2002 ISUZU AXIOM air condition

1A±122
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
In Car Sensor
865R200001
Legend
(1) Meter Cluster
(2) In Car Sensor
Removal
1. Disconnect the battery ground cable.
2. Remove the meter cluster.

Refer to
Instrument Panel Assembly in Body
Structure section.
3. Remove the in car sensor.
Installation
To install, follow the removal step in the reverse order.
Ambient Sensor
875R200018
Legend
(1) Ambient Sensor
(2) Ambient Sensor Connector
(3) Horn (LH)
Removal
1. Disconnect the battery ground cable.
2. Remove the horn (LH).
3. Disconnect the ambient sensor connector.
4. Remove the ambient sensor.
Installation
To install, follow the removal step in the reverse order.

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±123
Sun Sensor
865R200002
Legend
(1) Sun Sensor
(2) Center Cluster Upper
Removal
1. Disconnect the battery ground cable.
2. Remove the center cluster upper.
3. Disconnect the sun sensor connector.
4. Remove the sun sensor.
Installation
To install, follow the removal step in the reverse order.
Duct Sensor
874R200010
Legend
(1) Sensor Part
(2) Evaporator Core
(3) Duct Sensor Assembly
(4) Evaporator Assembly
Removal
1. Disconnect the battery ground cable.
2. Remove the evaporator assembly.

Refer to
evaporator assembly in this section.
3. Remove the duct sensor assembly.
Installation
To install, follow the removal step in the reverse order.

1A±124
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Mode Actuator
840R200005
Legend
(1) Driver Knee Bolster Assembly
(2) Instrument Panel Driver Lower Cover
Assembly
(3) Actuator Rod
(4) Mode Actuator
Removal
1. Disconnect the battery ground cable.
2. Remove the instrument panel driver lower cover
assembly.
3. Remove the driver knee bolster assembly.

Refer to the
Instrument Panel Assembly in Body
Structure section.
4. Remove the actuator rod.
5. Remove the mode actuator.
Installation
To install, follow the remove step in the reverse order.
Mix Actuator
840R200006
Legend
(1) Center Cluster Upper
(2) Center Cluster
(3) Knee Pad (RH)
(4) Actuator Rod
(5) Mix Actuator
(6) Knee Pad (LH)
(7) Audio & Switch Assembly
Removal
1. Disconnect the battery ground cable.
2. Remove the knee pad (R/RH).
3. Remove the center cluster upper.
4. Remove the center cluster.

Refer to the
Instrument Panel Assembly in Body
Structure section.
5. Disconnect the six connectors.
6. Remove the Audio & Switch Assembly.
7. Remove the actuator rod.
8. Remove the mix actuator.
Installation
To install, follow the remove step in the reverse order.

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±125
Intake Actuator
873R200003
Legend
(1) Evaporator Assembly
(2) Intake Actuator
(3) Intake Actuator Connector
Removal
1. Disconnect the battery ground cable.
2. Discharge and recover refrigerant.

Refer to
Refrigerant Recovery in this section.
3. Remove the evaporator assembly.

Refer to
Evaporator Assembly section.
4. Disconnect the intake actuator connector.
5. Remove the intake actuator.
Installation
To install, follow the remove step in the reverse order.

2A±2
POWER±ASSISTED STEERING SYSTEM
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.
Diagnosis
Since the problems in steering, suspension, wheels and
tires involve several systems, they must all be considered
when diagnosing a complaint. To identify the symptom,
always road test the vehicle first. Proceed with the follow-
ing preliminary inspections and correct any defects which
are found.
1. Inspect tires for proper pressure and uneven wear.
2. Raise vehicle on a hoist, then inspect front and rear
suspension and steering linkage for loose or
damaged parts.
3. Spin the front wheels. Inspect for out-of-round tires,
out-of-balance tires, loose and/or rough wheel
bearings.
General Diagnosis
ConditionPossible causeCorrection
Vehicle PullsMismatched or uneven tires.Replace tire.
Tires not adequately inflated.Adjust tire pressure.
Broken or sagging springs.Replace spring.
Radial tire lateral force.Replace tire.
Improper wheel alignment.Adjust wheel alignment.
Brake dragging in one wheel.Repair brake.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension part(s).
Faulty shock absorbers.Replace shock absorber.
Parts in power steering valve
defective.Replace power steering unit.
Abnormal or Excessive Tire WearSagging or broken spring.Replace spring.
Tire out of balance.Balance or replace tire.
Improper wheel alignment.Check front end alignment.
Faulty shock absorber.Replace shock absorber.
Hard driving.Replace tire.
Overloaded vehicle.Replace tire and reduce load.
Tires not rotated periodically.Replace or rotate tire.
Worn or loose road wheel bearings.Replace wheel bearing.
Wobbly wheel or tires.Replace wheel or tire.
Tires not adequately inflated.Adjust the pressure.

POWER±ASSISTED STEERING SYSTEM2A±3
Condition CorrectionPossible cause
Wheel HopBlister or bump on tire.Replace tire.
Improper shock absorber operation.Replace shock absorber.
Shimmy, Shake or VibrationTire or wheel out of balance.Balance wheels or replace tire/or
wheel.
Loose wheel bearings.Replace wheel bearing.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Excessive wheel run±out.Repair or replace wheel and/or tire.
Blister or bump on tire.Replace tire.
Excessive loaded radial run±out of
tire/wheel assembly.Replace tire or wheel.
Improper wheel alignment.Check wheel alignment.
Loose or worn steering linkage.Tighten or replace steering linkage.
Loose steering unit.Tighten steering unit.
Tires not adequately inflated.Adjust tire pressure.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension parts.
Faulty shock absorber.Replace shock absorber.
Hub bearing preload misadjustment.Adjust preload.
Parts in power steering valve
defective.Replace power steering unit.
Hard SteeringBind in steering linkage ball studs,
upper or lower end ball joint.Replace ball joint.
Improper wheel alignment.Check wheel alignment.
Tire not adequately inflated.Inflate tires to proper pressure.
Bind in steering column or shaft.Repair or replace.
Improper power steering system
operation.Repair or replace.
Refer to
Power steering system
diagnosis
Too Much Play In SteeringWheel bearings worn.Replace wheel bearings.
Loose steering unit or linkage.Retighten or repair.
Worn or loose steering shaft
universal joint.Retighten or replace steering shaft.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Poor Steering Wheel ReturnabilityBind in steering linkage ball joints.Replace ball joints.
Bind in upper or lower end ball joints.Replace ball joints.
Bind in steering column and shaft.Repair or replace.
Bind in steering gear.Check and repair steering gear.
Improper wheel alignment.Adjust wheel alignment.
Tires not adequately inflated.Adjust tire pressure.
Loose steering wheel nut.Retighten.
Worn wheel bearing.Replace.

2A±4
POWER±ASSISTED STEERING SYSTEM
Condition CorrectionPossible cause
Abnormal NoiseWorn, sticky or loose upper or lower
ball joint, steering linkage ball joints
or drive axle joints.Replace.
Faulty shock absorbers.Replace.
Worn upper or lower control arm
bushing.Replace.
Loose stabilizer bar.Retighten bolts or replace bushings.
Loose wheel nuts.Tighten nuts. Check for elongated
wheel nut holes.
Replace wheel if required.
Loose suspension bolts or nuts.Retighten suspension bolts or nuts.
Broken or otherwise damaged wheel
bearings.Replace wheel bearing.
Broken suspension springs. Replace spring.
Loose steering unit. Retighten mounting bolt.
Faulty steering unit.Replace steering unit.
Wandering or Poor Steering StabilityMismatched or unevenly worn tires.Replace tire or inflate tires to proper
pressure.
Loose steering linkage ball joints.Replace ball joints.
Faulty shock absorbers.Replace shock absorber.
Loose stabilizer bar.Tighten or replace stabilizer bar or
bushings.
Broken or sagging springs.Replace spring (pairs).
Improper wheel alignment.Adjust wheel alignment.
Erratic Steering When BrakingWorn wheel bearings.Replace wheel bearings.
Broken or sagging springs.Replace spring (pairs).
Leaking caliper.Repair or replace caliper.
Warped discs.Replace brake disc.
Badly worn brake pads.Replace brake pads.
Tires are inflated unequally.Inflate tires to proper pressure.

POWER±ASSISTED STEERING SYSTEM2A±5
Power Steering System
There is some noise in all power steering systems. One
of the most common is a hissing sound when the steering
wheel is fully turned and the car is not moving. This noise
will be most evident when the steering wheel is operated
while the brakes are applied. There is no relationshipbetween this noise and steering performance. Do not
replace the valve unless the ªhissingº noise is extremely
objectionable. A replacement valve will also have a slight
noise, and is not always a cure for the condition.
Condition
Possible causeCorrection
Rattle or Chucking NoisePressure hose touching other parts
of vehicle.Adjust hose position. Do not bend
tubing by hand.
Tie rod ends loose.Tighten or replace tie rod end.
Loose steering unit mounting.Tighten steering unit mounting.
Poor Return of Steering Wheel to
Center
Improper front wheel alignment.Adjust front wheel alignment.
CenterWheel bearing worn.Replace front wheel bearing.
Tie rod end binding.Replace tie rod end.
Ball joint binding.Replace ball joint.
Tight or frozen steering shaft
bearing.Replace steering assembly.
Sticky or plugged steering unit valve.Flush or replace steering unit.
Entry of air in the power steering
system.Bleed the system.
Momentary Increase In Effort When
Turning Wheel Fast To Right or Left
High internal leakage.Repair steering gear.
Turning Wheel Fast To Right or LeftPower steering fluid level low.Replenish fluid.
Steering Wheel Surges or Jerks
When Turning Especially During
Insufficient pump pressure.Repair pump assembly.
When Turning Especially During
Parkin
gSticky steering unit valve.Flush or replace steering unit.Parking
Power steering fluid level low.Replenish fluid.
Excessive Wheel Kick Back or Loose
Steering
Air in system.Bleed hydraulic system.
SteeringTie rod end loose.Tighten tie rod end.
Wheel bearing worn.Replace wheel bearing.
Hard Steering or Lack or Power
Assist
Sticky steering unit valve.Flush or replace steering unit.
AssistInsufficient pump pressure.Repair pump assembly.
Excessive internal pump leakage.Repair pump assembly.
Excessive internal steering gear
leakage.Repair steering gear.
Power steering fluid level low.Replenish fluid.
Unstable Engine Idling or Stalling
When TurningPressure switch of the power
steering pump or its harness is faulty.Repair or replace.