°C (150°F)?
|
||||
| K4 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature [within approximately 6-17°C (10-30°F)]?
|
||||
| K5 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE RETURN LOOP | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature [within approximately 6-17°C (10-30°F)]?
|
PINPOINT TEST L: THE A/C (AIR CONDITIONING)
IS INOPERATIVE - NO DIAGNOSTIC TROUBLE CODES (DTCS) - NON HEV (HYBRID ELECTRIC VEHICLE)
|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions When an A/C request is received by the PCM , the A/C clutch is engaged when all of the following conditions are met:
For more information on A/C Request, REFER to: Climate Control
System - Vehicles With: Dual Automatic Temperature Control (DATC) -
System Operation and Component Description (412-00 Climate Control
System - General Information, Description and Operation). Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the Diagnostic Trouble Code (DTC) Chart. |
||||||||||||||||||||||||||||||||
| L1 VERIFY THE AIR CONDITIONING (A/C) CLUTCH OPERATION | ||||||||||||||||||||||||||||||||
Does the A/C compressor clutch engage?
|
||||||||||||||||||||||||||||||||
| L2 RESET THE AMBIENT AIR TEMPERATURE (AAT) SENSOR | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| L3 CHECK THE A/C (AIR CONDITIONING) SYSTEM PRESSURE | ||||||||||||||||||||||||||||||||
|
NOTE: Static refrigerant pressure, under perfect conditions, should approximately reflect ambient air temperature. Do not rely upon the static refrigerant pressure alone to determine if the system is properly charged. Refer to the current Ford Web Based Technical Training courses for basic HVAC system refrigerant operation.
Is the A/C system pressure above 290 kPa (42 psi)?
|
||||||||||||||||||||||||||||||||
| L4 CHECK THE COMMUNICATION NETWORK | ||||||||||||||||||||||||||||||||
Do the HVAC control module and the PCM pass the network test?
|
||||||||||||||||||||||||||||||||
| L5 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) PRESSURE SENSOR (ACP_PRESS) PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the ACP_PRESS PCM PID , dependent upon ambient temperatures, within ± 103 kPa (15 psi)?
|
||||||||||||||||||||||||||||||||
| L6 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE (EVAP_TEMP) PARAMETER IDENTIFICATION (PID) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||||||||||||
Are the temperature values similar [typically within 18ºC or 30ºF of each other]?
|
||||||||||||||||||||||||||||||||
| L7 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) INTAKE AIR TEMPERATURE (IAT) PARAMETER IDENTIFICATION (PID) AND THE OTHER TEMPERATURE SENSOR READINGS TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||||||||||||
|
NOTE: Compare multiple engine sensor readings to the ambient temperature to determine sensors are reading correctly. A faulty sensor can cause the Powertrain Control Module (PCM) to disable the Air Conditioning (A/C) with or without a Diagnostic Trouble Code (DTC).
Are the temperature values similar [typically within 18ºC or 30ºF of each other]?
|
||||||||||||||||||||||||||||||||
| L8 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH (CC_SW_AC) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display ON or Yes when the button is pressed?
|
||||||||||||||||||||||||||||||||
| L9 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display ON or Yes when the button is pressed?
|
||||||||||||||||||||||||||||||||
| L10 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) COMPRESSOR COMMANDED STATE (ACC_CMD) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) COMMANDED ON | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| L11 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L12 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L13 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L14 CHECK THE AIR CONDITIONING CLUTCH RELAY OPERATION | ||||||||||||||||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||
| L15 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH AIR GAP | ||||||||||||||||||||||||||||||||
Is the A/C compressor clutch air gap greater than 0.6 mm (0.0236 in)?
|
||||||||||||||||||||||||||||||||
| L16 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||||||||||||
| L17 CHECK FOR AN INPUT DISABLING THE A/C (AIR CONDITIONING) CLUTCH RELAY | ||||||||||||||||||||||||||||||||
|
NOTE: The Powertrain Control Module (PCM) strategy may disable the Air Conditioning (A/C) compressor operation. If the A/C compressor clutch can be commanded on using a diagnostic scan tool Powertrain Control Module (PCM) Parameter Identifications (PIDs) Active Commands, Powertrain Control Module (PCM) replacement will not resolve the condition.
Are any of the conditions described above not within normal parameters?
|
PINPOINT TEST M: THE A/C (AIR CONDITIONING)
IS ALWAYS ON — A/C (AIR CONDITIONING)
MODE ALWAYS COMMANDED ON - NON HEV (HYBRID ELECTRIC VEHICLE)
|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Request, REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||
| M1 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||
Does DTC P1464 return?
|
||||||||||
| M2 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| M3 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE (EVAP_TEMP) PID (PARAMETER IDENTIFICATION) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PID (PARAMETER IDENTIFICATION) | ||||||||||
Are the temperature values similar (typically within 18ºC (32.4ºF))?
|
||||||||||
| M4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR (ACP_PRESS) PARAMETER IDENTIFICATION (PID) | ||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the ACP_PRESS PCM PID , dependent upon ambient temperature, within ± 103 kPa (15 psi)?
|
||||||||||
| M5 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH STATUS (CC_SW_AC) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display On when the A/C button is pressed and Off when released?
|
||||||||||
| M6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display OFF?
|
||||||||||
| M7 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) WITH THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DISCONNECTED | ||||||||||
Does the PID display OFF?
|
||||||||||
| M8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
||||||||||
| M9 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST N: THE BLOWER MOTOR IS INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||
| N1 CHECK THE BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||
| N2 CHECK THE BLOWER MOTOR RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||
|
NOTE: Some vehicles may be equipped with a diode in the blower motor relay coil ground circuit. Make sure the multimeter leads are correctly attached during testing or a false reading will occur causing misdiagnosis of the circuit. For additional information, refer to the Wiring Diagrams manual.
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| N3 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| N4 CHECK FOR VOLTAGE TO THE BLOWER MOTOR CONTROL MODULE | ||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||
| N5 CHECK THE BLOWER MOTOR CONTROL MODULE GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| N6 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||
| N7 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| N8 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||
| N9 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST O: THE BLOWER MOTOR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - Vehicles With: Dual
Automatic Temperature Control (DATC) - System Operation and Component
Description (412-00 Climate Control System - General Information,
Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||
| O1 VERIFY THE BLOWER MOTOR OPERATION | ||||||||||||
Does the blower motor operate at any setting?
|
||||||||||||
| O2 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO GROUND | ||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||
| O3 CHECK THE BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||
Is any voltage present?
|
||||||||||||
| O4 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||
Is any voltage present?
|
||||||||||||
| O5 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||||
Is the concern still present?
|
||||||||||||
| O6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||
Is the concern still present?
|
PINPOINT TEST P: U0140:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM and the HVAC control module communicate with the BCM over
the CAN . If messages are missing or not received from the BCM , the
climate control system may not operate not operate correctly. REFER to:
Climate Control System - Vehicles With: Dual Automatic Temperature
Control (DATC) - System Operation and Component Description (412-00
Climate Control System - General Information, Description and
Operation). Inspect for loose or corroded BCM and HVAC control module connections. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| P1 VERIFY THE CONCERN | |||||||||
Is an observable symptom present?
|
|||||||||
| P2 CHECK THE NETWORK COMMUNICATION | |||||||||
Does the BCM pass the network test?
|
|||||||||
| P3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| P4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| P5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 | |||||||||
Is DTC U0140:00 still present?
|
|||||||||
| P6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | |||||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is the observable symptom still present?
|
|||||||||
| P7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST Q: U0151:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
REFER to: Climate Control System - Vehicles With: Dual Automatic
Temperature Control (DATC) - System Operation and Component Description
(412-00 Climate Control System - General Information, Description and
Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| Q1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| Q2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the RCM pass the network test?
|
||||||
| Q3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINTS CONTROL MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| Q4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| Q5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0151:00 still present?
|
||||||
| Q6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00 SET IN OTHER MODULES | ||||||
Is DTC U0151:00 set in other modules on the network?
|
||||||
| Q7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| Q8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST R: U0155:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions With the ignition ON, the IPC sends messages to the HVAC control
module over the MS-CAN . If the HVAC control module does not receive
these messages within the specified time frame, the module sets a DTC .
This can be due to an IPC failure, a circuit failure on the MS-CAN or an
excessive load on the network. For information on the messages sent to
the HVAC control module by the IPC , REFER to: Climate Control System -
Vehicles With: Dual Automatic Temperature Control (DATC) - System
Operation and Component Description (412-00 Climate Control System -
General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| R1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| R2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the IPC pass the network test?
|
||||||
| R3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| R4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| R5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0155:00 still present?
|
||||||
| R6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00 SET IN OTHER MODULES | ||||||
Is DTC U0155:00 set in other modules on the network?
|
||||||
| R7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION | ||||||
Is the concern still present?
|
||||||
| R8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST S: U0253:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - Vehicles With:
Dual Automatic Temperature Control (DATC) - System Operation and
Component Description (412-00 Climate Control System - General
Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| S1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| S2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the APIM pass the network test?
|
||||||
| S3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE APIM (SYNC MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| S4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| S5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0253:00 still present?
|
||||||
| S6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00 SET IN OTHER MODULES | ||||||
Is DTC U0253:00 set in other modules on the network?
|
||||||
| S7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| S8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST T: U1000:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - Vehicles With:
Dual Automatic Temperature Control (DATC) - System Operation and
Component Description (412-00 Climate Control System - General
Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| T1 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is U1000:00 present?
|
PINPOINT TEST U: B1A63:11, B1A63:15, B1A64:11, B1A64:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The sunload sensor supplies information to the HVAC control module
indicating the sunload intensity on the vehicle and the HVAC control
module adjusts the system based on that information. REFER to: Climate
Control System - Vehicles With: Dual Automatic Temperature Control
(DATC) - System Operation and Component Description (412-00 Climate
Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
|||||||||||||||||||||||||
| U1 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| U2 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| U3 CHECK THE SUNLOAD SENSOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| U4 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| U5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST V: B10B3:11, B10B3:15, B10B4:11, B10B4:15, B10B5:11, B10B5:15, B10B6:11, B10B6:15 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The air discharge sensors supply a varying voltage to the HVAC control module based on the temperature of the air being discharged from the vent. The HVAC control module adjusts the system based on the voltage from each sensor. Each air discharge sensor is supplied voltage from the HVAC
control module and all sensors share a common sensor ground. An open, a
short to ground, a short to voltage on one or more of these circuits or
a failed air discharge sensor causes the HVAC control module to set one
or more Diagnostic Trouble Codes (DTCs). REFER to: Climate Control
System - Vehicles With: Dual Automatic Temperature Control (DATC) -
System Operation and Component Description (412-00 Climate Control
System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. |
||||||||||||||||||||||||||||||||||||||||||||||
| V1 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR OUTPUT VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||
Are the voltages between 4.7 and 5.1 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||
| V2 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||||||
| V3 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| V4 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| V5 CHECK AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO TOGETHER | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| V6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST W: P193E|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The PCM controls the A/C compressor clutch field coil based on
messages received from the BCM over the HS-CAN . When the HVAC control
module determines it is necessary to activate the A/C compressor, either
due to driver request or due to automatic climate control settings, the
HVAC control module sends a message to the BCM over the MS-CAN , the
BCM then sends a message to the PCM to activate the A/C compressor.
REFER to: Climate Control System - Vehicles With: Dual Automatic
Temperature Control (DATC) - System Operation and Component Description
(412-00 Climate Control System - General Information, Description and
Operation). An internal failure of the PCM , BCM or HVAC control module; or a failure in the MS-CAN or HS-CAN causes the PCM to set a DTC . DTC Fault Trigger Conditions
Possible Sources
|
||||||
| W1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| W2 CHECK THE COMMUNICATION NETWORK | ||||||
Do the BCM , PCM and the HVAC control module pass the network test?
|
||||||
| W3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) | ||||||
Does the AC_REQ PID display YES when the A/C button indicator is illuminated?
|
||||||
| W4 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH (CC_SW_AC) PID (PARAMETER IDENTIFICATION) | ||||||
Does the PID display ON when the A/C button indicator is illuminated?
|
||||||
| W5 VERIFY CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| W6 VERIFY CORRECT BCM (BODY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| W7 VERIFY CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST X: C1B14:11, C1B14:12|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Reference voltage is supplied to the climate control actuators and one sensor from the HVAC control module on one common circuit and the signal returns to the HVAC control module on one common circuit. All components that share these two circuits are listed in this pinpoint test. Access to these components are difficult. DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. |
|||||||||||||
| X1 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||||||
Is DTC C1B14:11 or C1B14:12 present?
|
|||||||||||||
| X2 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| X3 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||
| X4 CHECK THE REFERENCE VOLTAGE CIRCUIT AND THE SIGNAL RETURN CIRCUIT FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 200 ohms?
|
|||||||||||||
| X5 CHECK THE A/C (AIR CONDITIONING) COMPONENTS | |||||||||||||
Did the resistance rise above 200 ohms?
|
|||||||||||||
| X6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST Y: B12CA:11, B12CA:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The instrument panel console switch assembly - auto start-stop
deactivation switch, REFER to: Climate Control System - Vehicles With:
Dual Automatic Temperature Control (DATC) - System Operation and
Component Description (412-00 Climate Control System - General
Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. |
|||||||||||||||||||
| Y1 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||
| Y2 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||
| Y3 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR AN OPEN | |||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||
| Y4 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||
| Y5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST Z: B10B8:63 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Climate control system buttons held too long may set this DTC . DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. |
||||||
| Z1 CLEAN HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE BUTTONS | ||||||
Is the concern still present?
|
||||||
| Z2 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AA:
ACCM (AIR CONDITIONING CONTROL MODULE)
A/C (AIR CONDITIONING)
ELECTRIC COMPRESSOR INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM is an integral part of the A/C electric compressor and
cannot be removed from or serviced separately. The ACCM has both low
voltage and high voltage electrical connections. The ACCM requires a low
voltage system operating voltage between 9 and 16 volts. The ACCM also
requires high voltage system operating voltage between 140 and 350
volts. The ACCM
has a single ground circuit located in the engine compartment wiring
harness. Excessive resistance or an open in one or more of these
circuits, a discharged battery or an inoperative charging system results
in the ACCM setting a DTC . REFER to: Climate Control System - Vehicles
With: Dual Automatic Temperature Control (DATC) - System Operation and
Component Description (412-00 Climate Control System - General
Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA1 CHECK THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any DCDC Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA2 CHECK THE BECM (BATTERY ENERGY CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any BECM Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA3 RECHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before carrying out this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to the appropriate workshop manual section 414-03. NOTE: Before testing of the Air Conditioning Control Module (ACCM) with a diagnostic scan tool can be performed on Hybrid Electric Vehicle (HEV), the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Does DTC P0562:00, P0563:00, P0AFA:16, P0AFB:17, P0AFB:1C, B11EE:19, B11EE:4B or B11EE:92 return?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA4 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) MAIN ECU VOLTAGE SUPPLY MAINECUV PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage PID between 9 volts and 16 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA5 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) LOW VOLTAGE SUPPLY CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA6 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) GROUND CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA7 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage supply PID between 100 volts and 467 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA8 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA9 CHECK THE HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||||||||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AA10 CHECK FOR CORRECT ACCM (AIR CONDITIONING CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before testing of the Air Conditioning (A/C) electric compressor Air Conditioning Control Module (ACCM) with a diagnostic scan tool can be performed on a Hybrid Electric Vehicle (HEV), the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Is the concern still present?
|
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 300 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.
PINPOINT TEST AB: U0100:00|
Normal Operation and Fault Conditions The ACCM and the HVAC control module communicates with the PCM over
the CAN . If messages are missing or not received from the PCM ,
features such as the A/C can be inoperative or can operate incorrectly,
or the outside air temperature can be reporting incorrectly. REFER to:
Climate Control System - Vehicles With: Dual Automatic Temperature
Control (DATC) - System Operation and Component Description (412-00
Climate Control System - General Information, Description and
Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| AB1 VERIFY THE CONCERN | |||||||||
Is an observable symptom present?
|
|||||||||
| AB2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE) | |||||||||
Can a vehicle session be established?
|
|||||||||
| AB3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| AB4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| AB5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00 | |||||||||
Is DTC U0100:00 still present?
|
|||||||||
| AB6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | |||||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is the observable symptom still present?
|
|||||||||
| AB7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST AC: U0111:00|
Normal Operation and Fault Conditions The ACCM communicates with the BECM over the CAN . If messages are missing or not received from the BECM , the A/C can be inoperative. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AC1 VERIFY THE CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AC2 CHECK THE NETWORK COMMUNICATION | ||||||
Does the BECM pass the network test?
|
||||||
| AC3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AC4 CHECK FOR BECM (BATTERY ENERGY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AC5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0111:00 | ||||||
Is DTC U0111:00 still present?
|
||||||
| AC6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is the observable symptom still present?
|
||||||
| AC7 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AD: U3003:16 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The modules monitor the supplied voltage and set a DTC if it falls below a threshold. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||
| AD1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||
Is DTC U3003:16 still present?
|
||||||||||
| AD2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||
Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
|
||||||||||
| AD3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE | ||||||||||
Is the battery OK and fully charged?
|
||||||||||
| AD4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE | ||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||
| AD5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE | ||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||
| AD6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE | ||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||
| AD7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST AE: U3003:17|
Normal Operation and Fault Conditions The modules monitor the supplied voltage and set a DTC if it rises above a threshold. DTC Fault Trigger Conditions
Possible Sources
NOTE: Diagnostic Trouble Code (DTC) U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events. |
||||||
| AE1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES | ||||||
Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
|
||||||
| AE2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING | ||||||
Does the battery voltage rise to 15.5 volts or higher?
|
||||||
| AE3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE) | ||||||
Is DTC U3003:17 still present?
|
||||||
| AE4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AF: BUS OFF|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AF1 DIAGNOSE THE INTERMITTENT FAULT | ||||||
|
NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .
Is the DTC still present?
|
PINPOINT TEST AG: INVALID DATA RECEIVED|
DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||
| AG1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA | ||||||||||||||||||
Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
|
PINPOINT TEST AH: MODULE CONFIGURATION FAULT|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| AH1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE | |||||||||
Is the original DTC still present?
|
PINPOINT TEST AI: INTERNAL MODULE FAILURE|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| AI1 INSTALL A NEW SUSPECT MODULE | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AJ: P2611:00, P2612:00, P2613:00 HIGH VOLTAGE BATTERY COOLANT COOLER SHUT OFF VALVE |
Refer to Wiring Diagrams Cell 21 for schematic and connector information. Normal Operation and Fault Conditions Battery coolant cooler shut off valve, REFER to: Supplemental
Climate Control - System Operation and Component Description (412-03
Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. |
|||||||||||||||||||||
| AJ1 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER SHUT OFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||
| AJ2 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER SHUT OFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AJ3 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER SHUT OFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||
| AJ4 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER SHUT OFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AJ5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AK: THE A/C (AIR CONDITIONING)
COMPRESSOR RELIEF VALVE DISCHARGING|
Normal Operation and Fault Conditions The A/C pressure relief valve normal open pressure is 3,447-4,137 kPa (500-600 psi). Possible Sources
|
||||
| AK1 DIAGNOSE THE A/C (AIR CONDITIONING) COMPRESSOR RELIEF VALVE | ||||
Is the high side system pressure above the A/C pressure relief valve open pressure [3,447-4,137 kPa (500-600 psi)]?
|
PINPOINT TEST AL: THE ELECTRIC BOOSTER HEATER IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Electric Booster Heater, REFER to: Supplemental Climate Control -
System Operation and Component Description (412-03 Supplemental Climate
Control, Description and Operation). Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. NOTE: Diagnose and repair all Heating, Ventilation and Air Conditioning (HVAC) control module Diagnostic Trouble Codes (DTCs) before continuing with this pinpoint test. |
||||||||||||||||||||||||||||
| AL1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BCM (BODY CONTROL MODULE) SELF-TEST | ||||||||||||||||||||||||||||
Is DTC B153F:08 present?
|
||||||||||||||||||||||||||||
| AL2 CHECK THE ELECTRIC BOOSTER HEATER CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||
| AL3 CHECK THE ELECTRIC BOOSTER HEATER CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||
| AL4 CHECK THE ELECTRIC BOOSTER HEATER CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||
| AL5 CHECK FOR CORRECT ELECTRIC BOOSTER HEATER OPERATION | ||||||||||||||||||||||||||||
|
NOTE: Make sure operating conditions for the operation of the electric booster heater are met.
Is the concern still present?
|
||||||||||||||||||||||||||||
| AL6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AM: INSUFFICIENT AIR CONDITIONING (A/C) COOLING|
Possible Sources
|
||||
| AM1 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST AN: REDUCED OUTLET AIRFLOW |
Possible Sources
NOTE: Before carrying out the following test, diagnose all Heating, Ventilation And Air Conditioning (HVAC) control module and Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). |
||||
| AN1 CHECK THE CABIN AIR FILTER | ||||
Is the cabin air filter plugged?
|
||||
| AN2 CHECK THE BLOWER MOTOR OPERATION | ||||
Does the blower motor operate properly?
|
||||
| AN3 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST AO: AIR CONDITIONING (A/C) SYSTEM NOISE, VIBRATION AND HARSHNESS (NVH)|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F). Normal Operation and Fault Conditions INSPECT the A/C system for a leak. GO to Pinpoint Test AU Some sounds are normal when the A/C system is operating. When the refrigerant charge is found to be correct, compare to a like vehicle. Possible Sources
|
| Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). |
PINPOINT TEST AP: P01EB:96, P2DA4:00, P2DA5:00, P2DA7:00, U069E:81, U069E:87|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin coolant heater, REFER to: Supplemental Climate Control -
System Operation and Component Description (412-03 Supplemental Climate
Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTE: Before carrying out this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. |
||||||||||||||||||||||
| AP1 CHECK THE CABIN COOLANT HEATER USING THE PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||
|
NOTICE: Running of the cabin coolant heater without running the cabin heater coolant pump may cause damage to the cabin coolant heater. NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Do the heater core hoses increase in temperature?
|
||||||||||||||||||||||
| AP2 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||
|
NOTE: The Cabin Coolant Heater and the Air Conditioning Control Module share the same High Voltage source. Monitor the ACCM HV PID.
Is the voltage supply PID between 100 volts and 467 volts?
|
||||||||||||||||||||||
| AP3 CHECK FOR PARTIALLY MATED HIGH VOLTAGE CONNECTORS | ||||||||||||||||||||||
Are any of the connectors not fully seated?
|
||||||||||||||||||||||
| AP4 CHECK THE CABIN COOLANT HEATER HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| AP5 CHECK THE HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||
| AP6 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||
| AP7 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AP8 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| AP9 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AP10 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||
| AP11 CHECK THE ENGINE COOLANT LEVEL | ||||||||||||||||||||||
|
NOTE: Allow the engine to cool before checking the engine coolant level.
Is the engine coolant level within specifications?
|
||||||||||||||||||||||
| AP12 CLEAR ALL SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||
|
NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Do the heater core hoses increase in temperature?
|
PINPOINT TEST AQ: P2183, P2184, P2185, P2186 |
Refer to Wiring Diagrams Cell 23 for schematic and connector information. Normal Operation and Fault Conditions Cabin heater coolant temperature sensor (also known as ECT sensor
2), REFER to: Supplemental Climate Control - System Operation and
Component Description (412-03 Supplemental Climate Control, Description
and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. |
||||||||||||||||||||||||||||||||||||||||||
| AQ1 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ2 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ3 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ4 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ5 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ6 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR RESISTANCE | ||||||||||||||||||||||||||||||||||||||||||
Is the resistance within the specified values for the temperatures?
|
||||||||||||||||||||||||||||||||||||||||||
| AQ7 CHECK FOR CORRECT POWERTRAIN CONTROL MODULE (PCM) OPERATION | ||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
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C1016 pin 1, component side
PINPOINT TEST AR: P26BD:00, P26BE:00, P26BF:00, P26C1:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin heater coolant diverter valve, REFER to: Supplemental Climate
Control - System Operation and Component Description (412-03
Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged and the 12 volt battery state of charge must be above 61%. |
|||||||||||||||
| AR1 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE OPERATION | |||||||||||||||
Does the PID read True when Max defrost is on and False when Max defrost is off?
|
|||||||||||||||
| AR2 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE COOLANT HOSES | |||||||||||||||
|
NOTE: The coolant hoses are critical to proper Cabin Coolant Heater System operation.
Are there any pinched or kinked hoses?
|
|||||||||||||||
| AR3 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE SUPPLY CIRCUIT FOR VOLTAGE | |||||||||||||||
Is the voltage greater than 11 Volts?
|
|||||||||||||||
| AR4 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE GROUND CIRCUIT FOR AN OPEN | |||||||||||||||
Is the voltage greater than 11 Volts?
|
|||||||||||||||
| AR5 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | |||||||||||||||
Is any voltage present?
|
|||||||||||||||
| AR6 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CONTROL CIRCUIT FOR A SHORT TO GROUND | |||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||
| AR7 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CONTROL CIRCUIT FOR AN OPEN | |||||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||||
| AR8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | |||||||||||||||
Is the concern still present?
|
PINPOINT TEST AS: P2DA6:00|
Normal Operation and Fault Conditions For information on the Cabin Coolant Heater
System, Cabin Heater Coolant Diverter Valve, Cabin Heater Coolant Pump,
Isolated and Combined Loops, REFER to: Supplemental Climate Control -
System Operation and Component Description (412-03 Supplemental Climate
Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged and the 12 volt battery state of charge must be above 61%. |
||||||
| AS1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) | ||||||
Are Diagnostic Trouble Codes (DTCs) P2DA4:00, P2DA5:00, P2DA6:00, P2DA7:00, U069E:81 or U069E:87 present ?
|
||||||
| AS2 CHECK THE COOLANT LEVEL | ||||||
|
NOTE: Allow the electrified drivetrain to cool before checking the coolant level.
Is the level of coolant below the minimum fill line or has the vehicle been recently serviced for coolant system repair?
|
||||||
| AS3 CHECK FOR CABIN HEATER COOLANT PUMP, COOLANT PUMP FOR HIGH VOLTAGE BATTERY AND DIVERTER VALVE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any coolant pump or diverter valve Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AS4 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR VALUE | ||||||
Is the ECT 2 sensor PID value less than 70°C (158°F)?
|
||||||
| AS5 CHECK THE VEHICLE COOLANT SYSTEM WITH THE HIGH VOLTAGE BATTERY COOLANT PUMP COMMANDED OFF | ||||||
|
NOTE: To carry out this test, make sure the coolant diverter valve for the high voltage battery and the coolant pump for the high voltage battery are in the correct state.
Does the status Coolpmp_A _stat PID state no fault detected?
|
||||||
| AS6 CHECK PARAMETER IDENTIFICATIONS (PIDS) FOR INTERNAL FAILURE OF CABIN COOLANT HEATER | ||||||
Do the PIDS say Fault, except for the over temperature?
|
||||||
| AS7 CHECK THE CABIN COOLANT HEATER COOLANT LOOP OPERATION (IN ISOLATION LOOP MODE) | ||||||
Does the ECT2 read less than 90°C (194°F)?
|
||||||
| AS8 VERIFY THE BATTERY COOLANT LOOP OPERATION (IN COMBINED LOOP MODE) | ||||||
Are the temperatures for the Cabin heater coolant temperature sensor ECT2 and the High Voltage Battery coolant temperature within 10°C or 18°F of each other?
|
||||||
| AS9 CHECK FOR PROPER ROUTING, BENT OR PINCHED COOLANT HOSES | ||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Is there any improper hose routing, bent or pinched off hoses?
|
PINPOINT TEST AT: INSUFFICIENT, ERRATIC OR NO HEAT WITH NO DIAGNOSTIC TROUBLE CODES (DTCS) - PLUG-IN HYBRID ELECTRIC VEHICLES|
NOTE: In certain conditions, for example, warm weather, the electric heater may not activate or could run slow w hen switched on. This helps reduce power consumption from the battery. Normal Operation and Fault Conditions When E-Heat is on, an electric heater is used to warm the cabin and keep the windows from fogging. Turning E-Heat off saves battery power, which extends your driving range. The electric heater is the only source of heat to warm the cabin. For additional information on the climate control features found on the Information and Entertainment Display Unit, Refer to the Owner's Literature. Possible Sources
Visual Inspection and Pre-checks
|
||||
| AT1 CHECK FOR CORRECT COOLANT LEVEL | ||||
Is the coolant level above the minimum line on the coolant expansion tank?
|
||||
| AT2 RESET THE OUTSIDE AIR TEMPERATURE (OAT)/AMBIENT AIR TEMPERATURE (AAT) SENSOR | ||||
Does the heating system turn on and warm the vehicle's cabin?
|
||||
| AT3 CHECK THE COOLING SYSTEM FOR LEAKS | ||||
Does the cooling system leak?
|
||||
| AT4 CHECK FOR COOLANT FLOW TO THE HEATER CORE | ||||
Did the ECT2 temperature value increase 26°C or 50°F?
|
||||
| AT5 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature, within approximately 6-17°C (10-30°F)?
|
PINPOINT TEST AU: REFRIGERANT LEAK DETECTION|
Possible Sources
|
||||
| AU1 CHECK FOR LEAKS USING THE FLUORESCENT DYE LEAK DETECTION | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Is the presence of a leak found using the fluorescent dye leak detection?
|
||||
| AU2 CHECK THE AIR CONDITIONING (A/C) SYSTEM PRESSURE | ||||
|
NOTE: Static refrigerant pressure, under perfect conditions, should approximately reflect ambient air temperature. Do not rely upon the static refrigerant pressure alone to determine if the system is properly charged. Refer to the current Ford Web Based Technical Training courses for basic HVAC system refrigerant operation.
Is the A/C system pressure between 413-551 kPa (60-80 psi) at 24°C (75.2°F)?
|
||||
| AU3 CHECK FOR LEAKS USING THE ELECTRONIC LEAK DETECTION | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Is the presence of a leak found using the electronic leak detection?
|
||||
| AU4 CHECK FOR LEAKS USING THE EVACUATION AND VACUUM TEST | ||||
|
NOTE: In an Electric or Hybrid vehicle with a battery chiller, it may be necessary to activate the battery chiller(s) to open the solenoid(s) to allow vacuum and gas to pass through to chiller for leak testing. Refer to vehicle-specific shop manual procedure for refrigerant reclaim and charging to see if solenoid(s) activation is necessary. Follow the shop manual procedure to perform activation if needed.
Did the low pressure gauge maintain 99.4 kPA (29.5 in-Hg) for 45 minutes?
|
||||
| AU5 CHECK FOR LEAKS USING THE AIR CONDITIONING (A/C) SYSTEM LEAK TEST USING FORMING GAS | ||||
Was a leak found using the A/C system leak test using forming gas?
|
||||
| AU6 CHECK FOR LEAKS IN THE EVAPORATOR CORE | ||||
Did the low pressure gauge maintain 29.In HG for the 30 minutes in the evaporator core?
|
||||
| AU7 CHECK FOR LEAKS IN THE CONDENSER CORE | ||||
Did the low pressure gauge maintain 29.In HG for the 30 minutes in the condenser core?
|
||||
| AU8 CHECK FOR LEAKS IN THE AIR CONDITIONING (A/C) COMPRESSOR | ||||
Was a leak detected in the A/C compressor?
|
Diagnosis and Testing - Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC)
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)...
Other information:
Ford Escape 2020-2024 Service Manual: Removal and Installation - Rear Wheel Speed Sensor - FWD
Materials Name Specification Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B, APM-4-C - Removal NOTE: Removal steps in this procedure may contain installation details. Remove the wheel and tire. Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation)...
Ford Escape 2020-2024 Owners Manual: At a Glance
INSTRUMENT PANEL Air vents. Direction indicators. See Overriding Automatic High Beam Control. Cruise controls. See What Is Cruise Control. Information Display. See Instrument Cluster Overview. Information display controls and audio controls. See Using the Instrument Cluster Display Controls...
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Push Button Ignition Switch
Switching the Ignition Off
When the ignition is on or in accessory mode, press the push button ignition switch once without your foot on the brake pedal.
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