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Home >> GMC >> 2007 >> Acadia AWD V6-3.6L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Diagnosis By Symptom - HVAC System - Automatic >> Air Delivery Improper

Air Delivery Improper



Air Delivery Improper

Test Description

Step 1 - Step 11:




Step 12 - Step 21:




The numbers below refer to the step numbers on the diagnostic table.
13. The test lamp should illuminate while trying to command the appropriate mode door in both directions.

15. Two ignition circuits supply the HVAC control module. Test the ignition 1 voltage circuit.