Compressor Clutch Does Not Engage

TEST DESCRIPTION

Steps 1-6:

Steps 7-16:

Steps 17-28:

Steps 29-40:

The numbers below refer to the step numbers on the diagnostic table.
4. The HVAC control module is inoperative when the module does not respond to any operator control requests.
21. When the blower motor is in the OFF position, a voltage is applied to the OFF blower motor control circuit. The A/C system will not operate if a voltage is applied to the OFF blower motor control circuit.

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes