ISUZU AXIOM 2002 Service Repair Manual

9A±10SEAT BELT SYSTEM
Child Seat Lower Anchorage Striker
Child Seat Lower Anchorage Striker
and Associated Parts
755R200007
Legend
(1) Rear Seat Back Assembly
(2) Release Knob
(3) Headrest
(4) Front Luggage Floor Carpet(5) Seat Lock Cover
(6) Lower Anchorage Striker (LH)
(7) Lower Anchorage Striker (RH)
(8) Body Floor Panel
(9) Rear Seat Cushion Assembly
Removal
1. Raise the seat cushion assembly (2).

Pull the strap (1) of the rear seat lock assembly to
release the seat lock.
755R100006

SEAT BELT SYSTEM9A±11
2. Remove the headrests.
3. Pull the release knobs and fall down the seat back
assembly forward.
4. Remove the seat lock covers.

Remove the three fixing screws from each seat lock
cover.
5. Remove the front luggage floor carpets.

Pull the nine carpet fixing clips from the backside of
the seat back assembly.
6. Remove the four lower anchorage strikers.

Remove the two fixing bolts of each lower
anchorage striker.
Installation
To install, follow the removal steps in the reverse order,
noting the following points.
1. Install the lower anchorage strikers with matching the
inside of the tab and the trim edge of the body floor
panel.
755R100008
2. Tighten the lower anchorage striker fixing bolts to the
specified torque.
Torque: 25 N´m (18 lb ft)

9A±12SEAT BELT SYSTEM
Main Data and Specifications
Torque Specifications
760R200018

SEAT BELT SYSTEM9A±13
760R200012

SUPPLEMENTAL RESTRAINT SYSTEM9J±1
AXIOM
RESTRAINTS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
CONTENTS
Service Precaution 9J±2. . . . . . . . . . . . . . . . . . . . . .
General Description 9J±2. . . . . . . . . . . . . . . . . . . . .
Restraint Devices 9J±2. . . . . . . . . . . . . . . . . . . . . .
System Description 9J±3. . . . . . . . . . . . . . . . . . . .
SRS Component and Wiring Location View 9J±4
Component Description 9J±4. . . . . . . . . . . . . . . . . .
SDM (Sensing and Diagnostic Module) 9J±4. . .
ªAir Bagº Warning Lamp 9J±5. . . . . . . . . . . . . . . .
SRS Coil Assembly 9J±5. . . . . . . . . . . . . . . . . . . .
Air Bag Assemblies 9J±5. . . . . . . . . . . . . . . . . . . .
Steering Column 9J±6. . . . . . . . . . . . . . . . . . . . . .
Knee Bolster 9J±6. . . . . . . . . . . . . . . . . . . . . . . . . .
Definition 9J±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis 9J±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Codes 9J±7. . . . . . . . . . . . . .
Scan Tool Diagnostics 9J±7. . . . . . . . . . . . . . . . . .
Use of Special Tools 9J±8. . . . . . . . . . . . . . . . . . .
SRS Connector Body Face Views 9J±8. . . . . . . . .
Repairs and Inspections Required After an
Accident 9J±8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accident With Deployment ± Component
Replacement and Inspections 9J±9. . . . . . . . . .
Accident With or Without
DeploymentÐComponent Inspection 9J±9. . . .
SDM Replacement Guidelines 9J±9. . . . . . . . . .
Wiring Damage 9J±9. . . . . . . . . . . . . . . . . . . . . . .
SRS Connector (Plastic Body And
Terminal Metal Pin) Damage 9J±9. . . . . . . . . . .
SRS Wire Pigtail Damage 9J±9. . . . . . . . . . . . . .
On±Vehicle Service 9J±9. . . . . . . . . . . . . . . . . . . . . .
Service Precautions 9J±9. . . . . . . . . . . . . . . . . . .
Disabling The SRS 9J±9. . . . . . . . . . . . . . . . . . . .
Enabling The SRS 9J±9. . . . . . . . . . . . . . . . . . . . .
Handling / Installation / Diagnosis 9J±10. . . . . . . .
Air Bag Assembly Handling / Shipping
/ Scrapping 9J±10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Live (Undeployed) Air Bag Assembly 9J±10. . . . .
Air Bag Assembly Shipping Procedure For
Live (Undeployed) Air Bag Assemblies 9J±11. . .
Deployed Air Bag Assembly 9J±11. . . . . . . . . . . .
Air Bag Assembly Scrapping Procedure 9J±11. .
Deployment Outside Vehicle
(Driver Air Bag Assembly) 9J±11. . . . . . . . . . . . . .
Deployment Outside Vehicle
(Passenger Air Bag Assembly) 9J±13. . . . . . . . . Deployment Inside Vehicle
(Vehicle Scrapping Procedure) 9J±15. . . . . . . . . .
Deployed Air Bag Assembly Handling 9J±18. . . .
Special Tools 9J±18. . . . . . . . . . . . . . . . . . . . . . . . . . .
J±41433 SRS Driver/Passenger Load Tool 9J±18
J±39200 DVM 9J±19. . . . . . . . . . . . . . . . . . . . . . . . .
Scan Tool 9J±19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J±35616±A Connector Test Adapter Kit 9J±19. . .
J±42986 SRS Deployment Tool 9J±19. . . . . . . . .
J±42987 SRS Adapter For Load Tool 9J±20. . . . .
J±41497 SRS Deployment Fixture 9J±20. . . . . . .
Tech 2 Scan Tool 9J±21. . . . . . . . . . . . . . . . . . . . . .
DTC Modes 9J±24. . . . . . . . . . . . . . . . . . . . . . . . . . .
Plottong Snapshot Graph 9J±24. . . . . . . . . . . . . . . . .
Plotting Graph Flow Chart (Plotting graph
after obtaining vehicle information) 9J±25. . . . . .
Flow Chart for Snapshot Replay
(Plotting Graph) 9J±26. . . . . . . . . . . . . . . . . . . . . . .
Service Precaution 9J±27. . . . . . . . . . . . . . . . . . . . . .
Disabling The SRS 9J±27. . . . . . . . . . . . . . . . . . . .
Enabling The SRS 9J±27. . . . . . . . . . . . . . . . . . . . .
Handling / Installation / Diagnosis 9J±27. . . . . . . .
Inspections Required After An Accident 9J±27. .
Sensing and Diagnostic Module (SDM) 9J±28. . . .
Service Precautions 9J±28. . . . . . . . . . . . . . . . . . .
Removal 9J±28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9J±29. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Air Bag Assembly 9J±29. . . . . . . . . . . . . . . . .
Service Precautions 9J±29. . . . . . . . . . . . . . . . . . .
Removal 9J±29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9J±30. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel 9J±30. . . . . . . . . . . . . . . . . . . . . . . . .
Service Precautions 9J±30. . . . . . . . . . . . . . . . . . .
Removal 9J±30. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9J±31. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS Coil Assembly 9J±32. . . . . . . . . . . . . . . . . . . . . .
Service Precaution 9J±32. . . . . . . . . . . . . . . . . . . .
Removal 9J±32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9J±32. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Column 9J±34. . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution 9J±34. . . . . . . . . . . . . . . . . . . .
Removal 9J±34. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 9J±35. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Air Bag Assembly 9J±36. . . . . . . . . . . . .
Service Precaution 9J±36. . . . . . . . . . . . . . . . . . . .

SUPPLEMENTAL RESTRAINT SYSTEM 9J±2
Removal 9J±36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 9J±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
CAUTION: When fasteners are removed, always
reinstall them at the same location from which they
were removed. If a fastener needs to be replaced, use
the correct part number fastener for that application.
If the correct part number fastener is not available, a
fastener of equal size and strength (or stronger) may
be used. fasteners that are not reused, and those
requiring thread locking compound will be called
out. The correct torque value must be used when
installing fasteners that require it. If the above
conditions are not followed, parts or system damage
could result.
Restraint Devices
827RS035
Legend
(1) Deployed Air Bag
(2) Knee Bolster
(3) Seat Belt
The Supplemental Restraint System (SRS) helps
supplement the protection offered by the driver and front
passenger seat belts by deploying an air bag from the
center of the steering wheel and from the top of the right
side of the instrument panel.
The air bag deploys when the vehicle is involved in a
frontal crash of sufficient force up to 30 degrees off the
centerline of the vehicle. To further absorb the crash
energy there is a knee bolster located beneath the
instrument panel for both the driver and passenger, and
the steering column is collapsible.
827RS036

SUPPLEMENTAL RESTRAINT SYSTEM9J±3
System Description
The SRS consists of the Sensing and Diagnostic Module
(SDM), the driver air bag assembly, the SRS coil
assembly, the passenger air bag assembly, and the ªAIR
BAGª warning lamp in the instrument cluster. The SDM,
SRS coil assembly (driver side only), driver air bag
assembly, passenger air bag assembly and connector
wire make up the deployment loops. The function of the
deployment loops is to supply current through air bag
assembly, which will cause deployment of the air bags in
the event of a frontal crash of sufficient force, up to 30
degrees off the centerline of the vehicle. The air bagassemblies are only supplied enough current to deploy
when the SDM detects vehicle velocity changes severe
enough to warrant deployment.
The SDM contains a sensing device which converts
vehicle velocity change to an electrical signal. The
electrical signal generated is processed by the SDM and
then compared to a value stored in memory. When the
generated signal exceeds the stored value, the SDM will
cause current to flow through the air bag assembly
deploying the air bags.
D09R200001

SUPPLEMENTAL RESTRAINT SYSTEM 9J±4
SRS Component and Wiring Location
View
060R200036
Legend
(1) Battery
(2) Relay & Fuse Box
(3) Passenger Air Bag Assembly
(4) SDM
(5) Meter Assembly
(6) SRS Coil Assembly
(7) Driver Air Bag Assembly
(8) Starter Switch
(9) Fuse Box, SRS±1
Component Description
SDM (Sensing and Diagnostic Module)
WARNING:DURING SERVICE PROCEDURES, BE
VERY CAREFUL WHEN HANDLING A SENSING AND
DIAGNOSTIC MODULE (SDM). NEVER STRIKE OR
JAR THE SDM. NEVER POWER UP THE SRS WHEN
THE SDM IS NOT RIGIDLY ATTACHED TO THE
VEHICLE. ALL SDM AND MOUNTING BRACKET
FASTENERS MUST BE CAREFULLY TORQUED AND
THE ARROW MUST BE POINTED TOWARD THE
FRONT OF THE VEHICLE TO ENSURE PROPER
OPERATION OF THE SRS. THE SDM COULD BE
ACTIVATED WHEN POWERED WHILE NOT RIGIDLYATTACHED TO THE VEHICLE WHICH COULD CAUSE
DEPLOYMENT AND RESULT IN PERSONAL INJURY.
The Sensing and Diagnostic Module (SDM) is designed
to perform the following functions in the SRS:
1. Energy Reserve Ð The SDM maintains 24±Volt Loop
Reserve (24VLR) energy supply to provide
deployment energy when ignition voltage is lost in a
frontal crash.
2. Frontal Crash Detection Ð The SDM monitors
vehicle velocity changes to detect frontal crashes
which are severe enough to warrant deployment.
3. Air Bag Deployment Ð When a frontal crash of
sufficient force is detected, the SDM will cause
enough current to flow through the air bag assembly
to deploy the air bag.
4. Malfunction Detection Ð The SDM performs
diagnostic monitoring of SRS electrical components
and sets a diagnostic trouble code when a
malfunction is detected.
5. Frontal Crash Recording Ð The SDM records
information regarding SRS status during frontal
crash.
6. Malfunction Diagnosis Ð The SDM displays SRS
diagnostic trouble codes and system status
information through the use of a scan tool.
7. Driver Notification Ð The SDM warns the vehicle
driver of SRS malfunctions by controlling the ªAir
Bagº warning lamp.
The SDM is connected to the SRS wiring harness by a
24±pin connector. This harness connector uses a
shorting clip across certain terminals in the contact area.
This shorting clip connects the ªAIR BAGº warning lamp
to ground when the SDM harness connector is
disconnected or CPA (Connector Position Assurance) is
not inserted even if completely connected. This will
cause the ªAIR BAGº warning lamp to come ªONº steady
whenever the ignition switch is at the ON or START
positions with the SDM disconnected.
827RW023

SUPPLEMENTAL RESTRAINT SYSTEM9J±5
ªAir Bagº Warning Lamp
Ignition voltage is applied to the ªAIR BAGº warning lamp
when the ignition switch is at the ON or START positions.
The SDM controls the lamp by providing ground with a
lamp driver. The ªAIR BAGº warning lamp is used in the
SRS to do the following:
1. Verify lamp and SDM operation by flashing SEVEN
(7) times when the ignition switch is first turned ªONº.
2. Warn the vehicle driver of SRS electrical system
malfunctions which could potentially affect the
operation of the SRS. These malfunctions could
result in nondeployment in case of a frontal crash or
deployment for conditions less severe than intended.
The ªAIR BAGº warning lamp is the key to driver
notification of SRS malfunctions. For proper lamp
operation, refer to the ªSRS Diagnostic System Checkº in
this section.
060R200035
SRS Coil Assembly
The SRS coil assembly consists of two current carrying
coils. This is attached to the steering column and allow
rotation of the steering wheel while maintaining
continuous contact of the driver deployment loop to the
driver air bag assembly.
There is a shorting clip on the yellow 2±pin connector near
the base of steering column which connects the SRS coil
to the SRS wiring harness.
The shorting clip shorts to the SRS coil and driver air bag
assembly when the yellow 2±pin connector is
disconnected. The circuit to the driver air bag assembly is
shorted in this way to help prevent unwanted deployment
of the air bag when servicing the steering column or other
SRS components.
825RS071
Air Bag Assemblies
The air bag assembly consist of an inflatable air bag
assembly and an inflator (a canister of gas±generating
material and an initiating device). When the vehicle is in a
frontal crash of sufficient force.
The SDM causes current flow through the deployment
loops. Current passing through the inflator ignites the
material in the air bag assembly. The gas produced from
this reaction rapidly inflates the air bag assembly.
There is a shorting clip on the driver air bag assembly
connector which connects the SRS coil assembly. The
shorting clip shorts across the driver air bag assembly
circuits when driver air bag assembly connector is
disconnected.
The circuit to the driver air bag assembly is shorted in this
way to help prevent unwanted deployment of the air bag
when servicing the driver air bag assembly, the steering
column or other SRS components.
827RX001

SUPPLEMENTAL RESTRAINT SYSTEM 9J±6
There is a shorting clip on the passenger air bag
assembly connector which connects to the SRS harness.
The shorting clip shorts across the passenger air bag
assembly circuit when the passenger air bag assembly
connector is disconnected. The circuit to the passenger
air bag assembly is shorted in this way to help prevent
unwanted deployment of the air bag when servicing the
passenger air bag assembly, the instrument panel or
other SRS components.
827RY00001
Legend
(1) Passenger Air Bag Door
(2) Passenger Air Bag Assembly
(3) Passenger Air Bag Harness
(4) Cross Beam
Steering Column
The steering column absorbs energy and is designed to
compress in a frontal crash to decrease the chance of
injury to the driver.
431R200006
Knee Bolster
The knee bolsters are used to absorb energy to protec
knees and control the forward movement of the vehicle's
front seat occupants during a frontal crash, by limiting leg
movement.
740RS021
Definition
Air Bag
An inflatable cloth cushion designed to deploy in certain
frontal crashes. It supplements the protection offered by
the seat belts by distributing the impact load more evenly
over the vehicle occupant's head and torso.
Asynchronous
Performed in a nonperiodic fashion, (i. e., no defined time
or interval).
(B+)
Battery voltage, (B+) The voltage available at the battery
at the time of the indicated measurement. With the key
ªONº and the engine not running, the system voltage will
likely be between 12 and 12.5 volts. At idle the voltage
may be 14 to 16 volts. The voltage could be as low as 10
volts during engine cranking.
Bulb Check
The SDM will cause the ªAIR BAGº warning lamp to flash
seven times and then go ªOFFº whenever the ignition
switch transitions to the ON position from any other
ignition switch position and no malfunctions are detected.
ªCONTINUOUS MONITORINGº
Tests performed by the SDM on the SRS every 100
milliseconds while ªIgnition 1º voltage is in the normal
operating voltage range at the SDM.
Data Link Connector (DLC)
Formerly ªDLCº a connector which allows communication
with an external computer, such as a scan tool.
Datum Line
A base line parallel to the plane of the underbody or frame
from which all vertical measurements originate.