1998 SUZUKI GRAND VITARA Acc fuse

YH4
GRAND
VITARA
ALWAYS CARRY AIR BAG (INFLATOR) MODULE
WITH TRIM COVER (AIR BAG OPENING) AWAY
FROM BODY.
ALWAYS PLACE AIR BAG (INFLATOR) MODULE
ON WORKBENCH WITH TRIM COVER (AIR BAG
OPENING) UP, AWAY FROM LOOSE OBJECTS.
1. Slit on workbench
2. Workbench vise
3. Lower mounting bracket
0A-4 GENERAL INFORMATION
SERVICING AND HANDLING
WARNING:
Many of service procedures require disconnection of ªAIR
BAGº fuse and all air bag (inflator) module(s) from initiator
circuit to avoid an accidental deployment.
Driver and Passenger Air Bag (Inflator) Modules

For handling and storage of a live air bag (inflator) module,
select a place where the ambient temperature below 65
C
(150
F), without high humidity and away from electric
noise.

When carrying a live air bag (inflator) module, make sure
the bag opening is pointed away from you. In case of an
accidental deployment, the bag will then deploy with mini-
mal chance of injury. Never carry the air bag (inflator)
module by the wires or connector on the underside of the
module. When placing a live air bag (inflator) module on
a bench or other surface, always face the bag up, away
from the surface. As the live passenger air bag (inflator)
module must be placed with its bag (trim cover) facing up,
place it on the workbench with a slit or use the workbench
vise to hold it securely at its lower mounting bracket. This
is necessary so that a free space is provided to allow the
air bag to expand in the unlikely event of accidental de-
ployment. Otherwise, personal injury may result.

Never dispose of live (undeployed) air bag (inflator) mod-
ules (driver and passenger). If disposal is necessary, be
sure to deploy them according to deployment procedures
described in SECTION 10B before disposal.

The air bag (inflator) module immediately after deploy-
ment is very hot. Wait for at least half an hour to cool it off
before proceeding the work.

After an air bag (inflator) module has been deployed, the
surface of the air bag may contain a powdery residue. This
powder consists primarily of cornstarch (used to lubri-
cate the bag as it inflates) and by-products of the chemical
reaction. As with many service procedures, gloves and
safety glasses should be worn.

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VITARA
7B1-20 AUTOMATIC TRANSMISSION (4 A / T)
PRECAUTION IN DIAGNOSING TROUBLE

Don't disconnect couplers from PCM (ECM), battery cable from battery, PCM ground wire harness from engine
or main fuse before checking the diagnosis information (DTC, freeze frame data, etc.) stored in PCM memory.
Such disconnection will clear memorized information in PCM memory.

Using SUZUKI scan tool (Tech-1), or also generic scan tool for vehicle without monitor connector, the diagnostic
information stored in PCM memory can be checked and cleared as well. Before its use, be sure to read Operator's
(instruction) Manual supplied with it carefully to have good understanding of its functions and usage.

Priorities for diagnosing troubles (Only for vehicle without monitor connector)
If two or more diagnostic trouble codes (DTCs) are stored, proceed to the flow table of the DTC which was de-
tected earliest in the order and follow the instruction in that table.
If no instructions are given, troubleshoot diagnostic trouble codes according to the following priorities.
1. Diagnostic trouble codes (DTCs) other than DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC
P0400 (EGR flow malfunction)
2. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0400 (EGR flow malfunction)

Be sure to read ªPrecautions for Electrical Circuit Serviceº in Section 0A before inspection and observe what is
written there.

PCM replacement
When substituting a known-good PCM, check for following conditions.
Neglecting this check may result in damage to good PCM.
± All relays and actuators have resistance of specified value.
± MAF sensor, MDP sensor, TP sensor and fuel tank pressure sensor are in good condition. Also, the power
circuit of these sensors is not shorted to the ground.

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VITARA
7B1-26 AUTOMATIC TRANSMISSION (4 A / T)
Operation
VISUAL INSPECTION
Visually check following parts and systems.
INSPECTION ITEM
REFERRING SECTION

A / T fluid ± ± ± ± ± level, leakage, color

A / T fluid hoses ± ± ± ± ± disconnection, looseness, deterioration

Throttle (accelerator) cable ± ± ± ± ± play, installation

A / T throttle cable ± ± ± ± ± play, installation

A / T select cable ± ± ± ± ± installation, operation

Engine oil ± ± ± ± ± level, leakage

Engine coolant ± ± ± ± ± level, leakage

Battery ± ± ± ± ± fluid level, corrosion of terminal

Connectors of electric wire harness ± ± ± ± ± disconnection, friction

Fuses ± ± ± ± ± burning

Parts ± ± ± ± ± installation, damage

Bolt ± ± ± ± ± looseness

Other parts that can be checked visually
Also check following items at engine start, if possible.

ªO / D OFFº lamp

ªPOWERº lamp


Malfunction indicator lamp

Charge warning lamp

Engine oil pressure warning lamp

Engine coolant temp. meter

Other parts that can be checked visually
Section 0B
Section 7B1
Section 6E1 / 6E2
Section 7B1
Section 7B1
Section 0B
Section 0B
Section 6 / 6-1 / 7B1
Section 8
Section 7B1
Section 7B1
Section 6 / 6-1
Section 6H
Section 8 (Section 6A1 / 6A2 /
6A4 for pressure check)

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8C
INSTRUMENTATION / DRIVER INFORMATION 8C-1
GENERAL DESCRIPTION8C- 2 . . . . . . . . . . . . . .
Cautions in Servicing 8C- 2. . . . . . . . . . . . . . . . .
Symbols and Marks 8C- 2. . . . . . . . . . . . . . . . . . .
Wiring Color Symbols 8C- 2. . . . . . . . . . . . . . . . .
Abbreviations 8C- 2. . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector 8C- 2. . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay 8C- 2. . . . . . . . . . . . . . . . . .
Power Supply Diagram 8C- 2. . . . . . . . . . . . . . . .
Combination Meter 8C- 2. . . . . . . . . . . . . . . . . . .
DIAGNOSIS8C- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer and VSS 8C- 4. . . . . . . . . . . . . . . .
Fuel Meter / Fuel Gauge Unit 8C- 4. . . . . . . . . . . .
Engine Coolant Temp. (ECT) Meter and
Sensor 8C- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 8C- 4. . . . . . . . . . . . . . . . . . . .
Brake and Parking Brake Warning
Light 8C- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Light Remainder Warning Buzzer 8C- 5. . . . . . . Seat Belt Warning Light (If Equipped) 8C- 5. . .
Ignition Key Remainder Warning
Buzzer (If Equipped) 8C- 5. . . . . . . . . . . . . . . . .
Cigarette Lighter and Accessory Socket 8C- 5.
ON-VEHICLE SERVICE8C- 6 . . . . . . . . . . . . . . . .
Ignition (Main) Switch 8C- 6. . . . . . . . . . . . . . . . .
Combination Meter 8C- 7. . . . . . . . . . . . . . . . . . .
Speedometer and VSS 8C- 8. . . . . . . . . . . . . . . .
Fuel Meter / Fuel Gauge Unit 8C- 9. . . . . . . . . . . .
Engine Coolant Temp. (ECT) Meter and
Sensor 8C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 8C-11. . . . . . . . . . . . . . . . . . . .
Brake and Parking Brake Warning
Light 8C-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Key Remainder (If Equipped) /
Light Remainder Warning Buzzer 8C-12. . . . . .
Door Switch 8C-13. . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning Light (If Equipped) 8C-13. . .
SECTION 8C
INSTRUMENTATION/DRIVER INFORMATION
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System

Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.

Technical service work must be started at least 90 seconds after the ignition switch is turned to the
ªLOCKº position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
CONTENTS

YH4
GRAND
VITARA
INSTRUMENTATION / DRIVER INFORMATION 8C-5
BRAKE AND PARKING BRAKE WARNING LIGHT
TroublePossible CauseCorrection
Brake warning light does
not light up
Bulb in combination meter blown

ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

Printed plate in combination meter
faulty

Parking brake switch faulty

Brake fluid level switch faulty

Wiring or grounding faultyReplace bulb
Replace fuse to check for short
Replace printed plate
Replace parking brake switch
Replace brake fluid level switch
Repair
LIGHT REMAINDER WARNING BUZZER
TroublePossible CauseCorrection
Light remainder warning
buzzer shows no
sounding
ªTAILº fuse blown

Buzzer faulty

Wiring or grounding faulty

Driver side door switch faultyReplace fuse to check for short
Replace buzzer
Repair
Replace door switch
SEAT BELT WARNING LIGHT (IF EQUIPPED)
TroublePossible CauseCorrection
Seat belt warning light
does not light up
Bulb in combination meter blown

ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

Seat belt switch faulty

Wiring or grounding faultyReplace bulb
Replace fuse to check for short
Replace seat belt switch
Repair
IGNITION KEY REMAINDER WARNING BUZZER (IF EQUIPPED)
TroublePossible CauseCorrection
Ignition key remainder
warning buzzer shows no
sounding
ªDOMEº fuse blown (Hard Top Model)
ªDOMº fuse blown (Canvas Top
Model)

Buzzer faulty

Wiring or grounding faulty

Driver side door switch faulty

Ignition key switch faultyReplace fuse to check for short
Replace buzzer
Repair
Replace door switch
Replace ignition key switch
CIGARETTE LIGHTER AND ACCESSORY SOCKET
TroublePossible CauseCorrection
Cigarette lighter /
accessory socket shows
no operation
ªCIGARº fuse blown (Hard Top Model)
ªCIGº fuse blown (Canvas Top Model)

Ignition switch faulty

Cigarette lighter / accessory socket
faulty

Wiring or grounding faultyReplace fuse to check for short
Replace ignition switch
Replace cigarette lighter / accessory
socket
Repair

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GRAND
VITARA
10B-12 AIR BAG SYSTEM
1. Data link connector (DLC)
2. DLC cable adapter
3. DLC cable
-1. ªAIR BAGº
warning lamp
-2. ªAIR BAGº fuse box
-3. ªAIR BAGº
monitor coupler
3-1. Diagnostic switch
terminal
-4. Air bag harness
(covered yellow tube)
EXAMPLE: When driver air bag initiator circuit resistance high (Code No.21) is set
Malfunction indicator lamp
(ªAIR BAGº warning lamp)
Turn ON
Turn OFF
Time (sec.) Code No. 21 Code No. 21 Code No. 21 1
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
[Using SUZUKI scan tool]
1) Turn ignition switch OFF.
2) After setting cartridge to Tech 1, connect it to data link connector
(DLC) located on underside of instrument panel at driver's seat
side.
Special Tool
(A): 09931-76011 (Tech 1)
(B): Mass storage cartridge
(C): 09931-76030
3) Turn ignition switch ON.
4) Read DTC according to instructions displayed on Tech 1 and
print it or write it down. Refer to Tech 1 operator's manual for fur-
ther details.
5) After completing the check, turn ignition switch OFF and discon-
nect Tech 1 from data link connector (DLC).
[Not using SUZUKI scan tool]
1) Check that malfunction indicator lamp (ªAIR BAGº warning
lamp) comes ON when ignition switch is turned ON.
If it does not come ªONº, proceed to ªTable Bº on p.10B-18.
2) Using service wire, ground diagnosis switch terminal in monitor
coupler.
3) Read DTC from flashing pattern of malfunction indicator lamp
(ªAIR BAGº warning lamp). (Refer to ªDiagnostic Trouble Code
Tableº on p.10B-14 and 10B-15.)
4) After completing the check, turn ignition switch OFF and discon-
nect service wire from ªAIR BAGº monitor coupler.

YH4
GRAND
VITARA
1. Data link connector
2. DLC cable adapter
3. DLC cable
1sec. 1sec.About 10 seconds
Open
Short-1. ªAIR BAGº warning lamp
-2. ªAIR BAGº fuse box
-3. ªAIR BAGº monitor coupler
3-1. Diagnostic switch terminal
-4. Air bag harness (covered yellow tube)1
AIR BAG SYSTEM 10B-13
DIAGNOSTIC TROUBLE CODE (DTC) CLEARANCE
[Using SUZUKI scan tool]
1) Turn ignition switch OFF.
2) Connect Tech 1 to data link connector (DLC) in the same manner
as when making this connection for DTC check.
Special Tool
(A): 09931-76011 (Tech 1)
(B): Mass storage cartridge
(C): 09931-76030
3) Turn ignition switch ON.
4) Erase DTC according to instructions displayed on Tech 1.
Refer to Tech 1 operator's manual for further details.
5) After completing the check, turn ignition switch OFF and discon-
nect Tech 1 from data link connector (DLC).
6) Perform ªDiagnosis Trouble Code (DTC) Checkº and confirm
that normal DTC (NO CODES) is displayed and not malfunction
DTC.
NOTE:
If DTC 51 or DTC 71 is stored in SDM, it is not possible to
clear DTC.
[Not using SUZUKI scan tool]
1) Turn ignition switch ON and wait about 6 seconds or more.
2) Using service wire, repeat shorting and opening between diag-
nosis switch terminal and ground terminal on ªAIR BAGº monitor
coupler 5 times at about 1 second intervals.
3) Perform ªDiagnosis Trouble Code (DTC) Checkº and confirm
that normal DTC (DTC 12) is displayed and not malfunction
DTC.
NOTE:
If DTC 51 or DTC 71 is stored in SDM, it is not possible to
clear DTC.

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VITARA
AIR BAG SYSTEM 10B-55
ON-VEHICLE SERVICE
SERVICE PRECAUTIONS
SERVICE AND DIAGNOSIS
WARNING/CAUTION labels are attached on each part of air bag system components (SDM, air bag (inflator) mod-
ules and seat belt pretensioners). Be sure to follow the instructions.
WARNING:

If the air bag system and another vehicle system both need repair, Suzuki recommends that the air
bag system be repaired first, to help avoid unintended air bag system activation.

Do not modify the steering wheel, dashboard or any other air bag system components. Modifications
can adversely affect air bag system performance and lead to injury.

Failure to follow procedures could result in possible air bag system activation, personal injury or un-
needed air bag system repairs.

Many of service procedures require disconnection of ªAIR BAGº fuse and air bag (inflator) modules (driver and
passenger) from initiator circuit to avoid an accidental deployment.

Do not apply power to the air bag system unless all components are connected or a diagnostic chart requests
it, as this will set a diagnostic trouble code.

The ªAir Bag Diagnostic System Checkº must be the starting point of any air bag diagnostics. The ªAir Bag Diag-
nostic System Checkº will verify proper ªAIR BAGº warning lamp operation and will lead you to the correct chart
to diagnose any air bag malfunctions. Bypassing these procedures may result in extended diagnostic time, incor-
rect diagnosis, and incorrect parts replacements.

Never use air bag component parts from another vehicle.

If the vehicle will be exposed to temperatures over 93
C (200
F) (for example, during a paint baking process),
remove the air bag system components beforehand to avoid component damage or unintended system activa-
tion.

When servicing, if shocks may be applied (eg., dropped from a height of 90 cm (3 ft) or more) to air bag system
component parts, remove those parts beforehand.

When using electric welding, be sure to disconnect air bag (inflator) module and seat belt pretensioner connec-
tors (driver and passenger) respectively.

When applying paint around the air bag system related parts, use care so that the harness or connector will not
be exposed to the paint mist.

Never expose air bag system component parts directly to hot air (drying or baking the vehicle after painting) or
flames.
WARNING:
When performing service on or around air bag system components or air bag wiring, follow the proce-
dures listed in the following pages to temporarily disable the air bag system. Refer to appropriate ser-
vice manual procedures. Failure to follow procedures could result in possible air bag system activa-
tion, personal injury or unneeded air bag system repairs.