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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostics >> Diagnostic Information & Procedures >> Heating & A/C >> Symptom: *HVAC System Test >> Possible Causes

Possible Causes

  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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