Too Hot In Vehicle - Auxiliary

TOO HOT IN VEHICLE - AUXILIARY

TEST DESCRIPTION

Step 1 - Step 11:

Step 12 - Step 18:

Step 19 - Step 25:

Step 26 - Step 35:

The numbers below refer to the step numbers on the diagnostic table.
7. The specified values are from the A/C System Performance Test.
8. The functionality of the auxiliary air temperature drive shaft is questioned.
9. The functionality of the auxiliary air temperature door control circuit of the auxiliary HVAC control module is questioned.
10. This step questions the status of the air temperature door control signal communication between the front and auxiliary HVAC control module equipped in the Vehicle Entertainment System.
11. This step checks for proper auxiliary air temperature actuator drive shaft movement.
12. The value will vary between 0-255 counts during normal operation. The HVAC control module connector must be connected during this step. This checks for proper operation of the air temperature actuator door control circuit and the HVAC control module.
15. The value will vary between 0-255 counts during normal operation. The HVAC control module connector must be connected during this step. This checks for proper operation of the air temperature actuator door control circuit and the HVAC control module.
16. The auxiliary blower motor switch control circuit should not have continuity to ground when front auxiliary blower control switch is in any position except auxiliary control.
18. The value will vary between 0-255 counts during normal operation. The HVAC control module connector must be connected during this step.