Isuzu Trooper (1998-2002 year). Manual - part 1081

SUPPLEMENTAL RESTRAINT SYSTEM

9J–11

Handling / Installation / Diagnosis

1. Air bag assembly should not be subjected to

temperatures above 93

°

C (200

°

F).

2. Air bag assembly, and SDM should not be used if they

have been dropped from a height of 100 centimeters
(3.28 feet) or more.

3. When a SDM is replaced, it must be oriented with the

arrow on the sensor pointing toward the front of the
vehicle.  It is very important for the SDM to be located
flat on the mounting surface, parallel to the vehicle
datum line.  It is important that the SDM mounting
surface is free of any dirt or other foreign material.

4. Do not apply power to the SRS unless all components

are connected or a diagnostic chart requests it, as this
will set a diagnostic trouble code.

5. The “SRS Diagnostic System Check” must be the

starting point of any SRS diagnostics.  The “SRS
Diagnostic System Check” will verify proper “AIR
BAG” warning lamp operation and will lead you to the
correct chart to diagnose any SRS malfunctions.
Bypassing these procedures may result in extended
diagnostic time, incorrect diagnosis, and incorrect
parts replacement.

Air Bag Assembly Handling /
Shipping / Scrapping

Live (Undeployed) Air Bag Assembly

Special care is necessary when handling and storing a
live (undeployed) air bag assembly.  The rapid gas
generation produced during deployment of the air bag
could cause the air bag assembly, or an object in front of
the air bag assembly, to be thrown through the air in the
unlikely event of an accidental deployment.

827RV004

WARNING: WHEN CARRYING A LIVE AIR BAG
ASSEMBLY, MAKE SURE THE BAG OPENING IS
POINTED AWAY FROM YOU.  IN CASE OF AN
ACCIDENTAL DEPLOYMENT, THE BAG WILL THEN
DEPLOY WITH MINIMAL CHANCE OF INJURY.
NEVER CARRY THE AIR BAG ASSEMBLY BY THE

WIRES OR CONNECTOR ON THE UNDERSIDE OF
THE MODULE.

Pretensioner Seat Belt Handling /
Shipping / Scrapping.

Live (undeployed) pretensioner seat belt.

Special care is necessary when handling and storing a
live (undeployed) pretensioner seat belt.
The rapid gas generation produced during deployment of
the pretensioner seat belt (could cause the pretensioner
seat belt), or an object around of pretensioner seat belt, to
be thrown through the air in the unlikely event of an
accidental deployment.

WARNING: WHEN CARRYING A LIVE
PRETENSIONER SEAT BELT, MAKE SURE THE
PRETENSIONER SEAT BELT CYLINDER IS POINTED
AWAY FROM YOU. IN CASE OF AN ACCIDENTAL
DEPLOYMENT, THE PRETENSIONER SEAT BELT
WILL THEN DEPLOY WITH MINIMAL CHANCE OF
INJURY. NEVER CARRY THE PRETENSIONER SEAT
BELT BY THE CYLINDER OR WIRES ON THE
UNDERSIDE OF THE MODULE.

827RS044

Air Bag Assembly and/or Pretensioner
Seat Belt Shipping Procedure For
Live(Undeployed) Them.

Service personnel should refer to the Service Bulletins for
proper SRS composition parts shipping procedures.

SUPPLEMENTAL RESTRAINT SYSTEM

9J–12

Deployed Air Bag Assembly (Driver Side)

“You should wear gloves and glasses. After the air bag
assembly has been deployed, the surface of the air bag
may contain solid particulate. This solid particulate
consists primarily of by products of the chemical reaction,
Potassium Chloride and copper metal dust. Compounds
of Potassium Borate, Strontium Chloride, Copper
Chloride, and Ammonium Chloride may be found in
amounts of about 1% (each) of the total particulate.”

Deployed Pretensioner Seat Belt.

You should wear gloves and safety glasses. After the
pretensioner seat belt has been deployed, the surface of
the pretensioner seat belt cylinder may heating up.

Air Bag Assembly and/or Pretensioner
Seat Belt Scrapping Procedure.

During the cause of vehicle’s useful life, certain situations
may arise which will necessitate the disposal of a live air
bag and/or pretensioner seat belt. (This information
covers proper procedures for disposing of a live air bag
assembly and/or pretensioner seat belt.)
Before a live air bag assembly can be dispose off, it must
be deployed.
A live air bag assembly and/or pretensioner seat belt
must not be disposed of though normal refuse channels.

WARNING: FAILURE TO FOLLOW PROPER
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR
BAG ASSEMBLY DISPOSAL PROCEDURES CAN
RESULT IN AIR BAG DEPLOYMENT WHICH MAY
CAUSE PERSONAL INJURY.  AN UNDPLOYED AIR
BAG ASSEMBLY MUST NOT BE DISPOSED OF
THROUGH NORMAL REFUSE CHANNELS.  THE
UNDEPLOYED AIR BAG ASSEMBLY CONTAINS
SUBSTANCES THAT CAN CAUSE SEVERE ILLNESS
OR PERSONAL INJURY IF THE SEALED CONTAINER
IS DAMAGED DURING DISPOSAL.  DISPOSAL IN
ANY MANNER INCONSISTENT WITH PROPER
PROCEDURES MAY BE A VIOLATION OF  LOCAL
LAW.

In situations which require deployment of a live air bag
assembly, deployment may be accomplished inside or
outside the vehicle.  The method employed depends
upon the final disposition of the particular vehicle, as
noted in “Deployment Outside Vehicle” and “Deployment
Inside Vehicle” in this section.

Cautions About Air Bag Deployment And
Disposal

Failure to follow proper procedures could result in
erroneous air bag deployment which may cause personal
injury be sure to follow proper procedures.

1. Turn off (Lock) the ignition switch and disconnect the

minus terminal of the battery, then start the work 15 or
more sec later. (Air bag is designed to work by the
back-up power source even if the battery power
source is cut off at vehicle collision).

2. Be sure not to disassemble the air bag.
3. Do not give an impact to the air bag and bring the air

bag close to magnet. (The air bag could deploy
unexpectedly).

4. Place the air bag with its trim cover up.
5. Do not let the air bag deploy directly on the floor. (The

air bag may be blown off 2 

∼

 3 m (6.5 or 10 feet)).

6. Be sure to install the air bag firmly to a deployment

tool (fixing tool).

7. Set a battery 10 m (33 feet) or more away from the air

bag.

8. Before disconnecting air bag harness, ground the

worker by touching the vehicle outer panel with bare
hand.

9. When connecting or disconnecting the harness, do

not work just in front of the air bag.

10. As deployment gives rise to big sound, warn the

people around against it. Further, try to reduce the
sound by covering the steering wheel or tires, and
shut the vehicle windows in case of deployment
inside the vehicle.

11. As deployment generates smoke, select a well

ventilated place. (In case of deployment indoors,
avoid deployment just under a fire alarm, smoke
sensor, and fluorescent lamps).

12. Be careful not to inhale the smoke after deployment.
13. If part of the vehicle glass is damaged, cover the

vehicle with a car cover to prevent the glass from
braking at the time of deployment.

14. Do not touch the air bag immediately after

deployment, since it remains hot for 30 minutes.

15. Do not water the air bag immediately after

deployment.

16. Wear safety glasses and gloves throughout the work

and wash the glasses and gloves after the work.

17. Do not reuse the removed air bag for another vehicle.

(Deployment characteristic is different with vehicle
types).

Deployment Outside Vehicle (Driver Air
Bag Assembly)

Deployment outside the vehicle is proper when the
vehicle is to be returned to service.  This includes, for
example, situations in which the vehicle will be returned to
useful service after a functionally or cosmetically deficient
air bag assembly is replaced.  Deployment and disposal
of a malfunctioning air bag assembly is, of course, subject
to any required retention period.
For deployment of a live (undeployed) air bag assembly
outside the vehicle, the deployment procedure must be
followed exactly.  Always wear safety glasses during this
deployment procedure until a deployed air bag assembly
is scrapped or until an undeployed air bag assembly is
shipped.  Before performing the procedures you should
be familiar with servicing the SRS and with proper
handling of the air bag assembly.  Procedures should be
read fully before they are performed.
The following procedure requires use of 5–8840–2468–0
SRS deployment harness with appropriate pigtail
adapter.  Do not attempt procedure without
5–8840–2468–0 adapter.

WARNING: FAILURE TO FOLLOW PROCEDURES IN
THE ORDER LISTED MAY RESULT IN PERSONAL
INJURY.  NEVER CONNECT DEPLOYMENT

SUPPLEMENTAL RESTRAINT SYSTEM

9J–13

HARNESS TO ANY POWER SOURCE BEFORE
CONNECTING DEPLOYMENT HARNESS TO THE
DRIVER AIR BAG ASSEMBLY.  DEPLOYMENT
HARNESS SHALL REMAIN SHORTED AND NOT BE
CONNECTED TO A POWER SOURCE UNTIL THE AIR
BAG IS TO BE DEPLOYED.  THE AIR BAG
ASSEMBLY WILL IMMEDIATELY DEPLOY THE AIR
BAG WHEN A POWER SOURCE IS CONNECTED TO
IT.  WEAR SAFETY GLASSES THROUGHOUT THIS
ENTIRE DEPLOYMENT AND DISPOSAL
PROCEDURE.

NOTE: This information applies only to driver air bag
assembly .  Refer to “Deployment Outside Vehicle
(Passenger Air Bag assembly)” in this section for
information on passenger air bag assembly scrapping.

1. Turn ignition switch to “LOCK”, remove key. 
2. Inspect 5–8840–2468–0 SRS Deployment Harness

and appropriate pigtail adapter for damage.  If
harness or pigtail adapter is damaged, discard and
obtain a replacement.

3. Short the two SRS deployment harness leads

together by fully seating one banana plug into the
other.  SRS deployment harness shall remain shorted
and not be connected to a power source until the air
bag is to be deployed.

827RS004

4. Connect the appropriate pigtail adapter to the SRS

deployment harness.

5. Remove the driver air bag assembly from vehicle.

Refer to “Inflator Module Removal” in this manual.

WARNING: WHEN STORING A LIVE AIR BAG
ASSEMBLY OR WHEN LEAVING A LIVE AIR BAG
ASSEMBLY UNATTENDED ON A BENCH OR OTHER
SURFACE, ALWAYS FACE THE AIR BAG AND TRIM
COVER UP AND AWAY FROM THE SURFACE.  THIS
IS NECESSARY SO THAT A FREE SPACE IS
PROVIDED TO ALLOW THE AIR BAG TO EXPAND IN
THE UNLIKELY EVENT OF ACCIDENTAL
DEPLOYMENT.  FAILURE TO FOLLOW
PROCEDURES MAY RESULT IN PERSONAL INJURY.

6. Place the driver air bag assembly on a work bench or

other surface away from all loose or flammable
objects with its trim cover facing up, away from the
surface.

827RV003

7. Clear a space on the ground about 183 cm (six feet) in

clearance where the driver air bag assembly is to be
deployed.  A paved, outdoor location where there is
no activity is preferred.  If an outdoor location is not
available, a space on the shop floor where there is no
activity and sufficient ventilation is recommended.
Ensure no loose or flammable objects are within the
deployment area.

827RX032

8. Place the driver air bag assembly, with its trim cover

facing up, on the ground in the space just cleared.

9. Stretch the SRS deployment harness and pigtail

adapter from the driver air bag assembly to its full
length.

SUPPLEMENTAL RESTRAINT SYSTEM

9J–14

10. Place a power source near the shorted end of the

SRS deployment harness.  Recommended
application: 12 volts minimum, 2 amps minimum.  A
vehicle battery is suggested.

11. Connect the driver air bag assembly to the pigtail

adapter on the SRS deployment harness.
Deployment harness shall remain shorted and not be
connected to a power source until the air bag is to be
deployed.  The driver air bag assembly will
immediately deploy the air bag when a power source
is connected to it.

NOTE: Ensure that the pigtail adapter is firmly seated into
the driver air bag assembly connector.  Failure to fully
seat the connectors may leave the shorting bar located in
the driver air bag assembly connector functioning
(shorted) and may result in nondeployment of the driver
air bag assembly.

12. Verify that the area around the driver air bag

assembly is clear of all people and loose or flammable
objects.

13. Verify that the driver air bag assembly is resting with

its trim cover facing up.

14. Notify all people in the immediate area that you intend

to deploy the driver air bag.  The deployment will be
accompanied by a substantial noise which may
startle the uninformed.

15. Separate the two banana plugs on the SRS

deployment harness.

NOTE: When the air bag deploys, the driver air bag
assembly may jump about 3 m (ten feet) vertically.  This
is a normal reaction of the driver air bag to the force of the
rapid gas expansion inside the air bag.

NOTE: When the air bag deploys, the rapid gas
expansion will create a substantial noise.  Notify all
people in the immediate area that you intend to deploy the
driver air bag.

WARNING: DEPLOYMENT HARNESS SHALL
REMAIN SHORTED AND NOT BE CONNECTED TO A
POWER SOURCE UNTIL THE AIR BAG IS TO BE
DEPLOYED.  THE AIR BAG ASSEMBLY WILL
IMMEDIATELY DEPLOY THE AIR BAG WHEN A
POWER SOURCE IS CONNECTED TO IT.
CONNECTING THE DEPLOYMENT HARNESS TO
THE POWER SOURCE SHOULD ALWAYS BE THE
LAST STEP IN THE AIR BAG ASSEMBLY
DEPLOYMENT PROCEDURE.  FAILURE TO FOLLOW
PROCEDURES IN THE ORDER LISTED MAY RESULT
IN PERSONAL INJURY.

16. Connect the SRS deployment harness wires to the

power source to immediately deploy the driver air
bag.  Recommended application: 12 volts minimum, 2
amps minimum.  A vehicle battery is suggested.

17. Disconnect the SRS deployment harness from the

power source.

18. Short the two SRS deployment harness leads

together by fully seating one banana plug into the
other.

19. In the unlikely event that the driver air bag assembly

did not deploy after following these procedures,
proceed immediately with Steps 24 through 26.  If the
driver air bag assembly did deploy, proceed with
Steps 20 through 23.

20. Put on a pair of shop gloves and safety glasses to

protect your hands and eyes from possible irritation
and heat when handling the deployed driver air bag
assembly. After the air bag assembly has been
deployed, the surface of the air bag may contain a
powdery residue.  This solid particulate consists
primarily of by products of the chemical reaction,
Potassium Chloride and copper metal dust.
Compounds of Potassium Borate, Strontium
Chloride, Copper Chloride, and Ammonium Chloride
may be found in amounts of about 1 % (each) of the
total particulate.

WARNING: SAFETY PRECAUTIONS MUST BE
OBSERVED WHEN HANDING A DEPLOYED AIR BAG
ASSEMBLY.   AFTER DEPLOYMENT, THE METAL
SURFACES OF THE AIR BAG ASSEMBLY WILL BE
VERY HOT.  ALLOW THE INFLATOR MODULE TO
COOL BEFORE HANDLING ANY METAL PORTION
OF IT. DO NOT PLACE THE DEPLOYED AIR BAG
ASSEMBLY NEAR ANY FLAMMABLE OBJECTS.
FAILURE TO FOLLOW PROCEDURES MAY RESULT
IN FIRE OR PERSONAL INJURY.

AFTER A DRIVER AIR BAG ASSEMBLY HAS BEEN
DEPLOYED, THE METAL CANISTER AND
SURROUNDING AREAS OF THE DRIVER AIR BAG
ASSEMBLY WILL BE VERY HOT. DO NOT TOUCH
THE METAL AREAS OF THE DRIVER AIR BAG
ASSEMBLY FOR ABOUT TEN MINUTES AFTER
DEPLOYMENT. IF THE DEPLOYED DRIVER AIR BAG
ASSEMBLY MUST BE MOVED BEFORE IT IS COOL,
WEAR GLOVES AND HANDLE BY THE AIR BAG OR
TRIM COVER.

21. Disconnect the pigtail adapter from the driver air bag

assembly as soon after deployment as possible.  This
will prevent damage to the pigtail adapter or SRS
deployment harness due to possible contact with the
hot driver air bag assembly canister.  The pigtail
adapter can be reused.  They should, however, be
inspected for damage after each deployment and
replaced if necessary.

22. Dispose of the deployed driver air bag assembly

through normal refuse channels after it has cooled for
at least 30 minutes.

23. Wash your hands with mild soap and water afterward.

NOTE: The remaining steps are to be followed in the
unlikely event that the driver air bag assembly did not
deploy after following these procedures.

24. Ensure that the SRS deployment harness has been

disconnected from the power source and that its two
banana plugs have been shorted together by fully
seating one banana plug into the other.

25. Disconnect the pigtail adapter from the driver air bag

assembly.

WARNING: WHEN STORING A LIVE AIR BAG
ASSEMBLY OR WHEN LEAVING A LIVE INFLATOR
MODULE UNATTENDED ON A BENCH OR OTHER