Operation CHARM: Car repair manuals for everyone.

Too Cold in Vehicle



Too Cold in Vehicle

Test Description

Step 1 - Step 11:




Step 12 - Step 21:




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 an operator control request.
8. If no condition is found with all conditions listed, then compare door travel to a known good vehicle.