Cargo Van With Auxiliary A/C

TEST DESCRIPTION

Steps 1-7:

Steps 8-17:

The number(s) below refer to the step number(s) on the diagnostic table.
4. This checks for proper cooling system operation.
11. The voltage will vary between 0-12 volts during normal operation. The front auxiliary HVAC control assembly connector must be connected during this step. This checks for proper operation of the air temperature actuator door control circuit and the front auxiliary HVAC control assembly.

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