Suzuki Grand Vitara JB416 / JB420. Manual — part 368

9B-11 Lighting Systems:

Headlight Auto Leveling System Symptom Diagnosis (If Equipped)

S5JB0A9204019

Headlight Manual Leveling System Symptom Diagnosis (If Equipped)

S5JB0A9204010

Turn Signal and Hazard Warning Light Symptom Diagnosis

S5JB0A9204002

Condition

Possible cause

Correction / Reference Item

Headlight leveling
Warning Light comes on
steady

Height sensor faulty

Check height sensor referring to “Height
Sensor and Its Circuit Inspection (If
Equipped)”.

Wiring or ground faulty

Repair circuit.

Headlight leveling control module faulty Check headlight leveling control module for

function referring to “Inspection of Headlight
Leveling Control Module and Its Circuit
(Vehicle Equipped With Auto Leveling
Headlight System)”.

Optical axes of both
headlights do not change

Circuit fuse blown

Replace fuse and check for short circuit.

Supply voltage too low or too high

Check charging system referring to “Generator
Test (Undercharged Battery Check) in Section
1J” or “Generator Test (Overcharged Battery
Check) in Section 1J”.

Wiring or ground faulty

Repair circuit.

Headlight leveling control module faulty Check headlight leveling control module for

function referring to “Inspection of Headlight
Leveling Control Module and Its Circuit
(Vehicle Equipped With Auto Leveling
Headlight System)”.

Optical axis of only one
headlight does not
change

Headlight levering actuator faulty

Check actuator referring to “Headlight Leveling
Actuator Inspection (If Equipped)”.

Headlight housing deformed

Check actuator referring to “Headlight Leveling
Actuator Inspection (If Equipped)”.

Wiring or ground faulty

Repair circuit.

Condition

Possible cause

Correction / Reference Item

Optical axes of both
headlights do not change

Circuit fuse blown

Replace fuse and check for short circuit.

Headlight manual leveling switch faulty Check headlight manual leveling switch

referring to “Headlight Manual Leveling Switch
(If Equipped) Inspection”.

Supply voltage too low

Check charging system referring to “Generator
Test (Undercharged Battery Check) in Section
1J”.

Wiring or grounding faulty

Repair circuit.

Optical axis of only one
headlight does not
change

Circuit fuse blown

Replace fuse and check for short circuit.

Headlight leveling actuator faulty

Check actuator referring to “Headlight Leveling
Actuator Inspection (If Equipped)”.

Headlight housing deformed

Replace headlight housing.

Wiring or grounding faulty

Repair circuit.

Condition

Possible cause

Correction / Reference Item

Flash rate high or one
side only flashes

Bulb blown on “flash rate high”-side

Replace bulb.

Incorrect bulb

Replace bulb.

Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay

referring to “Turn Signal and Hazard Warning
Relay Inspection”.

Open circuit or high resistance existing
either; between turn signal switch and
non lighting bulb, or between hazard
warning switch and non lighting bulb

Repair circuit.

Wiring or grounding faulty

Repair circuit.

Lighting Systems: 9B-12

Clearance, Tail and License Plate Light Symptom Diagnosis

S5JB0A9204003

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.

Back-Up Light Symptom Diagnosis

S5JB0A9204004

No flashing

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.

Circuit fuse(s) blown

Replace fuse(s) and check for short circuit.

Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay

referring to “Turn Signal and Hazard Warning
Relay Inspection”.

Turn signal light switch faulty

Check turn signal light switch referring to “Turn
Signal Light Switch (in Lighting Switch)
Inspection”.

Hazard warning switch faulty

Check hazard warning switch referring to
“Hazard Warning Switch Inspection”.

Open circuit or high resistance existing
between battery and switch

Repair circuit.

Wiring or grounding faulty

Repair circuit.

BCM faulty

Replace after making sure that none of above
parts is faulty.

Flash rate low

Supply voltage low

Check charging system.

Turn signal / hazard warning relay faulty Check turn signal / hazard warning relay

referring to “Turn Signal and Hazard Warning
Relay Inspection”.

Condition

Possible cause

Correction / Reference Item

Condition

Possible cause

Correction / Reference Item

All lights do not light up

Circuit fuse blown

Replace fuse and check for short circuit.

Lighting and dimmer switch of
combination switch faulty

Check lighting and dimmer switch 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”.

Some lights do not light
up

Bulb(s) blown

Replace bulb(s).

Wiring or grounding faulty

Repair circuit.

Condition

Possible cause

Correction / Reference Item

Back-up lights do not
light up

Bulb(s) blown

Replace bulb(s).

Circuit fuse blown

Replace fuse and check for short circuit.

Back-up light switch (M/T model) or
transmission range sensor (A/T model)
faulty

Check back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor Inspection and
Adjustment in Section 5A”.

Wiring or grounding faulty

Repair circuit.

Back-up lights stay on

Back-up light switch (M/T model) or
transmission range sensor (A/T model)
faulty

Check back-up light switch or transmission
range sensor referring to “Back Up Light
Switch Inspection in Section 5B” or
“Transmission Range Sensor Inspection and
Adjustment in Section 5A”.

9B-13 Lighting Systems:

Stop (Brake) Lamp Symptom Diagnosis

S5JB0A9204005

Front Fog Light (If Equipped) Symptom Diagnosis

S5JB0A9204006

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.

Rear Fog Light Symptom Diagnosis (If Equipped)

S5JB0A9204011

Illumination Cancel System Symptom Diagnosis (If Equipped)

S5JB0A9204012

Condition

Possible cause

Correction / Reference Item

Stop (brake) lamp do not
light up

Bulb(s) blown

Replace bulb(s).

Circuit fuse blown

Replace fuse and check for short circuit.

Stop (brake) lamp switch faulty

Check stop (brake) lamp switch referring to
“Stop (Brake) Lamp Switch Inspection”.

Wiring or grounding faulty

Repair circuit.

Stop (brake) lamp stay on Stop (brake) lamp switch faulty

Check or adjust stop (brake) lamp switch
referring to “Stop (Brake) Lamp Switch
Inspection” or “Brake Light Switch Adjustment
in Section 4A”.

Condition

Possible cause

Correction / Reference Item

Only one light does not
light

Bulb blown

Replace bulb.

Wiring or grounding faulty

Repair circuit.

Front fog lights do not
light

Circuit fuse blown

Replace fuse and check for short circuit.

Bulbs blown

Replace bulbs.

Front fog light switch faulty

Check front fog light switch referring to “Front
Fog Light Switch Inspection (If Equipped)”.

Front fog light relay faulty

Check front fog light relay referring to “Front
Fog Light Relay Inspection (If Equipped)”.

Wiring or grounding 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

Rear fog light do not light Circuit fuse blown

Replace fuse and check for short circuit.

Bulb blown

Replace bulb.

Rear fog light switch faulty

Check rear fog light switch referring to “Rear
Fog Light Switch Inspection (If Equipped)”.

Wiring or grounding faulty

Repair circuit.

Condition

Possible cause

Correction / Reference Item

Illumination cancel do not
normal operation

Circuit fuse blown

Replace fuse and check for short circuit.

Illumination cancel switch faulty

Check illumination cancel switch referring to
“Illumination Cancel Switch (If Equipped)
Inspection”.

Combination meter and/or information
display (clock) faulty

Replace combination meter and/or information
display (clock).

Wiring or grounding faulty

Repair circuit.

Lighting Systems: 9B-14

Interior Light Symptom Diagnosis

S5JB0A9204007

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.

Auto-On Headlight Operation Inspection (If
Equipped)

S5JB0A9204020

1) Turn ignition switch to ON position and then turn

lighting switch to “AUTO” position.

2) Release parking brake lever.
3) Check headlights for operation as follows. If

headlights do not turn ON or OFF, go to “Auto-On
Headlight System Symptom Diagnosis (If
Equipped)”.
a) Cover auto-on headlight sensor by hand and

check that headlights light up then.

b) Light over auto-on headlight sensor vertically

with on incandescent lamp of approx, 100 W
apart from about 100 mm (3.94 in.) (1) and check
that headlights go off then.

c) In the state as described in Step a), pull up

parking brake lever and check that headlights go
off then.

DRL Operation Inspection (If Equipped)

S5JB0A9204013

1) Confirm that lighting switch is in OFF position.
2) Confirm that dimmer and passing switch is in low beam position.
3) Check DRL for operation as follows.

a) Turn ignition switch to ON position and check headlights remain OFF.
b) Start engine and run it at idle speed. Check headlights turn ON at low beam.
c) Switch dimmer and passing switch to high beam position and check headlights remain tuning ON at low beam.

4) If a malfunction is found, go to “DRL System Symptom Diagnosis (If Equipped)”.

Condition

Possible cause

Correction / Reference Item

Dome light does not light
up

Bulb blown

Replace bulb.

Circuit fuse blown

Replace fuse and check for short circuit.

Dome light switch faulty

Check dome light switch.

Door switch faulty

Check door switch referring to “Door Switch
(Front / Rear / Rear End Door) Inspection in
Section 9C”.

Wiring or grounding

Repair circuit.

BCM faulty

Replace after making sure that none of above
parts is faulty.

Luggage compartment
light (if equipped) does
not light up

Bulb blown

Replace bulb.

Back door switch faulty

Check switch referring to “Door Switch (Front /
Rear / Rear End Door) Inspection in Section
9C”.

Wiring or grounding faulty

Repair circuit.

[A]: Fig. for Step a)

[B]: Fig. for Step b)

[A]

[B]

1

I5JB0A920013-02