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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 >> Exterior Lighting >> Symptom: *Low Beam Headlamps Will Not Turn On >> 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.
LOW BEAM HEADLAMPS WILL NOT TURN ON - DIAGNOSTIC PROCEDURE

TEST ACTION
1 Turn the ignition off.
Disconnect the Central Timer Module harness connector.
Measure the voltage of the Fused B+ Circuits of the Central Timer Module harness connector to the PDC.
Is the voltage above 10.0 volts at any of the two circuits?
  1. Yes --> Go To 2
  2. No --> Repair the applicable Fused B+ Circuit for an open condition.

    Perform BODY VERIFICATION TEST - VER 1  .
2 Turn the Headlamp Switch to the on position.
Measure the voltage of the Headlamp Switch Sense circuit.
Is the voltage between 1.4 and 1.8 volts?
  1. Yes --> Go To 3
  2. No --> Replace the Headlamp Switch.

    Perform BODY VERIFICATION TEST - VER 1  .
3 Disconnect the Multifunction Switch harness connector.
Turn the Headlamps on.
Connect a jumper wire between the Headlamp Switch Sense Circuit and the Low Beam Switch Output Circuit.
Do the Low Beam Headlamps turn on?
  1. Yes --> Replace the Multifunction Switch.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 4
4 Disconnect the Central Timer Module harness connector.
Turn the Headlamps on.
Connect a jumper wire between B+ and each Low Beam Driver Circuit.
Do any of the Low Beam Headlamps turn on?
  1. Yes --> Replace the Central Timer Module.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Repair the applicable Low Beam Driver Circuit for an open condition.

    Perform BODY VERIFICATION TEST - VER 1  .
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