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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: LOOPBACK Test Failure (Active) >> Diagnostic Procedure

Diagnostic Procedure

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.
LOOPBACK TEST FAILURE (ACTIVE) - DIAGNOSTIC PROCEDURE

TEST ACTION
1 Turn the ignition on.
With the DRBIII(R), read HVAC DTCs.
Does the DRBIII(R) display additional HVAC DTCs?
  1. Yes --> Return to the symptom list and choose the symptom(s).

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Replace the A/C - Heater Control Module in accordance with the Service Information.

    Perform BODY VERIFICATION TEST - VER 1  .
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