Too Cold In Vehicle - Auxiliary

Too Cold in Vehicle - Auxiliary

Step 1 - 5:

Step 6 - 10:

Step 11 - 17:

Step 18:

Test Description
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.