Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 488

9C-4 Instrumentation / Driver Info. / Horn: 

Schematic and Routing Diagram

Combination Meter Circuit Diagram

S6JB0A9302001

7

6

5

4

17

G28-8

G28-10

9

9

G28-1

20

G28-16

1

2

10

G28-2

21

G28-13

G28-14

8

11

13

14

G28-19

3

G28-11

3

G28-12

G28-20

18

3

G28-15

16

G28-18

19

12

G28-6

19

[A]

15

I6JB0A930003-02

[A]: Diesel engine model

8. ODO-TRIP

16. Illumination control switch (Odometer/Tripmeter selector) (if equipped)

Instrumentation / Driver Info. / Horn:  9C-5

Terminal arrangement of coupler viewed from harness side

Component Location

Audio System Component Location

S6JB0A9303001

1. Main fuse

9. Junction connector

17. Combination meter

2. METER fuse

10. SDM

18. Headlight auto leveling control module (if equipped)

3. Combination switch

11. CPU

19. Fuel level sensor

4. Tachometer

12. Power supply

20. Audio unit

5. Speedometer

13. Interface circuit

21. Information display

6. Fuel meter

14. CAN driver

7. ECT meter

15. Stepper motor and LED output driver

Terminal

Circuit

Terminal

Circuit

G28-1

To audio unit (Illumination control output 
signal) (if equipped)

G28-12

To headlight auto leveling control module (if 
equipped)

G28-2

To information display (Illumination control 
output signal) (if equipped)

G28-13

Power source

G28-3

—

G28-14 Backup power source

G28-4

—

G28-15 GND

G28-5

—

G28-16 To SDM (Air bag warning light signal)

G28-6

Fuel level sensor ground (diesel engine 
model)

G28-17

—

G28-7

—

G28-18 To fuel level sensor (diesel engine model)

G28-8

CAN communication line (Active Low Signal)

G28-19 To turn signal light switch (turn L)

G28-9

—

G28-20 To turn signal light switch (turn R)

G28-10 CAN communication line (Active High Signal)

G28-21

—

G28-11 To rear fog light switch (if equipped)

G28-22

—

17 16

11

1

22

10

21

9

20

8

19

7

18

6

15

5

14

4

13

3

12

2

I5JB0A930002-01

2

1

4

3

3

6

5

2

(a)

7

I5JB0A930003-01

1. Radio or navigation assembly

4. Antenna feeder

7. GPS antenna (if equipped)

2. Front speaker

5. Antenna

: 10 N

⋅m (1.0 kgf-m, 7.5 lb-ft)

3. Rear speaker

6. Antenna base

9C-6 Instrumentation / Driver Info. / Horn: 

Diagnostic Information and Procedures

Speedometer Symptom Diagnosis

S6JB0A9304001

Tachometer Symptom Diagnosis

S6JB0A9304002

Engine Coolant Temperature (ECT) Meter Symptom Diagnosis

S6JB0A9304003

Condition

Possible cause

Correction / Reference Item

Speedometer shows no 
operation or incorrect 
operation

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A” or 
“DTC Check: For Diesel Engine Model in 
Section 1A”.

Rear wheel speed sensor or sensor ring 
faulty

Check rear wheel speed sensor or sensor ring 
referring to “Front and Rear Wheel Speed 
Sensor On-Vehicle Inspection in Section 4E” 
or “Rear Wheel Encoder On-Vehicle Inspection 
in Section 4E”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty 

Replace combination meter.

ECM faulty

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

Condition

Possible cause

Correction / Reference Item

Tachometer shows no 
operation or incorrect 
operation

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A” or 
“DTC Check: For Diesel Engine Model in 
Section 1A”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

ECM faulty

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

Condition

Possible cause

Correction / Reference Item

Engine coolant 
temperature (ECT) meter 
shows no operation or 
incorrect operation

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A” or 
“DTC Check: For Diesel Engine Model in 
Section 1A”.

ECT sensor faulty

Check ECT sensor referring to “Engine 
Coolant Temperature (ECT) Sensor 
Inspection: For Petrol Engine Model in Section 
1C” or “Engine Coolant Temperature (ECT) 
Sensor Inspection: For Diesel Engine Model in 
Section 1C”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

ECM faulty

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

Instrumentation / Driver Info. / Horn:  9C-7

Fuel Meter Symptom Diagnosis

S6JB0A9304004

Low Fuel Warning Light Symptom Diagnosis

S6JB0A9304005

NOTE
Confirm that fuel meter is in good condition before referring to the following possible causes.
• When fuel level meter circuit is open or short circuit, fuel level meter indicates empty even if fuel 

tank does not empty.

• The low fuel warning light comes ON when fuel level is lower than specification below.

 

Low fuel warning light operation:

Condition

Possible cause

Correction / Reference Item

Fuel meter shows no 
operation or incorrect 
operation

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication (petrol engine 
model)

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A”.

Fuel level sensor faulty

Check fuel level sensor referring to “Fuel Level 
Sensor Inspection”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

ECM faulty (petrol engine model)

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

Low fuel warning 

light operation:

Fuel amount:

Resistance of fuel level sensor:

ON

Approx. 8.3 liter (3 door model)
Approx. 9.9 liter (5 door model)

250.8 – 255.8 

Ω

Condition

Possible cause

Correction / Reference Item

Low fuel warning light 
does not come ON when 
fuel level is lower than 
specification

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication (petrol engine 
model)

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A”.

Fuel level sensor faulty

Check fuel level sensor referring to “Fuel Level 
Sensor Inspection”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

ECM faulty (petrol engine model)

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

Low fuel warning light 
comes ON steady

Low fuel

Refill fuel.

Data (information) can not be received 
by CAN communication (petrol engine 
model)

Check ECM for DTC referring to “DTC Check: 
For Petrol Engine Model in Section 1A”.

Fuel level sensor faulty

Check fuel level sensor referring to “Fuel Level 
Sensor Inspection”.

Combination meter faulty

Replace combination meter.

ECM faulty (petrol engine model)

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