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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: *A/C - Heater Control Illumination Inoperative >> 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.
A/C - HEATER CONTROL ILLUMINATION INOPERATIVE - DIAGNOSTIC PROCEDURE

TEST ACTION
1 Turn the ignition off.
Remove the inoperative bulb(s) from the A/C - Heater Control Module.
NOTE: If necessary, hold the bulb in front of a lamp to see the filament.

Inspect the bulb(s).
Is each inoperative bulb OK?
  1. Yes --> Go To 2
  2. No --> Replace the inoperative bulb(s).

    Perform BODY VERIFICATION TEST - VER 1  .
2 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Turn the Headlamp switch on.
Rotate the Cargo Dome switch to the full brightness setting.
Measure the voltage of the Panel Lamps Feed circuit.
Is the voltage above 4.9 volts?
  1. Yes --> Replace the A/C - Heater Control Module in accordance with the Service Information.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Repair the Panel Lamps Feed circuit for an open.

    Perform BODY VERIFICATION TEST - VER 1  .
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