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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: Engine Gauge RX Failure (Active); Pcm Communication Failure (Active); Refrigerant Pressure RX Failure (Active); VIN RX Failure (Active) >> 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. CHECK FOR ADDITIONAL HVAC DTCS
  2. CHECK FOR PCM DTCS
  3. A/C - HEATER CONTROL MODULE
  4. PCM - NO MESSAGE TO A/C - HEATER CONTROL MODULE
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