Suzuki Grand Vitara JB416 / JB420. Manual — part 367
9B-7 Lighting Systems:
Component Location
Lighting System Components Location
S5JB0A9203001
NOTE
The following figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are
installed at the opposite side.
26*
15*
8*
15*
19*
1
2
1
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
10*
11*
9
12
13*
14
16*
17*
18
20*
22
21
23
24
25
[A]
[B]
[C]
27*
28*
1
1
29
I5JB0D920002-01
[A]: Discharge headlight
9. Front fog light (if equipped)
20. Rear fog light switch (if equipped)
[B]: Halogen headlight of 5door model
10. Front fog light switch (if equipped)
21. Front height sensor
[C]: Halogen headlight of 3door model
11. Front fog light relay (if equipped)
22. Rear height sensor
1. Headlight bulb
12. Hazard warning switch
23. Discharge head light bulb
2. Socket cover
13. Turn signal / hazard warning relay
24. Igniter
3. Clearance light bulb
14. Rear combination light
25. Ballast
4. Clearance light bulb socket
15. BCM
26. Auto-on headlight sensor
5. Turn signal light bulb
16. Illumination cancel switch (if equipped)
27. Headlight high beam relay
Lighting Systems: 9B-8
Interior Light System Location
S5JB0A9203002
Diagnostic Information and Procedures
Self-Diagnosis Function for Auto Leveling Headlight System
S5JB0A9204015
The headlight leveling control module has self-diagnosis function to monitor the system components and circuits while
the headlight auto leveling system is at work. When the headlight leveling control module detects an abnormality in the
system, the headlight leveling warning light in the combination meter turns ON. However, the headlight leveling control
module does not have a function to indicate location of such abnormality.
Headlight Leveling Warning Light Check
S5JB0A9204016
1) Turn ignition switch to ON position.
2) Check that headlight leveling warning light (1) lights for about 2 seconds and then goes OFF. If the headlight
leveling warning light lights up again 10 seconds after it turned off, go to “Headlight Auto Leveling System
Symptom Diagnosis (If Equipped)”. If headlight leveling warning light flashes, go to “Initialization of Auto Leveling
Headlight System”.
6. Turn signal light bulb socket
17. Headlight leveling switch (if equipped)
28. Headlight low beam relay
7. Headlight unit
18. Rear fog light (if equipped)
29. Headlight bulb socket
8. Lighting switch
19. Headlight auto leveling control module (if equipped)
[A]: Junction block assembly viewed from relay side
2
1
4
3
I5JB0A920010-01
1. Dome light
3. Door switches (both sides)
2. Luggage compartment light (if equipped)
4. Rear end door switch (included in lock assembly)
1
I5JB0A920012-02
9B-9 Lighting Systems:
Headlight Symptom Diagnosis (Vehicle Equipped With Discharge Headlight)
S5JB0A9204001
Headlight Symptom diagnosis (Vehicle Not Equipped With Discharge Headlight)
S5JB0A9204017
Condition
Possible cause
Correction / Reference Item
Only one low beam does
not light up
Circuit fuse blown
Replace fuse and check for short circuit.
Bulb faulty
Replace bulb.
Igniter faulty
Replace igniter.
Ballast faulty
Replace ballast.
Wiring or ground faulty
Repair circuit.
Low beam does not light
up
Circuit fuses 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 faulty
Replace bulbs.
Igniters faulty
Replace igniters.
Ballasts faulty
Replace ballasts.
Wiring or ground faulty
Repair circuit.
BCM faulty
Check BCM for function referring to “Inspection
of BCM and its Circuits in Section 10B”.
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 fuses 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.
Condition
Possible cause
Correction / Reference Item
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 “Inspection
of BCM and its Circuits in Section 10B”.
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.
Lighting Systems: 9B-10
Auto-On Headlight System Symptom Diagnosis (If Equipped)
S5JB0A9204018
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.
DRL System Symptom Diagnosis (If Equipped)
S5JB0A9204009
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool”.
• Check each part in the order from the top of the following list.
Condition
Possible cause
Correction / Reference Item
Headlights are not turned
ON or OFF automatically
even after darkened or
lightened
Circuit fuse blown
Replace fuse and check for short circuit.
Parking brake switch faulty
Check parking brake switch referring to
“Parking Brake Switch Inspection in Section
9C”.
Lighting or dimmer switch faulty
Check lighting and dimmer switch referring to
“Headlight Switch (in Lighting Switch)
Inspection”.
Auto-on headlight sensor faulty
Check auto-on headlight sensor referring to
“Auto-On Headlight Sensor Inspection (If
Equipped)”.
Wiring or ground faulty
Repair circuit.
BCM faulty
Check BCM for function referring to “Inspection
of BCM and its Circuits in Section 10B”.
Condition
Possible cause
Correction / Reference Item
Headlight does not light
when lighting switch is in
OFF position and engine
is running
Lighting switch faulty
Check lighting switch referring to “Headlight
Switch (in Lighting Switch) Inspection”.
BCM faulty
Check BCM for function referring to “Inspection
of BCM and its Circuits in Section 10B”.
Wiring or grounding faulty
Repair circuit.
Headlight lights even if
engine stop and lighting
switch is OFF position
Lighting switch faulty
Check system referring to “Headlight Switch (in
Lighting Switch) Inspection”.
Wiring or grounding faulty
Repair circuit.
BCM faulty
Check BCM for function referring to “Inspection
of BCM and its Circuits in Section 10B”.
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