2005 SUZUKI GRAND VITARA lock

YH4
GRAND
VITARA
7E-4 DIFFERENTIAL (FRONT)
Components and Functions
ComponentFunction
4WD switch
When the transfer shift lever is shifted to 4L or 4H position, this switch turns ON
and causes the 4WD control system to turn ON, unless it is shifted to N or 2H
within 1 second.
ECM or PCM
When the 4WD switch turns ON [unless it turns OFF within 1 second], this com-
ponent actuates the pump assembly. If the pressure in the air pump assembly
fails to increase higher than the set level even after the pump motor has run more
than 10 seconds, this component stops the motor to protect it.
Air pump assembly

Pump motor

Release valve

Pressure switchThe air pump assembly consists of a pump motor, release valve and a pressure
switch.
Pump motor:
Produces positive pressure which actuates the actuator.
Release valve:
Closes when transfer shift lever is shifted to 4H or 4L so that the positive pressure
is applied to the actuator, and opens when N or 2H to release the pressure to the
atmosphere.
Pressure switch:
Turns ON and OFF depending on the pressure level in the pump assembly
(whether higher or lower than the set pressure level). ECM or PCM detects the
pressure level through this switch.
Differential case assembly

Free axle hub

Axle lock clutch

ActuatorThe free axle hub, axle lock clutch and actuator are installed in the differential
left case. The positive pressure produced in the air pump assembly is applied
to the actuator which then pushes the axle lock clutch to be engaged with the free
axle hub. In this state, the drive force is transmitted to the front axle, resulting in
the 4WD mode.
When the actuator is free from the positive pressure [when it is under the atmo-
spheric pressure], the axle lock clutch is pushed back by the return spring force
and cannot be engaged with the free axle hub, resulting in the 2WD mode.
ª4WDº indicator lampIt lights up when 4WD control system is in the 4WD mode.

YH4
GRAND
VITARA
8
BODY ELECTRICAL SYSTEM 8-1
SECTION 8
BODY ELECTRICAL SYSTEM
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).
WIRING SYSTEM
(Harnesses, Connectors, Fuses, Relay, Switches, Grounds, System Circuit Diagram)Section 8A . . . . . . .
LIGHTING SYSTEMSection 8B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTRUMENTATION AND DRIVER INFORMATIONSection 8C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WINDOWS, MIRRORS, SECURITY AND LOCKSSection 8D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IMMOBILIZER CONTROL SYSTEMSection 8F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS
GENERAL DESCRIPTION8-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cautions in Servicing8-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols and Marks8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Color Symbols8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Diagram8-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

YH4
GRAND
VITARA
8-2 BODY ELECTRICAL SYSTEM
GENERAL DESCRIPTION
The body electrical components of this vehicle are designed to operate on 12 Volts power supplied by the battery.
The electrical system utilizes negative ground polarity.
CAUTIONS IN SERVICING
When performing works related to electric systems, observe follow-
ing cautions for the purpose of protection of electrical parts and pre-
vention of a fire from occurrence.

When removing the battery from the vehicle or disconnecting the
cable from the battery terminals for inspection or service works
on the electric systems, always confirm first that the ignition
switch and all the other switches have been turned OFF. Other-
wise, the semi-conductor part may be damaged.

When disconnecting cables from the battery, be sure to discon-
nect the one from the negative (±) terminal first and then the other
from the positive (+) terminal.

Reverse the above order when connecting the cables to the bat-
tery terminals.

When disconnecting connectors, never pull the wiring harnesses.
Unlock the connector lock first and then pull them apart by holding
connectors themselves.

When connecting connectors, also hold connectors and put them
together until they lock securely (a click is heard).

YH4
GRAND
VITARA
8B
LIGHTING SYSTEM 8B-1
SECTION 8B
LIGHTING SYSTEM
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
GENERAL DESCRIPTION8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cautions in Servicing8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols and Marks8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Color Symbols8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Diagram8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight with Leveling System (If Equipped) 8B- 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS8B- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights with Leveling System (If Equipped) 8B- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Lights 8B- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearance, Tail and License Plate Lights 8B- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-up Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Fog Light (If Equipped)8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE8B- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights with Leveling System (If Equipped) 8B- 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Lights 8B- 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Fog Light (If Equipped)8B-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

YH4
GRAND
VITARA
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
8C-6 INSTRUMENTATION / DRIVER INFORMATION
KeyPosition
TerminalWire
color
Hard Top Model
Canvas Top Model
ON-VEHICLE SERVICE
IGNITION (MAIN) SWITCH
INSPECTION
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to DISABLING AIR BAG SYSTEM
in Section 10B of this manual.
3) Disconnect main switch lead wire coupler.
4) Check for continuity between terminals at each switch position
shown below. If check result is not as specified, replace ignition
(main) switch.
+B+ACCIG1-1IG1-2IG2STL1L2K1K2
W/YBlB/WB/WY/BB/YBBGG
OUTLOCKLOCK
ACC
IN
ON
START
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to DISABLING AIR BAG SYSTEM
in Section 10B of this manual.
3) Remove steering column referring to Section 3C1 of this manu-
al. Then remove steering lock / ignition (main) switch from steer-
ing column.
INSTALLATION
1) Install steering lock / ignition (main) switch to steering column.
Install steering column assembly referring to Section 3C1 of this
manual.
2) Enable air bag system. Refer to ENABLING AIR BAG SYSTEM
in Section 10B of this manual.
NOTE:
When installing steering column, special care must be tak-
en for tightening sequence and its torque.

YH4
GRAND
VITARA
G16
J20
H25
1. Oil pressure switch
INSTRUMENTATION / DRIVER INFORMATION 8C-11
INSPECTION
1) Warm up ECT sensor (1) observing resistance between sensor
terminal (2) and sensor unit (1). Resistance should be de-
creased with increase of its temperature.
2) Check resistance between sensor terminal (2) and sensor unit
(1) shown below. If check result is not as specified, replace sen-
sor.
Temperature
Resistance
50
C (122
F)136 ± 216

OIL PRESSURE LIGHT
OIL PRESSURE SWITCH
REMOVAL AND INSTALLATION
Refer to OIL PRESSURE CHECK in Section 6A1 (for G16), Section
6A2 (for H25), and Section 6A4 (for J20) of this manual for details.
INSPECTION
1) Disconnect oil pressure switch (1) lead wire.
2) Check for continuity between oil pressure switch terminal (2)
and cylinder block (3) as shown.
During Engine Running
No continuity
At Engine StopContinuity
If check result is not as specified, replace oil pressure switch (1).

YH4
GRAND
VITARA
8D
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-1
GENERAL DESCRIPTION8D- 2 . . . . . . . . . . . . . .
Cautions in Servicing 8D- 2. . . . . . . . . . . . . . . . .
Symbols and Marks 8D- 2. . . . . . . . . . . . . . . . . . .
Wiring Color Symbols 8D- 2. . . . . . . . . . . . . . . . .
Abbreviations 8D- 2. . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector 8D- 2. . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay 8D- 2. . . . . . . . . . . . . . . . . .
Power Supply Diagram 8D- 2. . . . . . . . . . . . . . . .
Windshield Wiper and Washer 8D- 2. . . . . . . . .
Front Wiper and Washer 8D- 2. . . . . . . . . . . . .
Rear Wiper and Washer (If Equipped) 8D- 3.
Power Door Lock and Keyless Entry
(If Equipped) System 8D- 4. . . . . . . . . . . . . . . .
DIAGNOSIS8D- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper and Washer 8D- 5. . . . . . . . .
Front Wiper and Washer 8D- 5. . . . . . . . . . . . .
Rear Wiper and Washer (If Equipped) 8D- 5.
Rear Window Defogger (If Equipped) 8D- 5. . .
Power Window Control System 8D- 5. . . . . . . . .
Power Door Lock System (If Keyless
Entry is not Equipped) 8D- 6. . . . . . . . . . . . . . . Power Door Lock and Keyless Entry
System (If Keyless Entry is Equipped) 8D- 7. .
Power Door Mirror Control System 8D- 8. . . . . .
Door Mirror Heater (If Equipped) 8D- 8. . . . . . . .
Power Sliding Roof (If Equipped) 8D- 8. . . . . . .
Front Seat Heater (If Equipped) 8D- 8. . . . . . . .
ON-VEHICLE SERVICE8D- 9 . . . . . . . . . . . . . . . .
Windshield Wiper and Washer 8D- 9. . . . . . . . .
Front Wiper and Washer 8D- 9. . . . . . . . . . . . .
Rear Wiper and Washer (If Equipped) 8D-13.
Rear Window Defogger (If Equipped) 8D-16. . .
Power Window Control System 8D-18. . . . . . . . .
Power Door Lock System (If Keyless
Entry is not Equipped) 8D-20. . . . . . . . . . . . . . .
Power Door Lock and Keyless Entry
System (If Keyless Entry is Equipped) 8D-23. .
Power Door Mirror Control System 8D-30. . . . . .
Door Mirror Heater (If Equipped) 8D-31. . . . . . . .
Power Sliding Roof (If Equipped) 8D-32. . . . . . .
Front Seat Heater (If Equipped) 8D-33. . . . . . . .
SECTION 8D
WINDOWS, MIRRORS, SECURITY AND LOCKS
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