Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual — part 93

9-1 Precautions:

Body, Cab and Accessories

Precautions

Precautions

Precautions on Body, Cab and Accessories

S5JB0E9000001

Air Bag Warning
Refer to “Air Bag Warning in Section 00 in related manual”.

Fastener Caution
Refer to “Fastener Caution in Section 00 in related manual”.

Precautions for Body Service
Refer to “Precautions for Body Service”.

Fastener Caution for Body Service:
Refer to “Fastener Caution for Body Service”.

Cautions in Body Electrical System Servicing
Refer to “Cautions in Body Electrical System Servicing in Section 9A in related manual”.

Precautions for Wiring System
Refer to “Precautions for Wiring System in Section 9A in related manual”.

Precautions for Discharge Headlight Service
Refer to “Precautions for Discharge Headlight Service (If Equipped) in Section 9B in related manual”.

Precautions for Body Service

S5JB0E9000002

WARNING

!

For vehicles equipped with a Supplemental Restraint (Air Bag) System:
When servicing vehicle body, if shock may be applied to air bag system component parts, remove
those parts beforehand.

Fastener Caution for Body Service

S5JB0E9000003

CAUTION

!

• Fasteners are important attaching parts in that they could affect the performance of vital

components and systems, and/or could result in major repair expense. They must be replaced with
one of the same part number of with an equivalent part if replacement become necessary.

• Do not use a replacement part of lesser quality or substitute a design. Torque values must be used

as specified during reassembly to assure proper retention of these parts.

Lighting Systems: 9B-1

Body, Cab and Accessories

Lighting Systems

Schematic and Routing Diagram

Headlight Auto Leveling System wiring Circuit Diagram

S5JB0E9202001

G51-12
G51-19
G51-21

G51-10

G51-23

+B

5V

5V

YEL/RED

GRN/RED

BLK

G51-1

12V

GRN

GRN/YEL

GRN/WHT

YEL

3

G51-13
G51-20
G51-22

5V

BLU/RED
BLU/YEL
BLU/BLK

2

4

5

9

10

11

1

5V

5V

12V

G51-16

G51-3

BLU/BLK

RED/BLU

5V

G51-5 PNK

G51-17

RED

G51-11

G51-24

YEL/GRN

GRN/BLK

6

12V

G51-18

GRN

7

8

G51-6

G51-9

BLU/WHT

G51

10

11

12

13

16

17

18

19

20

3

1

5

6

9

21

22

23

24

[A]

I5JB0D920001-01

[A]: Headlight leveling control module connector (viewed

from harness side)

4.

BCM

8.

Headlight leveling warning light

1. Headlight leveling control module

5. Right headlight leveling actuator

9. Ignition switch

2. Front height sensor

6. Left headlight leveling actuator

10. Lighting switch

3. Rear height sensor

7. Combination meter

11. Diagnosis connector

9B-2 Lighting Systems:

Diagnostic Information and Procedures

DRL System Symptom Diagnosis (If Equipped)

S5JB0E9204006

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.

Turn Signal and Hazard Warning Light Symptom Diagnosis

S5JB0E9204009

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 in
related manual”.

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 in
related manual”.

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 in related manual”.

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.

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” under
“Scan Tool Data in
Section 10B”.

• 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 in related manual”.

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 in related
manual”.

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.

Lighting Systems: 9B-3

Front Fog Light Symptom Diagnosis (If Equipped)

S5JB0E9204013

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.

Illumination Cancel System Symptom Diagnosis (If Equipped)

S5JB0E9204015

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 in related manual”.

Condition

Possible cause

Correction / Reference Item

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) in
related manual”.

Front fog light relay faulty

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

Wiring or grounding faulty

Repair circuit.

BCM faulty

Check BCM for function referring to “Inspection
of BCM and its Circuits in Section 10B in
related manual”.

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 Inspection (If
Equipped)”.

Combination meter and/or information
display (clock) faulty

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

Wiring or grounding faulty

Repair circuit.