Climate Control System - General Information And Diagnostics DTCS
PCM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| P0532 | A/C Pressure Refrigerant Sensor A Circuit Low | Go to Pinpoint Test a . |
| P0533 | A/C Refrigerant Pressure Sensor A Circuit High | Go to Pinpoint Test a . |
| P0645 | Air Conditioning Clutch Relay (A/CCR) Control Circuit | Go to Pinpoint Test b . |
| P1464 | A/C Demand Out Of Self Test Range | If the HVAC selector was not in the OFF position, place it in the OFF position, CLEAR the DTCs and REPEAT the self-test. If the DTC does not return, ignore the DTC and continue diagnostics. If the DTC returns, go to Pinpoint Test j . a |
| All Other DTCs | - | REFER to INTRODUCTION - GASOLINE MODELS article. |
HVAC MODULE DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| B1200 | Stuck Button | Button held too long may set DTC. ATTEMPT to clean buttons. If code returns, INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| B12A4 | Mode Door Actuator, Drive Circuit(s) Shorted to Battery Voltage | Go to Pinpoint Test F . |
| B12A5 | Mode Door Actuator, Feedback Circuit Open or Shorted to Battery Voltage | Go to Pinpoint Test F . |
| B12A6 | Mode Door Actuator, Feedback Circuit Shorted to Ground | Go to Pinpoint Test F . |
| B12A7 | Mode Door Actuator, Slow or Door Obstructed | Go to Pinpoint Test F . |
| B12A8 | Recirc Door Actuator, Drive Circuit(s) Open or Shorted to Ground | Go to Pinpoint Test E . |
| B12A9 | Recirc Door Actuator, Drive Circuit(s) Shorted to Battery Voltage | Go to Pinpoint Test E . |
| B12AA | Recirc Door Actuator, Slow or Door Obstructed | Go to Pinpoint Test E . |
| B12AF | Front Blower Motor Relay Drive Circuit Shorted to Battery Voltage | Go to Pinpoint Test L . |
| B12B0 | Front Blower Motor Relay Drive Circuit Open or Shorted to Ground | If the blower motor is inoperative, go to Pinpoint Test L
. If the blower motor is always on, REPAIR circuit CH123 (VT/GN) for a short to ground. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B12B3 | Blend Door Actuator, Drive Circuit(s) Shorted to Battery Voltage | Go to Pinpoint Test K . |
| B12B5 | Blend Door Actuator, Feedback Circuit Open or Shorted to Battery Voltage | Go to Pinpoint Test K . |
| B12B6 | Blend Door Actuator, Feedback Circuit Shorted to Ground | Go to Pinpoint Test K . |
| B12B7 | Blend Door Actuator, Slow or Door Obstructed | Go to Pinpoint Test K . |
| B12B9 | Vref (5V) Drive Circuit Shorted to Battery Voltage | REPAIR circuit LH111 (BN/WH) for a short to voltage. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B12BA | Vref (5V) Drive Circuit Shorted to Ground | REPAIR circuit LH111 (BN/WH) for a short to ground. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B1342 | Module is Faulted | INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| B1676 | Battery Voltage Out of Range | Go to Pinpoint Test N . |
| B2826 | Front Evaporator Temp Sensor Circuit Failure | Go to Pinpoint Test C . |
| B2827 | Front Evaporator Temp Sensor Short to Ground | Go to Pinpoint Test C . |
| B297A | Blend Door Actuator, Drive Circuit(s) Open | Go to Pinpoint Test K . |
| B297B | Blend Door Actuator, Drive Circuit(s) Shorted to Ground | Go to Pinpoint Test K . |
| B298A | Mode Door Actuator, Drive Circuit(s) Open | Go to Pinpoint Test F . |
| B298B | Mode Door Actuator, Drive Circuit(s) Shorted to Ground | Go to Pinpoint Test F . |
| U0140 | Lost Communication With Generic Electronic Module (GEM) | CLEAR The DTCs. REPEAT the self-test. If the DTC returns, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the lost communication with the GEM. |
| U2050 | No Application Present | INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| All Other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article. |