Suzuki Grand Vitara JB627. Service manual - part 380

9C-13 Instrumentation / Driver Info. / Horn: 

Clock Symptom Diagnosis (If Equipped)

S6JB0B9304019

Display does not change 
at 50 

°

C

Outside air temperature is 50 

°C (122 

°F) or more

—

Outside air temperature sensor faulty

Check outside air temperature sensor referring 
to “Outside Air Temperature Sensor Inspection 
(If Equipped)”.

Information display unit faulty

Replace unit.

BCM faulty

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

Display of thermometer 
does not change at “- - -

°

C”

Outside air temperature sensor faulty

Check outside air temperature sensor referring 
to “Outside Air Temperature Sensor Inspection 
(If Equipped)”.

Outside air temperature sensor circuit is 
open or short

Repair circuit.

Wiring or grounding faulty

Repair circuit.

Information display unit faulty

Replace unit.

BCM faulty

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

Display of fuel 
consumption does not 
change at “- - - l / 100 km 
(km/l, MPG)”

Vehicle is not running (instantaneous 
fuel consumption mode)

—

Fuel consumption was reset (average 
fuel consumption mode, if equipped)

Vehicle runs for a while.

Vehicle speed signal faulty

Check ECM for DTC referring to “DTC Check 
in Section 1A”

Wiring or grounding faulty

Repair circuit.

ECM faulty

Check input and output signal of ECM referring 
to “Inspection of ECM and Its Circuits in 
Section 1A”

Information display unit faulty

Replace unit.

BCM faulty

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

Condition

Possible cause

Correction / Reference Item

Condition

Possible cause

Correction / Reference Item

No displaying of clock

Circuit fuse Blown

Replace fuse and check for short circuit.

Wiring and/or grounding faulty

Repair as necessary.

Clock unit faulty

Replace unit.

Instrumentation / Driver Info. / Horn:  9C-14

Audio System Symptom Diagnosis (If Equipped)

S6JB0B9304020

Radio

NOTE
Electronic part / system with undiagnosed problem may cause electromagnetic interference. 
Electromagnetic interference condition may have poor radio reception. To test for presence of 
electromagnetic interference in part / system, perform the following procedures.
1. Turn ignition switch to OFF.
2. Systematically disconnect the electronic part / system connector(s) one at a time.
3. Turn ignition switch to ON.
4. Check any improvement in radio reception.

 

CD Player

Condition

Possible cause

Correction / Reference Item

Poor radio reception

Out of service area (Poor location)

—

Antenna faulty

Replace antenna.

Antenna amplifier faulty

Replace antenna amplifier.

Electrical part / system faulty

Repair or replace electrical part / system 
referring to after-mentioned NOTE.

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Radio does not operate 
and speaker does not 
sound

Circuit fuse(s) blown

Replace fuse(s) and check for short circuit.

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Radio does not operate, 
but speaker sound

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Radio is operative, but all 
speakers does not sound

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Individual speaker is 
noisy or inoperative

Wiring and/or grounding faulty

Repair as necessary.

Speaker faulty

Replace speaker.

Radio assembly faulty

Replace radio assembly.

Sound quality is poor

Out of service area (Poor location)

—

Speaker installed incorrectly

Install correctly.

Wiring and/or grounding faulty

Repair as necessary.

Speaker faulty

Replace speaker.

Radio assembly faulty

Replace radio assembly.

Condition

Possible cause

Correction / Reference Item

CD-ROM does not insert

Another CD-ROM already inserted

Eject CD-ROM.

Circuit fuse blown

Replace fuse and check for short circuit.

Wiring and/or grounding faulty

Repair as necessary.

Extraneous material come to be mixed 
CD player

Clear extraneous material from CD player or 
replace radio assembly.

Radio assembly faulty

Replace radio assembly.

CD-ROM does not eject

Circuit fuse blown

Replace fuse and check for short circuit.

Wiring and/or grounding faulty

Repair as necessary.

Extraneous material come to be mixed 
in CD player

Clear extraneous material from CD player or 
replace radio assembly.

Radio assembly faulty

Replace radio assembly.

CD player does not load 
CD-ROM

CD-ROM faulty

—

CD-ROM inserted with incorrect side up Insert correctly.
Temperature in cabin is too hot

—

Water droplets form on internal lens

Dry about 1 hour with power on.

Radio assembly faulty

Replace radio assembly.

9C-15 Instrumentation / Driver Info. / Horn: 

Auto Volume Control System

Remote Audio Control Switch Symptom Diagnosis (If Equipped)

S6JB0B9304021

Navigation Symptom Diagnosis (If Equipped)

S6JB0B9304022

Sound skips or is noisy

CD-ROM faulty

—

Driving vibration

—

Water droplets form on internal lens

Dry about 1 hour with power on.

Radio assembly installed incorrectly

Install correctly.

Radio assembly faulty

Replace radio assembly.

CD player is operative, 
but all speakers does not 
sound

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Individual speaker is 
noisy or inoperative

Wiring and/or grounding faulty

Repair as necessary.

Speaker faulty

Replace speaker.

Radio assembly faulty

Replace radio assembly.

Sound quality or volume 
is poor

CD-ROM faulty

—

Wiring and/or grounding faulty

Repair as necessary.

Speaker installed incorrectly

Install correctly.

Speaker faulty

Replace speaker.

Condition

Possible cause

Correction / Reference Item

Condition

Possible cause

Correction / Reference Item

Sound volume does not 
vary according to 
changes of vehicle speed

Auto volume control system is “OFF” 
mode

Select auto volume control.

Vehicle speed signal faulty

Check vehicle speed signal referring to 
“Vehicle Speed Signal Inspection (For Audio 
Unit) (If Equipped)”.

Wiring or grounding faulty

Repair circuit.

BCM faulty

Check input and output signal of BCM referring 
to “Inspection of BCM and Its Circuits in 
Section 10B”.

Radio assembly faulty

Replace radio assembly.

Condition

Possible cause

Correction / Reference Item

Audio system is 
operative, but remote 
control switch does not 
control audio system

Remote audio control switch faulty

Check remote audio control switch referring to 
“Remote Audio Control Switch Inspection (If 
Equipped)”.

Contact coil faulty

Replace contact coil.

Wiring and/or grounding faulty

Repair as necessary.

Radio assembly faulty

Replace radio assembly.

Condition

Possible cause

Correction / Reference Item

No displaying of 
navigation

Circuit fuse Blown

Replace fuse and check for short circuit.

Wiring and/or grounding faulty

Repair circuit.

Navigation unit faulty

Replace unit.

Instrumentation / Driver Info. / Horn:  9C-16

Repair Instructions

Ignition Switch Removal and Installation

S6JB0B9306001

Removal

1) Disconnect negative cable at battery.
2) Confirm that ignition key is removed.
3) Remove steering column hole cover (1).
4) Turn steering wheel to remove steering column 

cover screws (3) and then remove steering column 
covers (2).

5) Disconnect couplers (1) from ignition switch (2).
6) Remove ignition switch (2) from key cylinder (3).

Installation
Reverse removal procedure.

Ignition Switch Inspection

S6JB0B9306002

• Check for continuity between terminals at each switch 

position. If check result is not as specified, replace 
switch.

1

2

3

3

I5JB0A940020-02

1

1

2

3

I4RS0A930008-01

Position

Terminal

LOCK

ACC

ON

START

OUT    

IN

K2

K1

ST

IG2

IG1

ACC

B1

B2

Ignition knob switch
(with keyless start system only)

ACC

IG1

IG2

ST

B2

B1

K2

K1

P2

P1

Terminal

OFF (ignition knob switch released) 

ON  (ignition knob switch pushsed)

P1

P2

Key

I5RS0D930003-02