2002 ISUZU AXIOM ABS

0A±12
GENERAL INFORMATION
Abbreviations Charts
List of automotive abbreviations which may be used
in this manual
A Ð Ampere(s)
ABS Ð Antilock Brake System
AC Ð Alternating Current
A/C Ð Air Conditioning
ACCEL Ð Accelerator
ACC Ð Accessory
ACL Ð Air Cleaner
Adj Ð Adjust
A/F Ð Air Fuel Ratio
AIR Ð Secondary Air Injection System
Alt Ð Altitude
AMP Ð Ampere(s)
ANT Ð Antenna
ASM Ð Assembly
A/T Ð Automatic Transmission/Transaxle
ATDC Ð After Top Dead Center
ATF Ð Automatic Transmission Fluid
Auth Ð Authority
Auto Ð Automatic
BARO Ð Barometric Pressure
Bat Ð Battery
B+ Ð Battery Positive Voltage
Bbl Ð Barrel
BHP Ð Brake Horsepower
BPT Ð Backpressure Transducer
BTDC Ð Before Top Dead Center

C Ð Degrees Celsius
CAC Ð Charge Air Cooler
Calif Ð California
cc Ð Cubic Centimeter
CID Ð Cubic Inch Displacement
CKP Ð Crankshaft Position
CL Ð Closed Loop
CLCC Ð Closed Loop Carburetor Control
CMP Ð Camshaft Position
CO Ð Carbon Monoxide
Coax Ð Coaxial
Conn Ð Connector
Conv Ð Converter
Crank Ð Crankshaft
Cu. In. Ð Cubic Inch
CV Ð Constant Velocity
Cyl Ð Cylinder(s)
DI Ð Distributor Ignition
Diff Ð Differential
Dist Ð Distributor
DLC Ð Data Link Connector
DOHC Ð Double Overhead Camshaft
DTC Ð Diagnostic Trouble Code
DTM Ð Diagnostic Test Mode
DTT Ð Diagnostic Test Terminal
DVM Ð Digital Voltmeter (10 meg.)
DVOM Ð Digital Volt Ohmmeter
EBCM Ð Electronic Brake Control Module
ECM Ð Engine Control Module
ECT Ð Engine Coolant Temperature
EEPROM Ð Electronically Erasable Programmable
Read Only Memory
EGR Ð Exhaust Gas Recirculation
EI Ð Electronic Ignition
ETR Ð Electronically Tuned Receiver
EVAP Ð Evaporation EmissionExh Ð Exhaust

F Ð Degrees Fahrenheit
Fed Ð Federal (All States Except Calif.)
FF Ð Front Drive Front Engine
FL Ð Fusible Link
FLW Ð Fusible Link Wire
FP Ð Fuel Pump
FRT Ð Front
ft Ð Foot
FWD Ð Front Wheel Drive
4WD Ð Four Wheel Drive
4 x 4 Ð Four Wheel Drive
4 A/T Ð Four Speed Automatic Transmission/Transaxle
Gal Ð Gallon
GEN Ð Generator
GND Ð Ground
Gov Ð Governor
g Ð Gram
Harn Ð Harness
HC Ð Hydrocarbons
HD Ð Heavy Duty
Hg Ð Hydrargyrum (Mercury)
HiAlt Ð High Altitude
HO2S Ð Heated Oxygen Sensor
HVAC Ð Heater±Vent±Air±Conditioning
IAC Ð Idle Air Control
IAT Ð Intake Air Temperature
IC Ð Integrated Circuit / Ignition Control
ID Ð Identification / Inside Diameter
IGN Ð Ignition
INJ Ð Injection
IP Ð Instrument Panel
IPC Ð Instrument Panel Cluster
Int Ð Intake
ISC Ð Idle Speed Control
J/B Ð Junction Block
kg Ð Kilograms
km Ð Kilometers
km/h Ð Kilometer per Hour
kPa Ð Kilopascals
kV Ð Kilovolts (thousands of volts)
kW Ð Kilowatts
KS Ð Knock Sensor
L Ð Liter
lb ft Ð Foot Pounds
lb in Ð Inch Pounds
LF Ð Left Front
LH Ð Left Hand
LR ÐLeft Rear
LS Ð Left Side
LWB Ð Long Wheel Base
L±4 Ð In±Line Four Cylinder Engine
MAF Ð Mass Air Flow
MAN Ð Manual
MAP Ð Manifold Absolute Pressure
Max Ð Maximum
MC Ð Mixture Control
MFI Ð Multiport Fuel Injection
MIL Ð Malfunction Indicator Lamp
Min Ð Minimum
mm Ð Millimeter
MPG Ð Miles Per Gallon
MPH Ð Miles Per Hour
M/T Ð Manual Transmission/Transaxle
MV Ð Millivolt

0B±11 MAINTENANCE AND LUBRICATION
Recommended Liquid Gasket
TypeBrand NameManufacturerRemarks
RTV*
Silicon Base
Three Bond 1207B
Three Bond 1207C
Three Bond 1215
Three Bond 1280
Three Bond 1281Three Bond
Three Bond
Three Bond
Three Bond
Three BondFor Engine Repairs
For Axle Case
Repairs T/M
Repairs T/M
Water BaseThree Bond 1141EThree BondFor Engine Repairs
Solvent
Three Bond 1104
Belco Bond 4
Belco Bond 401
Belco Bond 402Three Bond
Isuzu
Isuzu
Isuzu
For Engine Repairs
Anaerobic
LOCTITE 515
LOCTITE 518
LOCTITE 17430Loctite
Loctite
Loctite
All
* RTV: Room Temperature Vulcanizer
NOTE:
1. It is very important that the liquid gaskets listed above
or their exact equivalent be used on the vehicle.
2. Be careful to use the specified amount of liquid
gasket.
Follow the manufacturer's instructions at all times.
3. Be absolutely sure to remove all lubricants and
moisture from the connecting surfaces before
applying the liquid gasket.
The connecting surfaces must be perfectly dry.
4. Do not apply LOCTITE 17430, LOCTITE 515 and
LOCTITE 518 between two metal surfaces having a
clearance of greater than 0.25 mm (0.01 in). Poor
adhesion will result.
Recommended Thread Locking
Agents
LOCTITE TypeLOCTITE Color
LOCTITE 242Blue
LOCTITE 262Red
LOCTITE 271Red
Application Steps
1. Completely remove all lubricant and moisture from
the bolts and the female-threaded surfaces of the
parts to be joined.
The surfaces must be perfectly dry.
2. Apply LOCTITE to the bolts.
F00RW014
3. Tighten the bolts to the specified torque.
After tightening, be sure to keep the bolts free from
vibration and torque for at least an hour until
LOCTITE hardens.
NOTE: When the application procedures are specified in
this manual, follow them.

1A±34
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
3. If the leak is still present, discharge and recover the
refrigerant from the system.
4. Replace the O-rings.

O-rings cannot be reused. Always replace with new
ones.

Be sure to apply the specified compressor oil to the
new O-rings.
5. Retighten the refrigerant line fitting to the specified
torque.

Use two wrenches to prevent twisting and damage
to the line.
6. Evacuate, charge and retest the system.
Leaks In The Hose
If the compressor inlet or outlet hose is leaking, the entire
hose must be replaced. The refrigerant hose must not be
cut or spliced for repair.
1. Locate the leak.
2. Discharge and recover the refrigerant.
3. Remove the hose assembly.

Cap the open connections at once.
4. Connect the new hose assembly.

Use two wrenches to prevent twisting or damage to
the hose fitting.

Tighten the hose fitting to the specified torque.
5. Evacuate, charge and test the system.
Compressor Leaks
If leaks are located around the compressor shaft seal or
shell, replace or repair the compressor.
Recovery, Recycling, Evacuation and
Charging of HFC-134a
Air conditioning systems contain HFC-134a. This is a
chemical mixture which requires special handling
procedures to avoid personal injury.

Always wear safety goggles and protective gloves.

Always work in a well-ventilated area. Do not weld or
steam clean on or near any vehicle-installed air
conditioning lines or components.

If HFC-134a should come in contact with any part of
the body, flush the exposed area with cold water and
immediately seek medical help.

If it is necessary to transport or carry any container of
HFC-134a in a vehicle, do not carry it in the
passenger compartment.

If it is necessary to fill a small HFC-134a container
from a large one, never fill the container completely.
Space should always be allowed above the liquid for
expansion.

HFC-134a and R-12 should never be mixed as their
compositions are not the same.

HFC-134a PAG oil tends to absorb moisture more
quickly than R-12 mineral oil and, therefore, should
be handled more carefully.

Keep HFC-134a containers stored below 40
C
(104
F).WARNING:

SHOULD HFC-134A CONTACT YOUR EYE(S),
CONSULT A DOCTOR IMMEDIATELY.

DO NOT RUB THE AFFECTED EYE(S). INSTEAD,
SPLASH QUANTITIES OF FRESH COLD WATER
OVER THE AFFECTED AREA TO GRADUALLY
RAISE THE TEMPERATURE OF THE
REFRIGERANT ABOVE THE FREEZING POINT.

OBTAIN PROPER MEDICAL TREATMENT AS
SOON AS POSSIBLE. SHOULD THE HFC-134A
TOUCH THE SKIN, THE INJURY MUST BE
TREATED THE SAME AS SKIN WHICH HAS BEEN
FROSTBITTEN OR FROZEN.
Refrigerant Recovery
The refrigerant must be discharged and recovered by
using the J-39500 (ACR4:HFC-134a Refrigerant
Recovery/Recycling/Recharging/System) or equivalent
before removing or mounting air conditioning parts.
1. Connect the high and low charging hoses of the
ACR
4(or equivalent) as shown below.
901R100022
Legend
(1) Low Side
(2) High Side
2. Recover the refrigerant by following the
Manufacturer's Instructions.
3. When a part is removed, put a cap or a plug on the
connecting portion so that dust, dirt or moisture
cannot get into it.

1A±36
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
3. Connect the low pressure charging hose of the
manifold gauge to the low pressure side service valve
of the vehicle.
4. Connect the high pressure charging hose of the
manifold gauge to the high pressure side service
valve of the vehicle.
901R100021
Legend
(1) Low Side
(2) High Side
(3) Refrigerant Container
(4) Weight Scale
5. Place the refrigerant container(3) up right on a weight
scale(4).
Note the total weight before charging the refrigerant.
a. Open the refrigerant container valve.
b. Open the low side vale on the manifold gauge set.
Refer to the manufacturer's instructions for a
weight scale charging station.
901RS144
6. Perform a system leak test:

Charge the system with approximately 200 g
(0.44 lbs) of HFC-134a.

Make sure the high pressure valve of the manifold
gauge is closed.

Check to ensure that the degree of pressure does
not change.

Check for refrigerant leaks by using a HFC-134a
leak detector.

If a leak occurs, recover the refrigerant. Repair the
leak and start all over again from the first step of
evacuation.
7. If no leaks are found, continue charging refrigerant to
the air conditioning system.

Charge the refrigerant until the scale reading
decreases by the amount of the charge specified.
Specified amount: 700 g (1.54 lbs)

If charging the system becomes difficult:
1. Run the engine at idle and close all the vehicle
doors.
2. Turn A/C switch ªONº.
3. Set the fan switch to its highest position.
4. Set the air source selector lever to ªCIRCº.
5. Slowly open the low side valve on the manifold
gauge set.
WARNING: BE ABSOLUTELY SURE NOT TO OPEN
THE HIGH PRESSURE VALVE OF THE MANIFOLD
GAUGE. SHOULD THE HIGH PRESSURE VALVE BE
OPENED, THE HIGH PRESSURE REFRIGERANT
WOULD FLOW BACKWARD, AND THIS MAY CAUSE
THE REFRIGERANT CONTAINER TO BURST.

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±59
Compressor Oil
Oil Specification

The HFC-134a system requires a synthetic (PAG)
compressor oil whereas the R-12 system requires a
mineral compressor oil. The two oils must never be
mixed.

Compressor (PAG) oil varies according to
compressor model. Be sure to use oil specified for the
model of compressor.

Always use HFC-134a Vane Rotary Type
Compressor Oil (AIPDN Part No.2-90188-301-0)
Handling of Oil

The oil should be free from moisture, dust, metal
powder, etc.

Do not mix with other oil.

The water content in the oil increases when exposed
to the air. After use, seal oil from air immediately.
(HFC-134a Vane Rotary Compressor Oil absorbs
moisture very easily.)

The compressor oil must be stored in steel
containers, not in plastic containers.
Compressor Oil Check
The oil used to lubricate the compressor is circulating with
the refrigerant.
Whenever replacing any component of the system or a
large amount of gas leakage occurs, add oil to maintain
the original amount of oil.
Oil Capacity
Capacity total in system: 150cc (5.0 fl.oz)
Compressor (Service parts) charging amount:
150 cc (5.0 fl.oz)
Checking and Adjusting Oil Quantity
for Used Compressor
1. Perform oil return operation. Refer to Oil Return
Operation in this section.
2. Discharge and recover refrigerant and remove the
compressor.
3. Drain the compressor oil and measure the extracted
oil with a measuring cylinder.
4. If the amount of oil drained is much less than 90 cc
(3.0 fl. oz.), some refrigerant may have leaked out.
Conduct a leak tests on the connections of each
system, and if necessary, repair or replace faulty
parts.
5. Check the compressor oil contamination. (Refer to
Contamination of Compressor Oil in this section.)
6. Adjust the oil level following the next procedure
below.(Charging Amount)
(Collected Amount)
more than 90cc (3.0
fl.oz)same as collected
amount
less than 90 cc (3.0 fl.oz)90cc (3.0 fl.oz)
7. Install the compressor, then evacuate, charge and
perform the oil return operation.
8. Check system operation.
When it is impossible to preform oil return operation,
the compressor oil should be checked in the
following order:
1. Discharge and recover refrigerant and remove the
compressor.
2. Drain the compressor oil and measure the extracted
oil with a measuring cylinder.
3. Check the oil for contamination.
4. If more than 90 cc (3.0 fl. oz.) of oil is extracted from
the compressor, supply the same amount of oil to the
compressor to be installed.
5. If the amount of oil extracted is less than 90 cc (3.0 fl.
oz.), recheck the compressor oil in the following
order.
6. Supply 90 cc (3.0 fl. oz.) of oil to the compressor and
install it onto the vehicle.
7. Evacuate and recharge with the proper amount of
refrigerant.
8. Perform the oil return operation.
9. Remove the compressor and recheck the amount of
oil.
10. Adjust the compressor oil, if necessary.
(Collected Amount)
(Charging Amount)
more than 90 cc (3.0
fl.oz)same as collected
amount
less than 90 cc (3.0 fl.oz)90 cc (3.0 fl.oz)

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.