Operation CHARM: Car repair manuals for everyone.

Compressor Clutch Does Not Engage

TEST DESCRIPTION

Steps 1-2:




Steps 3-4:




Steps 5-8:




Steps 9-11:




Steps 12-16:




Steps 17-22:




Steps 23-28:




Steps 29-34:




Steps 35-37:




The numbers below refer to the step numbers on the diagnostic table.
2. The A/C compressor relay output is disabled if engine coolant temperature is above 124°C (255°F) for the LG8 and 121°C (250°F) for the L36.
6. The HVAC control module is inoperative when the module does not respond to any operator control requests to enable the A/C compressor. The blower motor may still operate independent of the A/C controls.