Diesel Data: Automotive Repair

Low Beam Headlamps Will Not Turn On

Test 1 - 4:




Test 5 - 6:






SYMPTOM
LOW BEAM HEADLAMPS WILL NOT TURN ON

POSSIBLE CAUSES
- Multifunction switch
- Fuse block
- Dimmer switch low beam output circuit open
- Instrument cluster
- Open fused B+ to fuse block
- Fused B+ circuit short to ground
- B+ circuit breaker 2