Too Cold In Vehicle - Auxiliary (A/C Only)

TOO COLD IN VEHICLE - AUXILIARY

TEST DESCRIPTION

Steps 1 - 9:

Steps 10 - 18:

The number below refers to the step number in the diagnostic table.
16. The primary HVAC control module controls the coolant bypass valve. It receives a class 2 message from the auxiliary HVAC control module for the proper position of valve.