HVAC DTCS
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
HVAC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC P0530, P0532, or P0533 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit |
| DTC P0537 or P0538 | Evaporator Air Temperature Sensor Circuit Voltage |
| DTC P0645, P0646, or P0647 | Air Conditioning (A/C) Clutch Relay Control Circuit |
| DTC P2520 or P2521 | Air Conditioning (A/C) Request Circuit Voltage |
| DTC P255F | Air Conditioning (A/C) Request Circuit Performance |