Compressor Clutch Does Not Engage

TEST DESCRIPTION

Steps 1-5:

Steps 6-16:

Steps 17-28:

Steps 29-40:

Steps 41-42:

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 121°C (250°F).
6. The HVAC control module is inoperative when the module does not respond to any operator control requests.
27. Ensure to test both A/C request signal circuits of the A/C high pressure sensor for the listed conditions.