Suzuki Grand Vitara JB416 / JB420. Manual - part 372

9B-27 Lighting Systems: 

Headlight Leveling Actuator Inspection (If 
Equipped)

S5JB0A9206026

Vehicle equipped with headlight auto leveling 
system

1) Make sure all couplers of headlight and leveling 

actuator are connected securely.

2) Park vehicle in front of blank wall (screen).
3) Turn ignition switch to ON position.
4) Perform “Headlight Leveling Warning Light Check”.
5) Connect service wire (2) to terminals of diagnosis 

connector (1).

6)  Perform Steps a) through c) described below within 

20 seconds after Step 5).
a) Turn lighting switch (3) to “HEAD” position and 

then turn lighting switch to OFF position.

b) Repeat Step a) 2 times.
c) Turn lighting switch (3) to “HEAD” position.

7) Check that optical axes of headlights reflected on 

blank wall (screen) change. If not, go to “Headlight 
Auto Leveling System Symptom Diagnosis (If 
Equipped)”. 

Vehicle equipped with manual leveling headlight 
system

1) Make sure all couplers of headlight and leveling 

actuator are connected securely.

2) Park vehicle in front of blank wall (screen).
3) Turn ignition switch to ON position.
4) Turn lighting switch to “HEAD” position.
5) Move manual leveling headlight switch and check 

that optical axes of headlights reflected on blank wall 
(screen) change then.Also check that leveling 
actuator sounds slightly while moving leveling 
switch. If optical axes do not change, go to 
“Headlight Manual Leveling System Symptom 
Diagnosis (If Equipped)”. 

Rear Fog Light Switch Inspection (If Equipped)

S5JB0A9206020

NOTE

• Rear fog light switch can be turned to ON 

position only when headlight switch is 
turned to HEADLIGHT position (low or high 
beams).

• Rear fog light switch turns OFF 

automatically when headlight switch is 
turned to OFF position.

 

Check for continuity between terminals at each switch 
position.
If check result is not as specified, replace switch.

1

2

3

I5JB0A920032-01

Terminal

Shaft condition

1

2

OFF

ON

ON

OFF

2

1

I4RS0B920013-01

Lighting Systems:  9B-28

Height Sensor Removal and Installation (If 
Equipped)

S5JB0A9206027

Removal

CAUTION

!

 

• Do not remove bracket (4) and link (3) from 

height sensor (2). Removal will spoil its 
original function. If faulty condition is 
found, replace it with new one in a set.

• If height sensor was dropped from a height 

of 30 cm (0.9 ft) or more, replace it with 
new one.

 

1) Disconnect negative (–) cable at battery.
2) Disconnect height sensor connector (1) from height 

sensor (2).

3) Remove front height sensor with its bracket (4) from 

suspension frame (6) and lower arm (5).

Installation
For installation, reverse removal procedure noting the 
following.
• Check that bracket and link of height sensor are not 

deformed.

• Tighten height sensor bolts and nuts to specified 

torque.

Tightening torque
Height sensor bolt (a):  8 N·m (0.8 kgf-m, 6.0 lb-ft)
Height sensor nut (b):  8 N·m (0.8 kgf-m, 6.0 lb-ft)

• Connect connector securely.
• After installation, initialize auto leveling headlight 

system referring to “Initialization of Auto Leveling 
Headlight System”.

Height Sensor and Its Circuit Inspection (If 
Equipped)

S5JB0A9206028

1) Remove front or rear height sensor from vehicle 

referring to “Height Sensor Removal and Installation 
(If Equipped)”.

2) Connect connector to height sensor.
3) Vary position of height sensor link (1) and measure 

voltage between terminals of headlight auto leveling 
control module (4) as described below.
• For front height sensor 

Between “G51-20” and “G51-22” terminals of 
headlight leveling control module.

[A]: Front

[B]: Rear

6

1

3

2

4

[B]

1

3

4

6

2

5

[A]

5

4

4

I5JB0A920033-02

[A]: Front

[B]: Rear

[B]

[A]

(a)

(b)

(a)

(b)

I5JB0A920040-01

9B-29 Lighting Systems: 

• For rear height sensor

Between “G51-19” and “G51-21” terminals of 
headlight leveling control module.
If check result is not as specified, perform 
inspections of power supply, ground and signal 
circuits of front or rear height sensor which is 
described under “Inspection of Headlight Leveling 
Control Module and Its Circuit (Vehicle Equipped 
With Auto Leveling Headlight System)”. If circuits 
are OK, replace height sensor.

Height sensor output voltage
Full bound position (2): about 0.5 V
Full rebound position (3): about 4.5 V

Leveling Control Module Removal and 
Installation (If Equipped)

S5JB0A9206029

Removal

1) Disconnect negative (–) cable at battery.
2) Disconnect connector (1) from headlight leveling 

control module (2).

3) Remove headlight leveling control module with its 

bracket from heater unit (3).

Installation
For installation, reverse removal procedure noting the 
following.
• Connect connector securely.
• After replacing headlight leveling control module with 

new one, initialize auto leveling headlight system 
referring to “Initialization of Auto Leveling Headlight 
System”.

Initialization of Auto Leveling Headlight System

S5JB0A9206030

Initialization of the auto leveling headlight system is to 
make the headlight leveling control module learn signals 
which are fed from the height sensors when the vehicle 
is at the standard height. Standard height means the 
height of the vehicle with a driver but without load in it. 
Initialization of the auto leveling headlight system is 
required when any of the following works has been 
performed.
• Replacement of headlight leveling control module
• Removal of front and/or rear height sensor link from 

lower arm

• Removal of front and/or rear height sensor from 

suspension frame

•  Replacement of front and/or rear height sensor
Without initialization of the auto leveling headlight 
system, it is not possible to obtain its proper function. 
Also, if the auto leveling headlight system is not 
initialized after replacing the headlight leveling control 
module, the headlight leveling warning light in the 
combination meter flashes.

1) Observe the following instructions.

•  Park vehicle on level ground.
• Adjust air pressure of all tires to the specified 

value respectively.

• Bounce vehicle body up and down by hand to 

stabilize suspension.

2) Turn ignition switch to ON position.
3) Perform “Headlight Leveling Warning Light Check”.
4) Connect service wire (2) to terminals of diagnosis 

connector (1).

5) Perform Steps a) through b) described blow within 

20 seconds after Step 4).
a) Turn lighting switch (3) to “HEAD” position and 

then turn lighting switch to OFF position.

b) Repeat Step a) 2 times.

[A]: Front

[B]: Rear

G51

10

11

12

13

16

17

18

19

20

3

1

5

6

9

21

22

23

24

V

[A]

[B]

1

3

2

3

2

1

4

I5JB0A920034-02

1

3

2

I5JB0A920035-01

1

2

3

I5JB0A920032-01

Lighting Systems:  9B-30

6)  Confirm that headlight leveling warning light flashes 

3 times and turns off, which indicates that system 
initialization was completed properly. If it does not 
turn off after flashing 3 times, it means initialization 
was not successful. In such case, turn off ignition 
switch and perform Steps 1) to 6) again.

Illumination Cancel Switch (If Equipped) 
Inspection

S5JB0A9206021

Check for continuity between terminals at each switch 
position.
If check result is not as specified, replace switch.

Auto-On Headlight Sensor Inspection (If 
Equipped)

S5JB0A9206031

1) Disconnect negative (–) cable at battery.
2) Remove auto-on headlight sensor (1) located on the 

passenger side of the dashboard (2). Be careful not 
to damage the sensor (1) and dashboard by using 
rag (3).

3) Measure voltage between white wire terminal and 

black wire terminal at the following condition.
If measured voltage is out of specification, replace 
sensor.

Auto-on headlight sensor voltage specifications
Cover the sensor lens with hand: 0.4 V
Light the sensor lens with incandescent lamp 
100 W: 3 – 4.5 V

Specifications

Tightening Torque Specifications

S5JB0A9207001

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fastener Information in Section 0A”.

1

I5JB0A920012-02

1

2

3

4

Switch Position

Terminal

ON (PUSH IN)

1

2

3

4

OFF

I4RS0B920014-01

2

1

3

I5JB0A920038-01

I5JB0A920039-01

Fastening part

Tightening torque

Note

N

⋅m

kgf-m

lb-ft

Height sensor bolt

8

0.8 

6.0

)

Height sensor nut

8

0.8 

6.0

)