YH4
GRAND
VITARA
1A
HEATER AND VENTILATION 1A-1
SECTION 1A
HEATER AND VENTILATION
WARNING:
For vehicles equipped with Supplement 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 or 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).
NOTE:
The link mechanism of the heater varies depending on the specifications.
CONTENTS
GENERAL DESCRIPTION1A- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Ventilation1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Circuit1A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE1A- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Unit1A- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor1A- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Relay1A- 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Resistor1A- 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Mode Control Switch1A-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Mode Control Actuator1A-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Control Lever Assembly 1A-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Control Cables1A-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Unit1A-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Duct1A-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
YH4
GRAND
VITARA
5
BRAKES 5-1
GENERAL DESCRIPTION5- 2 . . . . . . . . . . . . . .
DIAGNOSIS5- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Road Testing Brakes 5- 3. . . . . . . . . . . . . . . . . .
Brake Fluid Leaks 5- 3. . . . . . . . . . . . . . . . . . . .
Substandard or Contaminated
Brake Fluid 5- 3. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table 5- 4. . . . . . . . . . . . . . . . . . . . . .
CHECK AND ADJUSTMENT5- 7 . . . . . . . . . . . .
Bleeding Brakes 5- 7. . . . . . . . . . . . . . . . . . . . . .
Brake Pedal Free Height Check 5- 9. . . . . . . .
Brake Light Switch Adjustment 5- 9. . . . . . . . .
Excessive Pedal Travel Check 5- 9. . . . . . . . .
Brake Pedal Play Check 5-10. . . . . . . . . . . . . . .
Brake Fluid Level Check 5-10. . . . . . . . . . . . . . . Brake Hose and Pipe Check 5-10. . . . . . . . . . .
Master Cylinder Check 5-10. . . . . . . . . . . . . . . .
Brake Disc Check 5-11. . . . . . . . . . . . . . . . . . . .
Brake Pad Check 5-11. . . . . . . . . . . . . . . . . . . . .
Brake Shoe Check 5-11. . . . . . . . . . . . . . . . . . . .
Parking Brake Check and
Adjustment 5-12. . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Brake Hydraulic System 5-13. . . . . . .
Fluid Pressure Test 5-13. . . . . . . . . . . . . . . . . . .
Booster Operation Check 5-15. . . . . . . . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS5-17 . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIAL5-17 . . . . . . . .
SPECIAL TOOLS5-18 . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
BRAKES
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).
NOTE:
When inspecting and servicing vehicle equipped with ABS, be sure to refer to section 5E or 5E1 first.
All brake fasteners are important attaching parts in that they could affect the performance of vital parts
and systems, and / or could result in major repair expense. They must be replaced with one of same part
number or with an equivalent part if replacement becomes necessary. Do not use a replacement part of
lesser quality or substitute design. Torque values must be used as specified during reassembly to as-
sure proper retention of all parts. There is to be no welding as it may result in extensive damage and
weakening of the metal.
DIAGNOSIS5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKE PIPE / HOSE / MASTER CYLINDER5A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT BRAKE5B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARKING AND REAR BRAKE5C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS
YH4
GRAND
VITARA
5A
BRAKES PIPE / HOSE / MASTER CYLINDER 5A-1
SECTION 5A
BRAKES PIPE/HOSE/MASTER CYLINDER
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).
NOTE:
All brake fasteners are important attaching parts in that they could affect the performance of vital parts
and systems, and / or could result in major repair expense. They must be replaced with one of same part
number or with an equivalent part if replacement becomes necessary. Do not use a replacement part of
lesser quality or substitute design. Torque values must be used as specified during reassembly to assure
proper retention of all parts. There is to be no welding as it may result in extensive damage and weakening
of the metal.
CONTENTS
GENERAL DESCRIPTION5A- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder Assembly5A- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Booster Assembly5A- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LSPV (Load Sensing Proportioning Valve) Assembly 5A- 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS5A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK AND ADJUSTMENT5A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE5A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Brake Hose / Pipe5A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Brake Hose / Pipe5A- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder Reservoir5A- 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder Assembly5A-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Booster5A-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LSPV (Load Sensing Proportioning Valve) Assembly 5A-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS5A-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIAL5A-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS5A-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
YH4
GRAND
VITARA
5C
PARKING AND REAR BRAKE 5C-1
SECTION 5C
PARKING AND REAR BRAKE
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).
NOTE:
All brake fasteners are important attaching parts in that they could affect the performance of vital parts
and systems, and / or could result in major repair expense. They must be replaced with one of same part
number or with an equivalent part if replacement becomes necessary. Do not use a replacement part of
lesser quality or substitute design. Torque values must be used as specified during reassembly to assure
proper retention of all parts. There is to be no welding as it may result in extensive damage and weakening
of the metal.
CONTENTS
GENERAL DESCRIPTION5C- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drum Brake Assembly5C- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS5C- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK AND ADJUSTMENT5C- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE5C- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking Brake Lever5C- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking Brake Cable5C- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Drum5C- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Shoe5C- 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Cylinder5C-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Back Plate5C-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS5C-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS5C-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS5C-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
YH4
GRAND
VITARA
Terminal
Key
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-21
6) Connect negative cable at battery.
7) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-7 and
groundAnytime10 ± 14 V
E02-14 and
groundAnytimecontinuity
E02-8 and
When driver side door key
switch is OFF positionNo continuity
groundWhen driver side door key
switch is LOCK positionContinuity
E02-9 and
When driver side door key
switch is OFF positionNo continuity
groundWhen driver side door key
switch is UNLOCK positionContinuity
If check result is not satisfactory, repair circuit and recheck.
If check result is satisfactory, replace controller.
KEY CYLINDER SWITCH (DRIVER SIDE)
Check for continuity between terminals according to the key action
shown below.
321
LOCK
OFF
UNLOCK
YH4
GRAND
VITARA
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-25
POWER DOOR LOCK ACTUATOR CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller.
3) Use a 12 V battery to connect its (+) terminal to terminal E02-1,
and its (±) terminal to terminal E02-2 and E02-3. Check all power
doors are locked.
If check result is satisfactory, this circuit is OK.
POWER SUPPLY AND GROUNDING CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller, and connect negative cable at battery.
3) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-7 and
groundAnytime10 ± 14 V
E02-14 and
groundAnytimeContinuity
If check result is satisfactory, this circuit is OK.
DOOR LOCK KEY AND POWER DOOR LOCK SWITCH
CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller.
3) Check for continuity between following terminals at each condi-
tion.
Terminals
ConditionSpecification
E02-8 and
When driver side door key
switch is OFF positionNo continuity
groundWhen driver side door key
switch is LOCK positionContinuity
E02-9 and
When driver side door key
switch is OFF positionNo continuity
groundWhen driver side door key
switch is UNLOCK positionContinuity
If check result is satisfactory, this circuit is OK.
YH4
GRAND
VITARA
8D-26 WINDOWS, MIRRORS, SECURITY AND LOCKS
IGNITION SWITCH AND DOOR SWITCH CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller, and connect negative cable at battery.
3) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-4 and
When ignition switch is OFF
position0 V
groundWhen ignition switch is ON
position10 ± 14 V
E02 10 andWhen all doors are closedNo continuityE02-10 and
groundWhen any one door is
openedContinuity
If check result is satisfactory, this circuit is OK.
DOOR KNOB SWITCH AND TURN SIGNAL RELAY CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller, and connect negative cable at battery.
3) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-6 and
groundAnytime10 ± 14 V
E02-11 and
When driver side door lock
knob is pulled upContinuity
groundWhen driver side door lock
knob is pushed downNo continuity
If check result is satisfactory, this circuit is OK.
YH4
GRAND
VITARA
10A
SEAT BELT 10A-1
SECTION 10A
SEAT BELT
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).
CAUTION:
When fasteners are removed, always reinstall them at the same location from which they were re-
moved. If a fastener needs to be replaced, use the correct part number fastener for that application. If
the correct part number fastener is not available, a fastener of equal size and strength (or stronger) may
be used. Fasteners that are not reused, and those requiring thread-locking compound, will be called
out. The correct torque value must be used when installing fasteners that require it. If the above proce-
dures are not followed, parts or system damage could result.
CONTENTS
GENERAL DESCRIPTIONRefer to SECTION 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE10A-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service precautions10A-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front seat belt10A-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear seat belt10A-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS10A-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .