Suzuki Grand Vitara JB627. Manual - part 378

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

Terminal arrangement of coupler viewed from combination meter side

Component Location

Audio System Component Location

S6JB0B9303001

3. Combination switch

8. ODO-TRIP

13. Interface circuit

18. Headlight auto leveling control module (if 

equipped)

4. Tachometer

9. Junction connector

14. CAN driver

5. Speedometer

10. SDM

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

—

G28-17

—

G28-7

—

G28-18

—

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

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

Diagnostic Information and Procedures

Speedometer Symptom Diagnosis

S6JB0B9304001

Tachometer Symptom Diagnosis

S6JB0B9304002

Engine Coolant Temperature (ECT) Meter Symptom Diagnosis

S6JB0B9304003

Fuel Meter Symptom Diagnosis

S6JB0B9304004

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 
in Section 1A”.

Rear wheel speed sensor or sensor ring 
faulty

Check rear wheel speed sensor or sensor ring 
referring to “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 
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 
in Section 1A”.

ECT sensor faulty

Check ECT sensor referring to “Engine 
Coolant Temperature (ECT) Sensor Inspection 
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.

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

Check ECM for DTC referring to “DTC Check 
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

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

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

Low Fuel Warning Light Symptom Diagnosis

S6JB0B9304005

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:

Oil Pressure Warning Light Symptom Diagnosis

S6JB0B9304006

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

Check ECM for DTC referring to “DTC Check 
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

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

Check ECM for DTC referring to “DTC Check 
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

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

Condition

Possible cause

Correction / Reference Item

Oil pressure warning light 
does not light up when 
ignition switch is turned 
to ON position at engine 
off

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Oil pressure switch faulty

Check oil pressure switch referring to “Oil 
Pressure Switch Inspection”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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

Oil pressure warning light 
stays ON

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Oil pressure switch faulty

Check oil pressure switch referring to “Oil 
Pressure Switch Inspection”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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

Instrumentation / Driver Info. / Horn:  9C-8

Brake and Parking Brake Warning Light Symptom Diagnosis

S6JB0B9304007

Seat Belt Reminder Light Symptom Diagnosis (If Equipped)

S6JB0B9304008

Condition

Possible cause

Correction / Reference Item

Brake warning light does 
not light up when brake 
fluid level is low or 
parking brake is pulled up 
or for 2 seconds after 
turning ON ignition switch

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Brake fluid level switch faulty

Check brake fluid level switch referring to 
“Brake Fluid Level Switch Inspection”.

Parking brake switch faulty

Check parking brake switch referring to 
“Parking Brake Switch Inspection”.

ABS system faulty

Refer to “ABS Check in Section 4E”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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

Brake warning light stays 
ON

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Brake fluid level switch faulty

Check brake fluid level switch referring to 
“Brake Fluid Level Switch Inspection”.

Parking brake switch faulty

Check parking brake switch referring to 
“Parking Brake Switch Inspection”.

EBD system faulty

Refer to “EBD Warning Light (Brake Warning 
Light) Check in Section 4E”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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

Condition

Possible cause

Correction / Reference Item

Seat belt reminder light 
does not light up

Circuit fuse blown

Replace fuse and check for short circuit.

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Seat belt switch faulty

Check seat belt switch referring to “Front Seat 
Belt Inspection in Section 8A”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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

Seat belt reminder light 
stays ON

Data (information) can not be received 
by CAN communication

Check BCM for DTC referring to “DTC Check 
in Section 10B”.

Seat belt switch faulty

Check seat belt switch referring to “Front Seat 
Belt Inspection in Section 8A”.

Wiring or ground faulty

Repair circuit.

Combination meter faulty

Replace combination meter.

BCM faulty

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