Symptom:
*HIGH BEAM HEADLAMPS WILL NOT TRN ON
OPEN FUSED B+
DIMMER SWITCH LOW BEAM OUTPUT CIRCUIT SHORT TO GROUND
DIMMER SWITCH HIGH BEAM OUTPUT CIRCUIT SHORT TO GROUND
OPEN FUSE
DIMMER SWITCH LOW BEAM OUTPUT CIRCUIT OPEN
INSTRUMENT CLUSTER
MULTIFUNCTION SWITCH
TEST
1
Remove Circuit Breaker 2 from the Fuse Block.
Measure voltage of the Fused B+ circuit at the Circuit Breaker connector.
Is the voltage above 10.0 volts?
Yes → Go To 2
→ Repair the open Fused B+ circuit from Fuse Block fuse 15.
No
2
Check fuse 15 in the Fuse Block.
Is fuse 15 open?
Yes → Go To 3
→ Go To 5
No
3
Remove fuse 15 from the Fuse Block.
Disconnect the Multifunction Switch connector.
Measure resistance of the Dimmer Switch Low Beam Output Circuit to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Dimmer Switch Low Beam Output Circuit for a short
→ Go To 4
No
4
Remove Circuit Breaker 2 from the Fuse Block.
Disconnect the Multifunction Switch connector.
Measure resistance of the Dimmer Switch High Beam Output Circuit and ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Dimmer Switch High Beam Output Circuit for a short
→ Go To 5
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
to ground condition.
Perform BODY VERIFICATION TEST - VER 1.
to ground condition.
Perform BODY VERIFICATION TEST - VER 1.
EXTERIOR LIGHTING
133
APPLICABILITY
All
All
All
All