Headlight Symptom Diagnosis (Vehicle Equipped With Discharge Headlight); Headlight Symptom Diagnosis (Vehicle Not Equipped With Discharge Headlight) - Suzuki GRAND VITARA Owner's Manual

Headlight Symptom Diagnosis (Vehicle Equipped With Discharge Headlight)

Condition
Only one low beam does
not light up
Low beam does not light
up
Only one high beam does
not light up
High beam does not light
up

Headlight Symptom diagnosis (Vehicle Not Equipped With Discharge Headlight)

Condition
Only one low beam does
not light up
Low beam does not light
up
Only one high beam does
not light up
High beam does not light
up
Possible cause
Circuit fuse blown
Bulb faulty
Igniter faulty
Ballast faulty
Wiring or ground faulty
Circuit fuses blown
Headlight low beam relay faulty
Lighting or dimmer switch faulty
Bulbs faulty
Igniters faulty
Ballasts faulty
Wiring or ground faulty
BCM faulty
Circuit fuse blown
Bulb blown
Wiring or ground faulty
Circuit fuses blown
Headlight high beam relay faulty
Lighting or dimmer switch faulty
Bulbs blown
Wiring or ground faulty
Possible cause
Circuit fuse blown
Bulb blown
Wiring or ground faulty
Circuit fuse blown
Headlight low beam relay faulty
Lighting or dimmer switch faulty
Bulbs blown
Wiring or ground faulty
BCM faulty (with DRL vehicle or auto-
on headlight vehicle)
Circuit fuse blown
Bulb blown
Wiring or ground faulty
Circuit fuse blown
Headlight high beam relay faulty
Lighting or dimmer switch faulty
Bulbs blown
Wiring or ground faulty
Lighting Systems:
Correction / Reference Item
Replace fuse and check for short circuit.
Replace bulb.
Replace igniter.
Replace ballast.
Repair circuit.
Replace fuses and check for short circuit.
Replace relay.
Check lighting and dimmer switch referring to
"Headlight Switch (in Lighting Switch)
Inspection: ".
Replace bulbs.
Replace igniters.
Replace ballasts.
Repair circuit.
Check BCM for function referring to "Inspection
of BCM and its Circuits: in Section 10B".
Replace fuse and check for short circuit.
Replace bulb.
Repair circuit.
Replace fuses and check for short circuit.
Replace relay.
Check lighting and dimmer switch referring to
"Headlight Switch (in Lighting Switch)
Inspection: ".
Replace bulbs.
Repair circuit.
Correction / Reference Item
Replace fuse and check for short circuit.
Replace bulb.
Repair circuit.
Replace fuses and check for short circuit.
Replace relay.
Check lighting and dimmer switch referring to
"Headlight Switch (in Lighting Switch)
Inspection: ".
Replace bulbs.
Repair circuit.
Check BCM for function referring to "Inspection
of BCM and its Circuits: in Section 10B".
Replace fuse and check for short circuit.
Replace bulb.
Repair circuit.
Replace fuses and check for short circuit.
Replace relay.
Check lighting and dimmer switch referring to
"Headlight Switch (in Lighting Switch)
Inspection: ".
Replace bulbs.
Repair circuit.
9B-9
S5JB0A9204001
S5JB0A9204017