Suzuki Grand Vitara JB419. Service manual — part 171

Instrumentation / Driver Info. / Horn: 9C-1

Body, Cab and Accessories

Instrumentation / Driver Info. / Horn

Precautions

Precautions in Diagnosing Troubles for Combination Meter

S5JB0B9300001

Combination meter uses signals (information) from each control module by CAN communication to control
speedometer, tachometer, engine coolant temp meter, warning light and indicator light (other than air bag warning
light, headlight leveling warning light, rear fog light and turn signal indicator lamp). Therefore, check that no DTC is
detected in each module before performing combination meter symptom diagnosis. If any DTC is detected, correct
trouble indicated by that DTC troubleshooting first.

General Description

CAN Communication Data of Combination Meter

S5JB0B9301001

Combination meter communicates with each control module about the following information. For details of CAN
communication, refer to “CAN Communication System Description in Section 1A”.

Combination Meter Reception Data

ECM

4WD

control

module

(if equipped)

BCM

Combination

meter

DATA

Receive

Engine revolution speed signal
Engine coolant temperature signal
Vehicle speed signal
Malfunction indicator light (MIL) control signal
Diesel particulate filter warning light control signal
Injection warning light control signal
Red stop warning light control signal
Glow ingicator light control signal
Fuel filter warning light control signal

“

CRUSE

”

and

“

SET

”

indicator light control

signal (if equipped)
Brake fluid level switch signal
(brake warning light control signal)
Parking brake switch signal
(brake warning light control signal)
Driver side seat belt buckle switch signal
(seat belt reminder light control signal)
Charging system warning light signal
(charge warning light control signal)
Engine oil pressure switch signal
(oil pressure warning light control signal)
Lighting switch signal
(illumination indicator light control signal)
Door switch signal (door ajar warning light)
HI beam indicator control signal
DRL indicator control signal
Diagnostic trouble code (DTC)
4WD shift position indicator light control signal
ABS warning light control signal
EBD warning light control signal
(brake warnng light control signal)
ESP status signal

ABS

control

module

(vehicle

not

equipped

with ESP )

ESP

control

module

(vehicle

equipped

with ESP )

I5JB0B930001-03

9C-2 Instrumentation / Driver Info. / Horn:

Schematic and Routing Diagram

Combination Meter Circuit Diagram

S5JB0B9302001

8

11

12

13

14

7

6

5

4

G28-8

G28-10

9

9

G28-22

16

G28-16

1

2

10

19

19

G28-13

G28-14

G28-6

G28-18

G28-19

G28-11

3

G28-20

3

3

G28-15

G28-12

15

17

18

I5JB0B930002-01

1. Main fuse

6. Fuel meter

11. CPU

16. Illumination cancel switch (if equipped)

2. METER fuse

7. ECT meter

12. Power supply

17. Combination meter

3. Combination switch

8. ODO-TRIP

13. Interface circuit

18. Headlight auto leveling control module (if equipped)

4. Tacho meter

9. Junction connector

14. CAN driver

19. Fuel level sensor

5. Speedometer

10. SDM

15. Stepper motor and LED output driver

Instrumentation / Driver Info. / Horn: 9C-3

Terminal arrangement of coupler viewed from harness side

Diagnostic Information and Procedures

Fuel Meter Symptom Diagnosis

S5JB0B9304004

Low Fuel Warning Light Symptom Diagnosis

S5JB0B9304005

NOTE
Confirm that fuel meter is in good condition before referring to the following possible causes.
• When fuel level sensor signal 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:

17 16

11

1

22

10

21

9

20

8

19

7

18

6

15

5

14

4

13

3

12

2

I5JB0A930002-01

Terminal

Circuit

Terminal

Circuit

G28-1

—

G28-12 To headlight auto leveling control module

G28-2

—

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 lamp signal)

G28-6

Fuel level sensor ground

G28-17

—

G28-7

—

G28-18 To fuel level sensor

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

G28-22 To illumination cancel switch

Condition

Possible cause

Correction / Reference Item

Fuel meter shows no
operation or incorrect
operation

Circuit fuse blown

Replace fuse and check for short circuit.

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.

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.

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.

Low fuel warning light
comes ON steady

Low fuel

Refill fuel.

Fuel level sensor faulty

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

Combination meter faulty

Replace combination meter.

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

Repair Instructions

Fuel Level Sensor Inspection

S5JB0B9306005

• Check that resistance between terminals “a” and “b”

of fuel level sensor changes with change of float
position.

• Check resistance between terminals “a” and “b” at

each float position in the following.
If the measured value is out of specification, replace.

Main fuel level sensor [A] specifications

Sub fuel level sensor [B] specifications

Oil Pressure Switch Removal and Installation

S5JB0B9306006

For removal and installation, refer to “Oil Pressure
Check in Section 1E”.

Float position

Resistance (

Ω)

3 door

model

Full Upper “C”

193.7 mm
(7.626 in.)

19.0 – 21.0

Full Lower “D”

42.2 mm

(1.661 in.)

111.9 – 115.3

5 door

model

Full Upper “C”

196.8 mm
(7.748 in.)

19.0 – 21.0

Full Lower “D”

34.9 mm

(1.374 in.)

129.0 – 132.4

Float position

Resistance (

Ω)

3 door

model

Full Upper “C”

48.1 mm

(1.894 in.)

19.0 – 21.0

Full Lower “D”

252.8 mm

(9.953 in.)

164.7 – 168.1

5 door

model

Full Upper “C”

64.1 mm

(2.524 in.)

19.0 – 21.0

Full Lower “D”

244.8 mm

(9.638 in.)

147.6 – 151.0

1. Fuel pump

2. Float

“C”

“D”

“D”

[A]

[B]

“b”

“a”

1

2

“C”

2

“b”

“a”

I5JB0B930003-02