Symptom:
*LOW BEAM HEADLAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
MULTIFUNCTION SWITCH
DIMMER SWITCH LOW BEAM OUTPUT CIRCUIT SHORT TO VOLTAGE
FUSE BLOCK
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1 Turn the headlamp switch to the off position.
With the DRBIIIt, read the Headlamp Switch Voltage.
Does the DRBIIIt display Headlamp Switch Voltage between 4.3 and 4.8 Volts?
All
Yes → Go To 2
No → Replace the Multifunction Switch.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Instrument Cluster.
Turn the ignition on.
Measure voltage of the Dimmer Switch Low Beam Output Circuit.
Is the voltage below 1.0 volt?
All
Yes → Go To 3
No → Repair the Dimmer Switch Low Beam Output Circuit for a short
to voltage condition.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Remove Circuit Breaker 2 from the Junction Block.
Disconnect the Instrument Cluster harness connector.
Measure resistance of the Dimmer Switch Low Beam Output Circuit and ground.
Is the resistance below 100.0 ohms?
All
Yes → Replace the Fuse Block.
Perform BODY VERIFICATION TEST - VER 1.
No → Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
136
EXTERIOR LIGHTING
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