HVAC DTCS

PCM DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action to Take
P0531:2F	A/C Refrigerant Pressure Sensor A Circuit Range/Performance: Signal Erratic	INSPECT the refrigerant system for leaks. REFER to Electronic Leak Detection or Fluorescent Dye Leak Detection . If refrigerant system leaks or is low, RECHARGE the refrigerant system. Refer to SPECIFICATIONS . If the refrigerant system does not leak and is properly charged, INSTALL a new A/C pressure transducer. CLEAR the DTCs and REPEAT the self-test. TEST the system for normal operation.
P0532:16	A/C Refrigerant Pressure Sensor A Circuit Low: Circuit Voltage Below Threshold	Go to Pinpoint Test A .
P0533:17	A/C Refrigerant Pressure Sensor A Circuit High: Circuit Voltage Above Threshold	Go to Pinpoint Test A .
P0645:13	A/C Clutch Relay Control Circuit: Circuit Open	Go to Pinpoint Test B .
P0646:11	A/C Clutch Relay Control Circuit Low: Circuit Short To Ground	Go to Pinpoint Test B .
P0647:12	A/C Clutch Relay Control Circuit High: Circuit Short To Battery	Go to Pinpoint Test B .
All Other DTCs	-	REFER to INTRODUCTION - GASOLINE MODELS .

INSTRUMENT PANEL CLUSTER (IPC) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action to Take
B101E:01	Air Conditioning Mode Switch: General Electrical Failure	PLACE the HVAC selector in the OFF position, CLEAR the DTCs and REPEAT the self-test. If the DTC does not return, ignore the DTC and continue diagnosing other DTCs or symptoms. If the DTC returns and HVAC DTC 5-2 is also set, GO to Pinpoint Test Land diagnose HVAC DTC 5-2. If the DTC returns and HVAC DTC 5-2 is not also set, INSTALL a new Instrument Panel Cluster (IPC). REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
B1B71:11	Evaporator Temperature Sensor: Circuit Short to Ground	Go to Pinpoint Test C .
B1B71:13	Evaporator Temperature Sensor: Circuit Open	Go to Pinpoint Test C .
All Other DTCs	-	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .