LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2006 >> Grand Vitara Premium, RWD, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting Systems >> Diagnostic Information And Procedures >> Headlight Symptom Diagnosis
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Headlight Symptom Diagnosis

HEADLIGHT SYMPTOM DIAGNOSIS

Condition Possible Cause Action
Only one low beam does not light up  Circuit fuse blown Replace fuse and check for short circuit  .
Bulb blown Replace bulb  .
Wiring or ground faulty Repair circuit  .
Low beam does not light up  Circuit fuse blown Replace fuses and check for short circuit 
Headlight low beam relay faulty Replace relay  .
Lighting or dimmer switch faulty Check lighting and dimmer switch  referring to HEADLIGHT SWITCH (IN LIGHTING SWITCH) INSPECTION .
Bulbs blown Replace bulbs  .
Wiring or ground faulty Repair circuit  .
BCM faulty (with DRL vehicle or auto-on headlight vehicle) Check BCM for function  referring to BCM SELF-DIAGNOSIS FUNCTION .
Only one high beam does not light up  Circuit fuse blown Replace fuse and check for short circuit  .
Bulb blown Replace bulb  .
Wiring or ground faulty Repair circuit  .
High beam does not light up  Circuit fuse blown Replace fuses and check for short circuit 
Headlight high beam relay faulty Replace relay  .
Lighting or dimmer switch faulty Check lighting and dimmer switch  referring to HEADLIGHT SWITCH (IN LIGHTING SWITCH) INSPECTION .
Bulbs blown Replace bulbs  .
Wiring or ground faulty Repair circuit  .
scientia non olet · About LEMON Manuals