Vehicles With: Dual Automatic Temperature Control (DATC): Pcm
NOTE:
Some PCM Diagnostic Trouble Codes (DTCs) may inhibit A/C operation. If any PCM Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the DTC Chart: PCM.
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| P0532 | A/C Refrigerant Pressure Sensor "A" Circuit Low | GO to Pinpoint Test A |
| P0533 | A/C Refrigerant Pressure Sensor "A" Circuit High | GO to Pinpoint Test A |
| P0645 | A/C Clutch Relay Control Circuit | GO to Pinpoint Test B |
| P0646 | A/C Clutch Relay Control Circuit Low | GO to Pinpoint Test B |
| P0647 | A/C Clutch Relay Control Circuit High | GO to Pinpoint Test B |
| P145B | A/C Demand Not Activated During Self Test | If the HVAC selector was not powered on, POWER the HVAC on, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the DTC returns, GO to Pinpoint Test G |
| P06A0 | Variable A/C Compressor Control Circuit | GO to Pinpoint Test T |
| P1464 | A/C Demand Out Of Self Test Range | If the HVAC selector was not powered off, POWER the HVAC off, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the DTC returns, GO to Pinpoint Test H |
| P193E | A/C Clutch Request Signal | GO to Pinpoint Test R |
| P2600 | Coolant Pump "A" Control Circuit/Open | GO to Pinpoint Test S |
| P2601 | Coolant Pump "A" Control Circuit Performance/Stuck Off | GO to Pinpoint Test S |
| P2602 | Coolant Pump "A" Control Circuit Low | GO to Pinpoint Test S |
| P2603 | Coolant Pump "A" Control Circuit High | GO to Pinpoint Test S |
| All Other PCM Diagnostic Trouble Codes (DTCs) | - | REFER to the appropriate Electronic Engine Controls article and see the Diagnosis and Testing PCM DTC Chart. |