With HVAC System - Manual

^ Try the following checks before doing the System Checks.

1. Check Instrument Panel (I/P) Fuse Block Fuse 17 by visual inspection.
2. Check Relay Center Fuse 5 by visual inspection.
3. Check that A/C Compressor Clutch connector is firmly seated.
4. If compressor engages in MAX but not defrost, replace Heater and A/C Control Assembly.

^ Refer to A/C System Check for a guide to normal compressor control operation. System Check

^ Refer to System Diagnosis for compressor control diagnostic tests. Testing and Inspection