YH4
GRAND
VITARA
AIR BAG STEERING WHEEL AND COLUMN 3C1-11
1. Steering column
2. Steering column mounting bolt
3. Steering column lower seal
1. Shift (key) interlock cable
2. Screw
1. Capsule
2. Steering column bracket
3. Plate
1. Steering column assembly ªaº
8) Remove steering column mounting bolts (6 pieces).
9) If equipped with shift (key) interlock cable, remove shift (key)
interlock cable screw and then disconnect its cable from igni-
tion switch.
10) Remove steering column from vehicle.
INSPECTION
NOTE:
Vehicles involved in accidents resulting in body damage,
where steering column has been impacted or air bag
deployed, may have a damaged or misaligned steering col-
umn.
CHECKING PROCEDURE
1) Check that two capsules are attached to steering column brack-
et securely. Check clearance between capsules and steering
column bracket. Clearance should be 0 mm (0 in.) on both sides.
If found loose or clearance, replace steering column assembly.
2) Check two plates for any damages such as crack or breakage.
If anything is found faulty, replace as steering column assembly.
3) Take measurement ªaº as shown. If it is shorter than specified
length, replace column assembly with new one.
Length ªaº: 895 0.8 mm (35.24 0.03 in.)
YH4
GRAND
VITARA
3C1-14 AIR BAG STEERING WHEEL AND COLUMN
1. Steering column
2. Steering lock 1
2
1. Center punch (with sharp point)
2. Steering lock mounting bolt
1. Steering column
2. Steering shaft
STEERING LOCK ASSEMBLY (IGNITION
SWITCH)
REMOVAL
1) Remove steering column. Refer to ªSTEERING COLUMNº in
this section.
2) Using center punch as shown, loosen and remove steering lock
mounting bolts.
NOTE:
Use care not to damage aluminum part of steering lock
body with center punch.
3) Turn ignition key to ªACCº or ªONº position and remove steering
lock assembly from steering column.
INSTALLATION
1) Position oblong hole of steering shaft in the center of hole in col-
umn.
2) Turn ignition key to ªACCº or ªONº position and install steering
lock assembly onto column.
3) Now turn ignition key to ªLOCKº position and pull it out.
4) Align hub on lock with oblong hole of steering shaft and rotate
shaft to assure that steering shaft is locked.
5) Tighten new bolts until head of each bolt is broken off.
6) Turn ignition key to ªACCº or ªONº position and check to be sure
that steering shaft rotates smoothly. Also check for lock opera-
tion.
7) Install steering column. Refer to ªSTEERING COLUMNº in this
section.
YH4
GRAND
VITARA
AIR BAG STEERING WHEEL AND COLUMN 3C1-17
1. Capsule
2. Steering column bracket
3. Plate
1. Steering column assembly
1. Steering column lower seal ªaº
CHECKING STEERING COLUMN FOR
ACCIDENT DAMAGE
NOTE:
Vehicles involved in accidents resulting in body damage,
where steering column has been impacted or air bag
deployed, may have a damaged or misaligned steering col-
umn.
CHECKING PROCEDURE
1) Check that two capsules are attached to steering column brack-
et securely. Check clearance between capsules and steering
column bracket. Clearance should be 0 mm (0 in.) on both sides.
If found loose or clearance, replace steering column assembly.
2) Check two plates for any damages such as crack or breakage.
If anything is found faulty, replace as steering column assembly.
3) Take measurement ªaº as shown. If it is shorter than specified
length, replace column assembly with new one.
Length ªaº: 895 0.8 mm (35.24 0.03 in.)
4) Check steering column lower seal for breakage or deformation.
If found defective, replace.
5) Check steering shaft joints and shaft for any damages such as
crack, breakage, malfunction or excessive play.
If anything is found faulty, replace as steering shaft lower assem-
bly or steering column assembly.
6) Check steering shaft for smooth rotation.
If found defective, replace as column assembly.
7) Check steering shaft and column for bend, cracks or deforma-
tion.
If found defective, replace as column assembly.
YH4
GRAND
VITARA
3F
WHEELS AND TIRES 3F-1
GENERAL DESCRIPTION3F- 1 . . . . . . . . . . . . . .
Tires 3F- 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 3F- 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Tires 3F- 1. . . . . . . . . . . . . . . . . . .
Wheels Replacement 3F- 2. . . . . . . . . . . . . . . . .
Metric Lug Nuts and Wheel Studs 3F- 2. . . . . .
DIAGNOSIS3F- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table 3F- 3. . . . . . . . . . . . . . . . . . . . . .
Balancing Wheels 3F- 3. . . . . . . . . . . . . . . . . . . . MAINTENANCE AND MINOR
ADJUSTMENTS3F- 4 . . . . . . . . . . . . . . . . . . . . . .
Wheel and Tire 3F- 4. . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE3F- 6 . . . . . . . . . . . . . . . .
Wheel 3F- 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire 3F- 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS3F- 8 . . . . . . . . . . . . . . . . . . . .
SECTION 3F
WHEELS AND TIRES
NOTE:
All wheel 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 the 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.
CONTENTS
GENERAL DESCRIPTION
TIRES
This vehicle is equipped with following tire. P215 / 65 R16, 215 / 65 R16 or 235 / 60 R16
The tires are of tubeless type. The tires are designed to operate satisfactorily with loads up to the full rated load
capacity when inflated to the recommended inflation pressure.
Correct tire pressures and driving habits have an important influence on tire life. Heavy cornering, excessively rapid
acceleration, and unnecessary sharp braking increase tire wear.
WHEELS
Standard equipment wheels are following steel wheel. 16 6 1 / 2 J or 16 7JJ
REPLACEMENT TIRES
When replacement is necessary, the original equipment type tire should be used. Refer to the Tire Placard. Re-
placement tires should be of the same size, load range and construction as those originally on the vehicle. Use
of any other size or type tire may affect ride, handling, speedometer / odometer calibration, vehicle ground clear-
ance and tire or snow chain clearance to the body and chassis.
NOTE:
Do not mix different types of tires on the same vehicle such as radial, bias and bias-belted tires except in
emergencies, because vehicle handling may be seriously affected and may result in loss of control.
It is recommended that new tires be installed in pairs on the same axle. If necessary to replace only one tire, it
should be paired with the tire having the most tread, to equalize braking traction.
YH4
GRAND
VITARA
3F-2 WHEELS AND TIRES
The metric term for tire inflation pressure is the kilopascal (kPa).
Tire pressures will usually be printed in both kPa and psi on the Tire
Placard. Metric tire gauges are available from tool suppliers. The
chart, left table, converts commonly used inflation pressures from
kPa to psi.kPakgf / cm2psi
160
180
200
220
240
260
280
300
320
3401.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.423
26
29
32
35
38
41
44
47
50
Conversion:1 psi = 6.895 kPa
1 kgf / cm
2 = 98.066 kPa
WHEELS REPLACEMENT
Wheels must be replaced if they are bent, dented, have excessive
lateral or radial runout, leak air through welds, have elongated bolt
holes, if lug nuts won't stay tight, or if they are heavily rusted.
Wheels with greater runout than shown in left figure may cause ob-
jectional vibrations.
Wheels for replacement must be equivalent to the originally
equipped wheels in load capacity, diameter, rim width, off-set and
mounting configuration. A wheel of improper size or type may affect
wheel and bearing life, brake cooling, speedometer / odometer cal-
ibration, ground clearance to the body and chassis.
To measure the wheel runout, it is necessary to use accurate dial
indicator. The tire may be on or off the wheel. The wheel should be
installed to the wheel balancer of the like for proper measurement.
Take measurements of both lateral runout and radial runout at both
inside and outside of the rim flange. With dial indicator set in place
securely, turn the wheel one full revolution slowly and record every
reading of the indicator.
When the measured runout exceeds the specification and correc-
tion by the balancer adjustment is impossible, replace the wheel.
If the reading is affected by welding, paint or scratch, it should be
ignored.
Lateral runout limit ªaº: 1.20 mm (0.047 in.)
Radial runout limit ªbº: 1.20 mm (0.047 in.)
METRIC LUG NUTS AND WHEEL STUDS
All models use metric lug nuts and wheel studs (size M12 x 1.25).
YH4
GRAND
VITARA
[A]: Before correction
[B]: Corrective weights
1. Heavy spot wheel tramp
2. Balance weights addition point
3. C / L of spindle
[C]: Before correction
[D]: Corrective weights
1. Heavy spot wheel shimmy
2. Balance weights addition point
3. C / L of spindle
WHEELS AND TIRES 3F-3
DIAGNOSIS
DIAGNOSIS TABLE
Refer to SECTION 3.
BALANCING WHEELS
There are two types of wheel and tire balance: static and dynamic.
Static balance, as shown in left figure, is equal distribution of weight
around wheel. Wheels that are statically unbalanced cause bounc-
ing action called tramp. This condition will eventually cause uneven
tire wear.
Dynamic balance, as shown in left figure, is equal distribution of
weight on each side of wheel centerline so that when the tire spins
there is no tendency for the assembly to move from side to side.
Wheels that are dynamically unbalanced may cause shimmy.
GENERAL BALANCE PROCEDURE
Deposits of mud, etc. must be cleaned from inside of rim.
WARNING:
Stones should be removed from tread in order to avoid operator injury during spin balancing and to
obtain good balance.
Tire should be inspected for any damage, then balanced according to equipment manufacturer's recommendation.
OFF-VEHICLE BALANCING
Most electronic off-vehicle balancers are more accurate than on-vehicle spin balancers. They are easy to use and
give a dynamic (two plane) balance. Although they do not correct for drum or disc unbalance as does on-vehicle
spin balancing, this is overcome by their accuracy, usually to within 1 / 8 ounce.
ON-VEHICLE BALANCING
ON-vehicle balancing methods vary with equipment and tool manufacturers. Be sure to follow each manufacturer's
instructions during balancing operation.
YH4
GRAND
VITARA
1. Paint
3F-4 WHEELS AND TIRES
Higher than Recommended Pressure Can Cause:
1. Hard ride
2. Tire bruising or carcass damage
3. Rapid tread wear at center of tire
Unequal Pressure on Same Axle Can Cause:
1. Uneven braking
2. Steering lead
3. Reduced handling
4. Swerve on acceleration
Valve caps should be kept on valves to keep dust and
water out.Lower than Recommended Pressure Can Cause:
1. Tire squeal on turns
2. Hard steering
3. Rapid and uneven wear on the edges of the tread
4. Tire rim bruises and rupture
5. Tire cord breakage
6. High tire temperatures
7. Reduced handling
8. High fuel consumption
MAINTENANCE AND MINOR ADJUSTMENTS
WHEEL AND TIRE
Wheel repairs that use welding, heating, or peening are not approved. All damaged wheels should be replaced.
STUDS
If a broken stud is found, see Section 3E (rear) or Section 3D (front) for Note and Replacement procedure.
MATCHED TIRES AND WHEELS
(For vehicle equipped with steel wheels)
Tires and wheels are matchmounted at the assembly plant.
This means that the radially stiffest part of the tire, or ªhigh spotº, is
matched to the smallest radius or ªlow spotº of the wheel.
This is done to provide the smoothest possible ride.
The ªhigh spotº of the tire is originally marked by paint dot on the
outboard sidewall. This paint dot will eventually wash off the tire.
The ªlow spotº of the wheel is originally marked by paint dot on the
wheel rim-flange. Properly assembled, the wheel rims' paint dot
should be aligned with the tires' paint dot as shown in left figure.
Whenever a tire is dismounted from its wheel, it should be re-
mounted so that the tire and wheel are matched. If the tire's paint
dot cannot be located, a line should be scribed on the tire and wheel
before dismounting to assure that it is remounted in the same posi-
tion.
INFLATION OF TIRES
The pressure recommended for any model is carefully calculated to give a satisfactory ride, stability, steering, tread
wear, tire life and resistance to bruises.
Tire pressure, with tires cold, (after vehicle has set for three hours or more, or driven less than one mile) should
be checked monthly or before any extended trip. Set to the specifications on the tire placard located on the side
of instrument panel.
It is normal for tire pressure increase when the tires become hot during driving. Do not bleed or reduce tire pressure
after driving. Bleeding reduces the ªCold Inflation Pressureº.
YH4
GRAND
VITARA
1. 4-way joint / 2-way joint
2. Master cylinder
3. LSPV
4. Right brake caliper
5. Left brake caliper
6. Right wheel cylinder
7. Left wheel cylinder
8. ABS actuator
: Air bleeding point [A]: Without ABS
[B]: With ABS
1. Plug cap2. Vinyl tube (See-through tube)
3. Container
[A]
[B]
BRAKES 5-7
CHECK AND ADJUSTMENT
BLEEDING BRAKES
CAUTION:
Brake fluid is extremely damaging to paint. If fluid should
accidentally touch painted surface, immediately wipe
fluid from paint and clean painted surface.
NOTE:
For vehicle equipped with ABS, make sure that ignition switch
turns off.
Be sure to bleed air of brake system according to following proce-
dure when its oil hydraulic circuit has been disconnected.
Hydraulic lines of brake system consists of two separate lines, one
for front wheel brakes and the other for rear wheel brakes.
Air bleeding is necessary at right and left front wheel brakes, left
rear wheel brake and LSPV (if equipped without ABS), i.e. 4 places
(3 places for vehicle with ABS) in all.
1) Fill master cylinder reservoir with brake fluid and keep at least
one-half full of fluid during bleeding operation.
2) Remove bleeder plug cap.
Attach a vinyl tube to bleeder plug of wheel cylinder, and insert
the other end into container.
3) Depress brake pedal several times, and then while holding it de-
pressed, loosen bleeder plug about one-third to one half turn.