Compressor Controls

(Perform before beginning System Diagnosis)

1. If the A/C Compressor Clutch engages but only warm air is delivered, disconnect the negative battery cable for 15 seconds before attempting further diagnosis. This will reset the Heater and A/C Programmer and may correct the problem.

2. Make sure A/C Compressor Clutch connector terminals are free from corrosion. Make sure connector is on tight.

3. Make sure grounds G105 (VIN J), G109 (VIN 8) and G201 are clean and tight.

4. Make sure A/C System is properly charged with refrigerant.

^ Refer to System Diagnosis. System Diagnosis - Compressor Controls