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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Body Diagnostic Procedures) >> Diagnostic Information And Procedure >> Heating & A/C >> Symptom: *HVAC System Test >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. ATTEMPT TO COMMUNICATE WITH THE PCM AND THE CTM
  2. CHECK FOR HVAC RELATED DTCS IN THE PCM
  3. CHECK FOR CTM DTCS
  4. CHECK FOR ACTIVE HVAC DTCS AND SYSTEM TEST FAULT MESSAGES
  5. CHECK FOR HVAC RELATED DTCS IN THE PCM
  6. MANUAL A/C SYSTEM TEST
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