Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 1117

3E–12

WHEEL AND TIRE SYSTEM

Tire

Tire Replacement

When replacement is necessary, the original metric tire
size should be used. Most metric tire sizes do not have
exact corresponding alphanumeric tire sizes. 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 tire having the most tread, to
balance braking traction.

CAUTION: Do not mix different types of tires 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.

Tire Dismounting

Remove valve cap on valve stem and deflate the tire.
Then use a tire changing machine to mount or dismount
tires.
Follow the equipment manufacturer's instruction. Do
not use hand tools or tire lever alone to change tires as
they may damage the tire beads or wheel rim.

Tire Mounting

Rim bead seats should be cleaned with a wire brush or
coarse steel wool to remove lubricants, and light rust.
Before mounting a tire, the bead area should be well
lubricated with an approved tire lubricant.
After mounting, inflate the tire to 196kPa (28 psi) so that
beads are completely seated. Inflate the air to specified
pressure and install valve cap to the stem.

WARNING: NEVER STAND OVER TIRE WHEN
INFLATING. BEAD MAY BREAK WHEN BEAD
SNAPS OVER RIM'S SAFETY HUMP WHICHCAN
CAUSE SERIOUS PERSONA L INJURY.
NEVER EXCEED 240 KPA (35 PSI) PRESSURE
WHEN INFLATING. IF 240 KPA (35 PSI) PRESSURE
WILL NOT SEAT BEA DS, DEFLATE, RE-LUBRICATE
AND RE-INFLATE. OVER INFLATION MAY CAUSE
THE BEAD TO BREAK A ND CAUSE SERIOUS
PERSONAL INJURY.

Tire Repair

There are many different materials on the market used
to repair tires.
Manufacturers have published detailed instructions on
how and when to repair tires. These instructions can be
obtained from the tire manufacturer if they are not
included with the repair kit.

Wheel Inspection

Damaged wheels and wheels with excessive run-out
must be replaced.
Wheel run out at rim (Base on hub Bore):

480RS012

General Balance Procedure

Deposits of mud, etc. must be cleaned from the inside of
the rim.
The tire should be inspected for the following: match
mount paint marks, bent rims, bulges, irregular tire
wear, proper wheel size and inflation pressure. Then
balance according to the equipment manufacturer's
recommendations.
There are two types of wheel and tire balance.
Static balance is the equal distribution of weight around
the wheel.
Assemblies that are statically unbalanced cause a
bouncing action called tramp. This condition will
eventually cause uneven tire wear.

Steel

Aluminum

1– Vertical play

(AVERAGE OF EACH

SIDE):

Less than

1.5mm (0.059 in)

1– Vertical play

(AVERAGE OF EACH

SIDE):

Less than

0.40 mm (0.016in)

1– Vertical play

(INDIVIDUAL):

Less than

0.55 mm (0.022in)

2– Horizontal play

(INDIVIDUAL):

Less than

1.5mm (0.059 in)

2– Horizontal play

(INDIVIDUAL):

Less than

0.55 mm (0.022in)

WHEEL AND TIRE SYSTEM

3E–13

480RS013

EndOFCallout

Dynamic balance is the equal distribution of weight on
each side of the wheel center-line so that when the tire
spins there is no tendency for the assembly to move
from side to side. Assemblies that are dynamically
unbalanced may cause shimmy.

480RS014

EndOFCallout

WARNING: STONES SHOULD BE REMOVED FROM
THE TREAD TO AVOID OPERATOR INJURY DURING
SPIN BALANCING AND TO OBTAIN A GOOD
BALANCE.

Balancing Wheel and Tire

On-vehicle Balancing

On-Vehicle balancing methods vary with equipment and
tool manufacturers. Be sure to follow each
manufacturer's instructions during balancing operation.

Off-vehicle Balancing

Most electronic off-vehicle balancers are more accurate
than the on-vehicle spin balancers. They are easy to
use and give a dynamic balance. Although they do not
correct for drum or disc unbalance (as on- vehicle spin
balancing does), they are very accurate.

480RS015

Legend

(1) Heavy Spot Wheel Shimmy
(2) Add Balance Weights Here

Legend

(1) Heavy Spot Wheel Hop
(2) Add Balance Weights Here

3E–14

WHEEL AND TIRE SYSTEM

Main Data and Specifications

General Specifications

Torque Specifications

480R200010

Wheels

Size

16 x 7JJ

16 x 7JJ

18 x 7JJ

Offset

38.0 mm (1.50in)

38.0mm (1.50 in)

38.0 mm (1.50in)

P.C.D., wheel studs

139.7 mm (5.50 in)

139.7 mm (5.50in)

139.7 mm (5.50 in)

Standard tire

Size

P225/75R16

P245/70R16

P245/60R18

Pressure(Front)

200kPa (29psi)

180 kPa (26 psi)

180kPa (26psi)

Pressure(Rear)

200kPa (29psi)

180 kPa (26 psi)

180kPa (26psi)

INTELLIGENT SUSPENSION

3F–1

RODEO

SUSPENSION

CONTENTS

INTELLIGENT SUSPENSION CONTROL

Service Precaution. . . . . . . . . . . . . . . . . . . . .

3F–1

General Description . . . . . . . . . . . . . . . . . .

3F–1

General Diagnosis . . . . . . . . . . . . . . . . . . .

3F–4

DTC2 Actuator Coil Over Current . . . . . . . .

3F–16

DTC3 Actuator Coil/Position Sensor Open

Circuit or Short . . . . . . . . . . . . . . . . . . . . . .

3F–18

DTC4 G-Sensor Open Circuit or Short . . . .

3F–21

DTC5 Vehicle Speed Sensor Open Circuit

or Short . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–22

DTC6 Stop Lamp Switch Open Circuit or

Short. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–24

DTC7 Engine Speed Signal Open Circuit

or Short . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–26

Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–31

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–31

Installation. . . . . . . . . . . . . . . . . . . . . . . . . .

3F–32

Front Actuator . . . . . . . . . . . . . . . . . . . . . . . .

3F–33

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–34

Inspection and Repair. . . . . . . . . . . . . . . . .

3F–34

Installation. . . . . . . . . . . . . . . . . . . . . . . . . .

3F–34

Rear Shock Absorber . . . . . . . . . . . . . . . . . .

3F–35

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . .

3F–36

Inspection and Repair. . . . . . . . . . . . . . . . .

3F–36

Installation. . . . . . . . . . . . . . . . . . . . . . . . . .

3F–36

Service Precaution

WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE

SRS

COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE

SRS SERVICE INFORMATION. FAILURE TO

FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or
other corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.

General Description

Intellignet suspension control uses a microcomputer as
a control unit to judge running conditions including
engine revolution from Powertrain Control Module,
vehicle speed from vehicle speed sensor, a brake
switch signal, and vertical and lateral G-sensor signal,
then sets optimum damping force so that best running
stability can be achieved.
In addition two ride modes (i.e. “COMFORT" and
“SPOPT") can be selected according to the driver's
preference.

SECTION