Operation CHARM: Car repair manuals for everyone.

Too Hot In Vehicle



Too Hot in Vehicle

Test Description

Step 1 - Step 11:




Step 12 - Step 22:




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.
5. If the condition does not occur when an A/C request has been made, then you must bypass the A/C performance test procedures.
6. These actions are the enable criteria for the A/C compressor to operate. Ambient air temperature must be above 3°C (38°F) in order for this A/C compressor test to be run.
7. Performing the Air Conditioning System Performance Test ensures that the A/C system is operating properly for further testing. Initial Inspection and Diagnostic Overview
9. If no condition is found with all conditions listed, then compare door travel to a known good vehicle.