service ISUZU AXIOM 2002 Service Owner's Guide

INTELLIGENT SUSPENSION3F±5
Vertical G-Sensor
Front G-sensors installed inside front actuators and the
rear G-sensor installed on the rear left frame side detect
the vehicle vertical gravity and send a signal to the Control
Unit.
Lateral G-Sensor
The G-sensor installed inside the Control Unit detects the
vehicle turning speed and sends a signal to the Control
Unit.
Acronyms and Abbreviations
Several acronyms and abbreviations are commonly used
throughout this section:
BATT
Battery
DLC
Data Link Connector
DTC
Diagnostic Trouble Code
FL
Front Left
FR
Front Right
GND
Ground
HARN
Harness
IG
Ignition
PCM
Powertrain Control Module
RL
Rear Left
RR
Rear Right
SW
Switch
W/L
Warning Lamp
Vout
Voltage output
General Diagnosis
General Information
Intelligent Suspension Control troubles can be classified
into two types, those which can be detected by the
warning lamp and those which can be detected as a
vehicle abnormality by the driver.
In either case, locate the fault in accordance with
theªBASIC DIAGNOSTIC FLOWCHARTº and repair.
Please refer to
Section 3 for the diagnosis of mechanical
troubles such as abnormal noise, vehicle pulls, excessive
tire wear, wheel hop and shimmy, shake or vibration.
Service Precautions
Required Tools and Items:

Box Wrench

Special Tool
Some diagnosis procedures in this section require the
installation of a special tool.
J-39200 High Impedance Multimeter
When circuit measurements are requested, use a
circuit tester with high impedance.
Computer System Service Precautions
The Intelligent Suspension Control interfaces directly
with the Control Unit which is a control computer that is
similar in some regards to the Powertrain Control Module.
These modules are designed to withstand normal current
draws associated with vehicle operation. However care
must be taken to avoid overloading any of the Control Unit
circuits. In testing for opens or shorts, do not ground or
apply voltage to any of the circuits unless instructed to do
so by the appropriate diagnostic procedure. These
circuits should only be tested with a high impedance
multimeter (J-39200) or special tools as described in this
section. Power should never be removed or applied to
any control module with the ignition in the ªONº
position.Before removing or connecting battery cables,
fuses or connectors, always turn the ignition switch to
theªOFFº position.
General Service Precautions
The following are general precautions which should be
observed when servicing and diagnosing the Intelligent
Suspension Control and/or other vehicle systems. Failure
to observe these precautions may result in Intelligent
Suspension Control damage.

If welding work is to be performed on the vehicle using
an electric arc welder, the Control Unit connectors
should be disconnected before the welding operation
begins.

The Control Unit connectors should never be
connected or disconnected with the ignitionªONº.
Parts Handling
Be careful when handling the actuator, control unit, or
G-sensor. They should not be dropped or thrown,
because the semi-conductor G-sensor tip damage may
result.

4A1±1 DIFFERENTIAL (FRONT)
AXIOM
DRIVELINE/AXLE
CONTENTS
Differential (Front) 4A1. . . . . . . . . . . . . . . . . . . . . . .
Differential (Rear) 4A2. . . . . . . . . . . . . . . . . . . . . . .
Driveline Control System 4B1. . . . . . . . . . . . . . . . . Driveline Control System (TOD) 4B2. . . . . . . . . . .
Drive Shaft System 4C. . . . . . . . . . . . . . . . . . . . . .
Transfer Case (TOD) 4D2. . . . . . . . . . . . . . . . . . . .
Differential (Front)
CONTENTS
Service Precaution 4A1±1. . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle 4A1±2. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis 4A1±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Shaft Oil Seal 4A1±3. . . . . . . . . . . . . . . . . . . . .
Pinion Shaft Oil Seal and Associated Parts 4A1±3
Removal 4A1±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A1±4. . . . . . . . . . . . . . . . . .
Installation 4A1±4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Assembly 4A1±5. . . . . . . . . . . . . . .
Front Drive Axle Assembly and
Associated Parts 4A1±5. . . . . . . . . . . . . . . . . . . . . .
Removal 4A1±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 4A1±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Assembly 4A1±8. . . . . . . . . . . . . . . . . . . .
Disassembled View 4A1±8. . . . . . . . . . . . . . . . . . . .
Disassembly 4A1±9. . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly 4A1±11. . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Cage Assembly 4A1±20. . . . . . . . . . . . . . .
Disassembled View 4A1±20. . . . . . . . . . . . . . . . . . . .
Disassembly 4A1±20. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A1±21. . . . . . . . . . . . . . . . . .
Reassembly 4A1±21. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 4A1±23. . . . . . . . . . .
Special Tools 4A1±25. . . . . . . . . . . . . . . . . . . . . . . . . .
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 REFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFOMATION. 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 specification. Following these
instructions can help you avoid damage to parts and
systems.

DIFFERENTIAL (REAR)4A2±1
AXIOM
DRIVELINE/AXLE
Differential (Rear)
CONTENTS
Service Precaution 4A2±1. . . . . . . . . . . . . . . . . . . . . .
General Description 4A2±2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 4A2±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle Housing 4A2±5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle Housing and Associated Parts 4A2±5. . . . . .
Removal 4A2±5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4A2±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle Shaft, Oil Seal and Bearing 4A2±7. . . . . . . . . .
Axle Shaft and Associated Parts 4A2±7. . . . . . . . .
Removal 4A2±8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 4A2±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4A2±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Oil Seal 4A2±10. . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Oil Seal and Associated Parts 4A2±10. . . . .
Removal 4A2±10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2±11. . . . . . . . . . . . . . . . . .
Installation 4A2±11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Assembly 4A2±13. . . . . . . . . . . . . . . . . . . .
Disassembled View 4A2±13. . . . . . . . . . . . . . . . . . . .
Inspecting the Axle Before Disassembly 4A2±14. .
Disassembly 4A2±14. . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair 4A2±16. . . . . . . . . . . . . . . . . .
Reassembly 4A2±16. . . . . . . . . . . . . . . . . . . . . . . . . .
Side Bearing Preload Adjustment 4A2±20. . . . . . . .
Pinion Installation 4A2±21. . . . . . . . . . . . . . . . . . . . . .
Determination of Backlash & Preload Shims 4A2±22
Backlash Adjustment 4A2±23. . . . . . . . . . . . . . . . . . .
Gear Tooth Pattern Check 4A2±23. . . . . . . . . . . . . .
Adjustments Affecting Tooth Contact 4A2±24. . . . .
Differential Case Assembly 4A2±25. . . . . . . . . . . . . . .
Disassembled View 4A2±25. . . . . . . . . . . . . . . . . . . .
Disassembly 4A2±26. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2±26. . . . . . . . . . . . . . . . . .
Reassembly 4A2±26. . . . . . . . . . . . . . . . . . . . . . . . . .
Limited Slip Differential Assembly 4A2±27. . . . . . . . .
Disassembled View 4A2±27. . . . . . . . . . . . . . . . . . . .
Disassembly 4A2±27. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2±29. . . . . . . . . . . . . . . . . .
Reassembly 4A2±29. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data And Specifications 4A2±31. . . . . . . . . . . . .
Special Tools 4A2±32. . . . . . . . . . . . . . . . . . . . . . . . . . .
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 REFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFOMATION. 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 specification. Following these
instructions can help you avoid damage to parts and
systems.

4A2±2DIFFERNTIAL (REAR)
General Description
The rear axle assembly is of the semi±floating type in
which the vehicle weight is carried on the axle housing .
The center line of the pinion gear is below the center line
of the ring gear (hypoid drive).
All parts necessary to transmit power from the propeller
shaft to the rear wheels are enclosed in a salisbury type
axle housing (a carrier casting with tubes pressed and
welded into the carrier). A removable aluminum cover at
the rear of the axle housing permits rear axle service
without removal of the entire assembly from the vehicle.
The 8.9 inch ring gear rear axle uses a conventional ring
and pinion gear set to transmit the driving force of the
engine to the rear wheels. This gear set transfers this
driving force at a 90 degree angle from the propeller shaft
to the drive shafts.
The axle shafts are supported at the wheel end of the
shaft by a roller bearing.
The pinion gear is supported by two tapered roller
bearings. The pinion depth is set by a shim pack located
between the gear end of the pinion and the roller bearing
that is pressed onto the pinion. The pinion bearing
preload is set by crushing a collapsible spacer between
the bearings in the axle housing.
The ring gear is bolted onto the differential case with 10
bolts.
The differential case is supported in the axle housing by
two tapered roller bearings. The differential and ring gear
are located in relationship to the pinion by using selective
shims and spacers between the bearing and the
differential case. To move the ring gear, shims are deleted
from one side and an equal amount are added to the other
side. These shims are also used to preload the bearings
which are pressed onto the differential case. Two bearing
caps are used to hold the differential into the rear axle
housing.
The differential is used to allow the wheels to turn at
different rates of speed while the rear axle continues to
transmit the driving force. This prevents tire scuffing
when going around corners and prevents premature wear
on internal axle parts.
The rear axle is sealed with a pinion seal, a seal at each
axle shaft end, and by a liquid gasket between the rear
cover and the axle housing.
Limited Slip Differential (LSD)
The axle assembly may be equipped with an limited slip
differential (LSD). It is similar to the standard differential
except that part of the torque from the ring gear is
transmitted through clutch packs between the side gears
and differential case.
The LSD construction permits differential action when
required for turning corners and transmits equal torque to
both wheels when driving straight ahead. However, when
one wheel tries to spin due to a patch of ice, etc., the
clutch packs automatically provide more torque to the
wheel which is not trying to spin.
In diagnosing customer complaints, it is important to
recognize two things:
1. If, both wheels slip, with unequal traction, the LSD
has done all it can possibly do.
2. In extreame cases of differences in traction, the
wheel with the least traction may spin after the LSD
has transferred as much torque as possible to the
non-slipping wheel.
Limited Slip Differntials impose additional requirements
on lubricants, and require a special lubricant or lubricant
additive. Use 80W90 GL±5 LSD lubricant.
Rear Axle Identification
The Bill of Material and build date information(1) is
stamped on the right axle tube on the rearward side.
The axle ratio is identified by a tag(3) which is secured by
a cover bolt. If the axle has limited-slip differntial, it also
will be identified with a tag(2) secured by a cover bolt.
425RX001

4A2±16DIFFERNTIAL (REAR)
16. Remove exciter ring.

Remove the exciter ring from the differential using a
mallet or a brass hammer if it is required.
NOTE: Discard the exciter ring after removal.
425RS097
Cleaning
Do not steam clean drive parts which have ground and
polished surfaces such as gears, bearings, and shafts.
These parts should be cleaned in a suitable solvent. All
parts should be disassembled before cleaning.
Parts should be thoroughly dried immediately after
cleaning. Use soft, clean, lintless rags. Parts may be dried
with cimpressed air. Do not allow the bearings to spin
while drying them with compressed air.
Inspection and Repair
It is very important to carefully and thoroughly inspect all
drive unit parts before reassembly.
Thorough inspection of the drive parts for wear or stress
and subsequent replacement of worn parts will eliminate
costly drive component repair after reassembly.
Axle Housing

The carrier bore for nicks or burrs that would prevent
the outer diameter of the pinion seal from sealing,
Remove any burrs that are found.

The bearing cap bores for nicks or burrs.
Remove any burrs that are found.

The housing for cracks. Replace the housing if any
cracks are found.

The housing for foreign material such as metal chips,
dirt, or rust.
Pinion and Ring Gear

Pinion and ring gear teeth for cracking, chipping,
scoring, or excessive wear.

Pinion splines for wear.

Pinion flange splines for wear.
The sealing surface of the pinion flange for nicks,
burrs, or rough tool marks which would cause
damage to the seal's inside diameter and result in an
oil leak.

Replace all worn or broken parts.

Ring and pinion gears are matched sets and are both
replaced anytime a replacement of either is
necessary.
Bearings

Bearings visually and by feel.

The bearings should feel smooth when oiled and
rotated while applying as much hand pressure as
possible.
The large end of the bearing rollers for wear.
This is where tapered roller bearing wear is most
evident.

Bearing cups for wear, cracks, brinelling and scoring.

Bearing and cups are only replaced as sets.

If the rear axle was operated for an extended period of
time with very loose bearings, the ring gear and drive
pinion will also require replacement.

Low mileage bearings may have minute scratches
and pits on the rollers and the bearing cups from the
initial pre-load. Do not replace a bearing for this
reason.

Bearing cups for cracks or chips.
Shims

Shims for cracks and chips. Damaged shims should
be replaced with an equally sized service shim.
Reassembly
1. Install pinion bearing races and baffle plate using
outer bearing race installer J±8611±01 / inner bearing
race installer J±42836 and drive handle J±8592.
NOTE: Baffle plate must be installed, when install the
inner pinion bearing race.
425RW019

4A2±28DIFFERNTIAL (REAR)
4. Assemble clutch pack unloading tool .
a. Install cap J±34174±1 to the bottom differential
side gear.
b. Install threaded screw cap J±34174±2 to top
differential side gear. Thread forcing screws
J±22342±15 into threaded screw cap until it
becomes centered into the bottom cap.
901RW153
c. Tighten forcing screw until tight enough to collapse
dished spacers and allow looseness between side
and pinion mate gears.
5. Both pinion mate gear thrust washers using a shim
stock (1) of 0.51 mm (0.020 in.) or equivalent tool to
push out washers.
425RW007
6. Relieve tension of dished spacers by loosening
forcing screw.NOTE:

You may have to adjust the forcing screw slightly to
allow the case to rotate.
7. Assemble LSD service adapter J±39834 onto long
drive handle J±8592.Insert it into differential shaft
hole of case. Pull on handle and rotate case until
pinion mate gears can be removed.
901RW068
8. Remove pinion mate gears.
9. Hold side gear top clutch pack (1) with one hand and
remove positraction unloading tools.
425RW008
10. Remove top side gear and clutch pack.
NOTE:

Keep the stack of plates and discs intact and in
exactly the same position while they are being
removed.
11. Remove case from holder. Turn case with flange or
ring gear side up to allow side gear and clutch pack to
be removed from case.

4A2±30DIFFERNTIAL (REAR)
9. While holding gears in place, insert LSD service
adapter J±39834 with long drive handle J±8592 in
differential shaft hole of case. Pull on long drive
handle J±8592 and rotate case, allowing gears to
turn. Make sure that holes in pinion mate gears align
with holes in case.
901RW070

It may be necessary to adjust tension on forcing
screw to rotate case.
10. Tighten forcing screw to compress the clutch packs,
to allow installation of spherical thrust washers.
11. Lubricate spherical thrust washers (2), and assemble
into case (1). Use a small screw driver to push
washers into place. Remove tools.
425RW012
12. Position differential shaft in case and drive in with
hammer. Be sure lock pin hole of differential shaft (5)
is properly aligned to allow installation of lock pin (3).
Be sure that thrust washers and differential pinion
mate gears are aligned with the differential case (4).
Install new lock pin to proper depth using a punch.
Stake metal of case over pin in two places, 180
degrees apart.
425RW013

DIFFERENTIAL (REAR)4A2±33
ILLUSTRATIONTOOL NO.
TOOL NAME
J±39837±1
Disc (2 required)
J±23597±1
Arbor
J±42828
Installer; Pinion bearing
J±21784
Installer; Side bearing
J±39602
Remover; Outer bearing
J±24385±B
Spreader
ILLUSTRATIONTOOL NO.
TOOL NAME
J±39858
Clutch pack unloading
tool kit Includes
J±34174±1/J±34174±2
Screw cap and Cap
J±22342±15
Forcing screw
J±39834
Limited±slip differential
(LSD) service adapter
J±39824
Holder
J±39836
Side bearing preload
master bearings

4B1±1
DRIVELINE CONTROL SYSTEM
AXIOM
DRIVELINE/AXLE
DRIVELINE CONTROL SYSTEM
CONTENTS
Service Precaution 4B1±1. . . . . . . . . . . . . . . . . . . . . .
Shift On The Fly System 4B1±2. . . . . . . . . . . . . . . . .
Outline of Shift on The Fly System 4B1±2. . . . . . . . .
Functions of Indicator Lamp 4B1±4. . . . . . . . . . . . . .
Shift On The Fly Electrical Equipment 4B1±5. . . . . .
Axle Shaft Connection and Disconnection 4B1±5. . Shift On The Fly Controller 4B1±7. . . . . . . . . . . . . . .
Shift On The Fly Controller and
Associated Parts 4B1±7. . . . . . . . . . . . . . . . . . . . . .
Removal 4B1±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4B1±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.

4B2±1
DRIVE LINE CONTROL SYSTEM (TOD)
AXIOM
DRIVELINE/AXLE
DRIVELINE CONTROL SYSTEM (TOD)
CONTENTS
Service Precaution 4B2±1. . . . . . . . . . . . . . . . . . . . . .
General Description 4B2±2. . . . . . . . . . . . . . . . . . . . .
Transfer Position and Drive Mode 4B2±2. . . . . . . .
TOD Control 4B2±3. . . . . . . . . . . . . . . . . . . . . . . . . .
TOD Indicator Control 4B2±3. . . . . . . . . . . . . . . . . .
Abbreviations 4B2±3. . . . . . . . . . . . . . . . . . . . . . . . .
System Components 4B2±4. . . . . . . . . . . . . . . . . . . .
Parts Location 4B2±4. . . . . . . . . . . . . . . . . . . . . . . .
Front and Rear Speed Sensors 4B2±5. . . . . . . . . .
Electromagnetic Coil 4B2±5. . . . . . . . . . . . . . . . . . .
Multi Plate Disk Clutch Pack 4B2±5. . . . . . . . . . . .
Mechanical Lock Sleeve 4B2±5. . . . . . . . . . . . . . . .
High-Low Planetary Gear Set 4B2±6. . . . . . . . . . .
4H and 4L Switch 4B2±6. . . . . . . . . . . . . . . . . . . . . .
Transfer Connector (12-pin type) 4B2±6. . . . . . . .
Transfer Connector (8-pin type) 4B2±6. . . . . . . . .
TOD Indicator Lamps
(on the instrument panel) 4B2±7. . . . . . . . . . . . . .
Check Lamp 4B2±7. . . . . . . . . . . . . . . . . . . . . . . . . .
TOD ECU 4B2±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Low Shift Motor 4B2±9. . . . . . . . . . . . . . . . . . .
Motor Position and Encoder Position Code 4B2±10
Encode Position Plate 4B2±10. . . . . . . . . . . . . . . . . .
Shift High Range and Low Range 4B2±10. . . . . . . . Functions of TOD Switch and Indicator
Lamp 4B2±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOD Switch and Indication of Drive Mode 4B2±11.
Check Lamp 4B2±13. . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis 4B2±14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information Diagnosis 4B2±14. . . . . . . . . .
Self-diagnosis 4B2±14. . . . . . . . . . . . . . . . . . . . . . . . .
Precautions on Diagnosis 4B2±16. . . . . . . . . . . . . . .
Basic Diagnostic Flow Chart 4B2±18. . . . . . . . . . . . . .
Parts Location 4B2±19. . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Diagram 4B2±20. . . . . . . . . . . . . . . . . . . . . . . . .
Connector List 4B2±24. . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Failed Pin 4B2±26. . . . . . . . . . . . . . . . . . . . .
Connector Pin Assignment 4B2±26. . . . . . . . . . . . . .
Reference 4B2±28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Failed TOD Control Unit Pin 4B2±30. . . . .
Tech 2 Scan Tool 4B2±32. . . . . . . . . . . . . . . . . . . . . .
Getting Started 4B2±33. . . . . . . . . . . . . . . . . . . . . . . .
Operating Procedure 4B2±33. . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Codes 4B2±35. . . . . . . . . . . . . . . .
Diagnosis from Trouble Codes 4B2±36. . . . . . . . . . . .
Trouble Diagnosis Depending on The Status
of TOD Indicator 4B2±67. . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis from Symptom 4B2±102. . . . . . . . . . . . . . . . .
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.