1999 SUZUKI GRAND VITARA Section 8D

YH4
GRAND
VITARA
1. Drain plug
Transfer
Front differential
Rear differential
1
21
2
MAINTENANCE AND LUBRICATION 0B-21
Change
1) Inspect transmission case for evidence of fluid leakage.
Repair leaky point, if any.
2) Make sure that vehicle is placed level for fluid level check.
3) Change fluid. For its procedure, refer to On-vehicle service in
Section 7B1.
Fluid cooler hose change
Replace inlet and outlet hoses of cooler hose and their clamps.
For replacement procedure, refer to On-vehicle service in Section
7B1.
ITEM 6-12 and 6-13
Transfer and Differential Oil Inspection and Change
Inspection
1) Check transfer case and differential for evidence of oil leakage.
Repair leaky point if any.
2) Make sure that vehicle is placed level for oil level check.
3) Remove level plug of transfer or differentials (front and rear) and
check oil level.
Oil level can be checked roughly by means of level plug hole.
That is, if oil flows out of level plug hole or if oil level is found up
to hole when level plug is removed, oil is properly filled.
If oil is found insufficient, pour specified amount of specified oil
referring to Section 7D, 7B or 7F.
4) Tighten level plug to specified torque.
Refer to Section 7D, 7E or 7F for tightening torque.
Change
Change transfer oil or differentials oil with new specified oil referring
to Section 7D, 7E and 7F respectively.

YH4
GRAND
VITARA
The figure shows right-hand steering vehicle
The figure shows right-hand steering vehicle
0B-22 MAINTENANCE AND LUBRICATION
ITEM 6-14
Steering System Inspection
1) Check steering wheel for play and rattle, holding vehicle in
straight forward condition on the ground.
Steering wheel play ªaº: 0 ± 30 mm (0 ± 1.2 in.)
2) Check universal joints of steering shaft for rattle and damage. If
rattle or damage is found, replace defective part with a new one.
3) Check steering linkage for looseness and damage. Repair or re-
place defective part, if any.
4) Check bolts and nuts for tightness and retighten them as neces-
sary. Repair or replace defective parts, if any.
Refer to table of Tightening Torque Specification in Section 3B
(or 3B1) and 3C (or 3C1) for particular check points.
5) Check boots of steering linkage for damage (leaks, detachment,
tear, dent, etc.). If damage is found, replace it with new one.
If any dent is found on steering rack boots, correct it to original
shape by turning steering wheel to the right or left as far as it
stops and holding it for a few seconds.
6) Check wheel alignment.
NOTE:
For details of wheel alignment, refer to Wheel Alignment in
Section 3A.
ITEM 6-15
Power Steering (P / S) System Inspection (if equipped)
1) Visually check power steering system for fluid leakage and hose
for damage and deterioration.
Repair or replace defective parts, if any.
2) With engine stopped, check fluid level indicated on fluid tank,
which should be between MAX and MIN marks. If it is lower than
MIN, fill fluid up to MAX mark.
NOTE:

Be sure to use an equivalent of DEXRON

-II or DEX-
RON

-III for P / S fluid.

Fluid level should be checked when fluid is cool.

YH4
GRAND
VITARA
1. ªUPPERº or ªLOWERº mark
MAINTENANCE AND LUBRICATION 0B-23
3) Visually check pump drive belt for cracks and wear.
4) Check belt for tension, referring to item 1-1.
If necessary, have belt adjusted or replaced.
ITEM 6-16
All Hinges, Latches and Locks Inspection
Doors
Check that each door of front, rear and back doors opens and
closes smoothly and locks securely when closed.
If any malfunction is found, lubricate hinge and latch or repair door
lock system.
Engine hood
Check that secondary latch operates properly (check that second-
ary latch keeps hood from opening all the way even when pulling
hood release handle inside vehicle.). Also check that hood opens
and closes smoothly and properly and hood locks securely when
closed.
If any malfunction is found, lubricate hinge and latch, or repair hood
lock system.
ITEM 6-17
Air Conditioning Filter (if equipped)
Inspection
1) Remove air conditioning filter from cooling unit referring to Sec-
tion 1B.
2) Check filter for dirt. Replace excessively dirty filter.
3) Blow off dust by compressed air from air outlet side of filter.
4) Install filter to cooling unit referring to Section 1B.
Replacement
Replace air conditioning filter with new one referring to Section 1B.

YH4
GRAND
VITARA
MAINTENANCE AND LUBRICATION 0B-25
Steering

Check to ensure that steering wheel is free from in-
stability, or abnormally heavy feeling.

Check that the vehicle does not wander or pull to
one side.
Engine

Check that engine responds readily at all speeds.

Check that engine is free from abnormal noise and
abnormal vibration.
Body, Wheels and Power Transmitting System
Check that body, wheels and power transmitting sys-
tem are free from abnormal noise and abnormal
vibration or any other abnormal condition.
Meters and Gauge
Check that speedometer, odometer, fuel meter, tem-
perature gauge, etc. are operating accurately.
Lights
Check that all lights operate properly.
Windshield Defroster
Periodically check that air comes out from defroster
outlet when operating heater or air conditioning.
Set fan switch lever to ªHIº position for this check.
RECOMMENDED FLUIDS AND LUBRICANTS
Engine oilSG, SH or SJ (Refer to engine oil viscosity chart in item 1-4)
Engine coolant (Ethylene glycol
base coolant)ªAntifreeze / Anticorrosion coolantº
Brake fluidDOT 3
Manual transmission oilRefer to Section 7A or 7A1Transfer oilRefer to Section 7A or 7A1.
Differential oil (front & rear)Refer to Section 7E or 7F.
Automatic transmission fluid and
Power steering fluidRefer to Section 3B1 or 7B1.
Door hingesEngine oil or water resistance chassis greaseHood latch assemblyEngine oil or water resistance chassis grease
Key lock cylinderSpray lubricant

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
HEATER AND VENTILATION 1A-5
1. Blower unit
2. Blower motor resistor
3. Blower motor relay
4. Blower fan
5. Blower motor
3. Cover
ON-VEHICLE SERVICE
BLOWER UNIT
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Remove passenger lower member (1).
4) Remove ECM (1) with bracket (2) from blower motor unit (4).
5) Disconnect blower motor (1), blower motor relay (2) and resistor
lead wires (3) at couplers.

YH4
GRAND
VITARA
1A-6 HEATER AND VENTILATION
6) Remove cooling unit (If equipped).
Refer to item COOLING UNIT (EVAPORATOR) REMOVAL in
Section 1B.
7) Disconnect fresh air control cable from blower motor case.
8) Remove blower motor unit (1) by removing its fastening nuts
(2).
9) Disconnect blower motor lead wire (2) at coupler from blower
unit (1).
10) Remove blower motor (3) by removing its mounting screws (4).
INSTALLATION
1) Reverse removal procedure for installation.
2) Connect fresh air control cable, refer to HEATER CONTROL
CABLES INSTALLATION.
3) Enable air bag system, if equipped. Refer to ENABLING AIR
BAG SYSTEM in Section 10B.

YH4
GRAND
VITARA
HEATER AND VENTILATION 1A-7
1. Fastening nuts
1. Air flow
BLOWER MOTOR
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Remove ECM with bracket from blower motor unit.
4) Disconnect harness clamps from dash panel.
5) Loosen three nuts fastening blower unit.
6) Disconnect blower motor lead wire at coupler (2).
7) Remove blower motor (3) from blower unit (1).
INSPECTION

Check continuity between terminal to terminal as shown in left fig-
ure.
If check results are continuity, proceed to next operation check.
If not, replace.

Connect battery to blower motor as shown, then check that the
blower motor operates smoothly and specified current.
Specified current: Max. 25 A at 12 V
INSTALLATION
1) Reverse removal procedure for installation.
2) Enable air bag system, if equipped. Refer to ENABLING AIR
BAG SYSTEM in Section 10B.