1998 ISUZU TROOPER fuse

8D – 546 WIRING SYSTEM
Circuit Diagram (6VE1 South Africa)-1
D08RWB41
PASSENGER
INFLATOR
MODULEDATA LINK
CONNECTOR
I-9
24
SRS
WARNING
LIGHT
(METER)
SDM
3.0
B/Y STARTER SW
(IG1)
C-21 10A
0.5
L/Y FUSE C-10
I-915H-622
0.5
W/R0.5
W/R 0.75
B/RU-57
I-9
2
SRS
WARNING
LIGHT
(METER)
0.5
L/Y FUSE C-10(W/T.O.D)
I-926H-622
0.5
W/R0.5
W/RU-57
0.75
Y0.75
Y/B
U-5
3U-62
U-5
4U-6
SRS COIL
ASSEMBLY
DRIVER
INFLATOR
MODULE1
U-512
0.75
Y/G0.75
Y/R
0.5
B
U-5
15U-11
•Terminals marked with a star ( ) are gold plated.
U-5
16U-1
BODY-FRTCOMMON
CHAMBER 2
U-5
6
U-5
0.5
GR
0.5
GR
0.5
B/L
1.0
B/L 1.25
B/L 1H-612
13
U-2
C-63
U-5
0.5
O
0.5
GR0.5
O
0.5
O24H-611
H-652
H-651
9C-63
0.85
G/W
0.85
G/W
H-7 FUSE C-14
9
16C-63
5
C-63E-30H-514
0.5
B/LC-63
4

8D – 548 WIRING SYSTEM
Parts Location (RHD)
Legend
(1) I-9
(2) SRS Coil Assembly
(3) U-5
(4) U-1
(5) H-7, H-65
(6) C-16
(7) C-63(8) H-5
(9) E-30
(10) U-2
(11) Fuse Box
(12) Relay and Fuse Box
(13) H-61, H-62
(14) Fuse Box (C-21)
D08RW622
14
1
2345
6
7
8
9
10
11
12
13

WIRING SYSTEM 8D – 549
Parts Location (LHD)
Legend
(1) SRS Coil Assembly
(2) I-37
(3) C-63
(4) H-7
(5) Fuse Box (H-49)
(6) H-52
(7) H-51(8) C-16
(9) U-6
(10) U-5
(11) SDM
(12) U-2
(13) U-1
(14) Relay and Fuse Box
D08RW997
2 1
3
4
5 6 7 8
9 10
11 12 13 14

SUPPLEMENTAL RESTRAINT SYSTEM 9J±4
SRS Component And Wiring Location View
810RW298
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, C±21
(10) SRS Body Earth
(11) Body Harness Connector
(12) Instrument Harness Connector
(13) Engine Haness Connector
(14) Pretensioner, LH (If so equipped)
(15) Pretensioner, RH (If so equipped)
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 BRACKETFASTENERS 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 RIGIDLY
ATTACHED 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:

SUPPLEMENTAL RESTRAINT SYSTEM 9J±10
Accident With Deployment ± Component
Replacement And Inspections
Certain SRS components must be replaced or inspected
for damage after a frontal crash involving air bag
deployment. Those components are:

Air bag assembly

SDM
CAUTION: Refer to ªSDM Replacement Guidelinesº
below for important information on SDM
replacement in both deployment and non
deployment crashes.

SRS coil assembly Ð Inspect wiring and connector
for any signs of scorching, melting, or damage due to
excessive heat. Replace if damaged. Refer to
section ªSRS Coil Assemblyº in this manual.
Accident With or Without Deployment ±
Component Inspection
Certain SRS system components and rotation parts must
be inspected after any crash, whether the air bag
deployed or not. Those components are:

Steering column Ð Refer to Inspection Required
ªAfter an Accidentº in this manual.

Knee bolsters and mounting points Ð Inspect for any
distortion, bending, cracking, or other damage.

I/P steering column reinforcement plate Ð Inspect for
any distortion, bending, cracking, or other damage.

I/P braces Ð Inspect for any distortion, bending,
cracking, or other damage.

Seat belts and mounting points Ð Refer to ªSeat
Beltsº in Section ªSeat Beltº of this workshop manual.
SDM Replacement Guidelines
SDM replacement policy requires replacement of SDM,
after crash involving air bag deployment when ªSRS
Warning Lampº turn ªONº, ªSRS Diagnosisº should be
done according to Section ªRestraint Control System.º
If accident without deployment air bag, it is not necessary
replacement of SDM when do not indicate to replace the
SDM by scan tool after SRS system check.
Wiring Damage
If any SRS wire harness is damaged, it should be
replaced. Don't repair SRS harness. It is replace only.
SRS Connector (Plastic Body And
Terminal Metal Pin) Damage
If any connector or terminal in the SRS wire harness
(except pigtails) is damaged, it should be replaced.
SRS Wire Pigtail Damage
If the wiring pigtail (a wire or wires attached directly to the
device, not by a connector) is damaged, the entire
component (with pigtail) must be replaced. Examples of
ªpigtailº components are the driver air bag assembly, the
passenger air bag assembly, and the SRS coil assembly.
On±Vehicle Service
Service Precaution
WARNING: WHEN PERFORMING SERVICE ON OR
AROUND SRS COMPONENTS OR SRS WIRING,
FOLLOW THE PROCEDURES LISTED BELOW TO
TEMPORARILY DISABLE THE SRS. FAILURE TO
FOLLOW PROCEDURES COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY OR OTHERWISE UNNEEDED SRS REPAIRS.
The SDM in Driver±Passenger SRS can maintain
sufficient voltage to cause a deployment for up to 15
seconds after the ignition switch is turned ªOFF,º the
battery is disconnected, or the fuse powering the SDM is
removed.
Many of the service procedures require removal of the
ªC±21º fuse, and disconnection of the air bag assembly
from the deployment loop to avoid an accidental
deployment. If the air bag assembly is disconnected from
the deployment loop as noted in the ªDisabling the SRSº
procedure that follows, service can begin immediately
without waiting for the 15 second time period to expire.
Disabling The SRS
Removal
Turn the ignition switch to ªLOCKº and remove key.
1. Remove SRS fuse C±21, from left dash side lower
fuse block or disconnect battery.
2. Disconnect yellow 2±pin connector at the base of
steering column.
3. Remove glove box assembly, refer to ªPassenger Air
Bag Assembly Replacementº in this manual.
4. Disconnect yellow 2±pin connector behind the glove
box assembly.
CAUTION: W i t h t h e ª C±21º fuse removed and
ignition switch ªONº, the ªAIR BAGº warning lamp
will be ªONº. This is normal operation and does not
indicate an SRS malfunction.
Enabling The SRS
Installation
CAUTION: Never use the air bag assembly from
another vehicle. Use only the air bag assembly for
Trooper.
Turn ignition switch to ªLOCKº and remove key.
1. Connect yellow 2±pin connector passenger air bag
assembly.
2. Install glove box assembly. Refer to ªPassenger air
bag assembly replacementº in this manual.
3. Connect yellow 2±pin connector at the base of
steering column.
4. Install ªAIR BAGº fuse C±21 to left dash side lower
fuse block or connect battery.
Turn ignition switch to ªONº and verify that the ªAIR BAGº
warning lamp turn on 3.5 seconds and then turns ªOFF.º If
it does not operate as described, perform the ªSRS
Diagnostic System Checkº in this manual.

SUPPLEMENTAL RESTRAINT SYSTEM 9J±12
Deployed Air Bag Assembly (Driver Side)
ªYou 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.º
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: FA I L U R E T O F O L L O W P R O P E R
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 ªDeployment Outside Vehicleº and ªDeployment
Inside Vehicleº 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±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: W h e n t h e a i r b a g 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: D E P L O Y M E N T 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: S A F E T Y P R ECAUTIONS 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: W H E N S T O R I N G A L I V E A I R B A G
ASSEMBLY OR WHEN LEAVING A LIVE INFLATOR
MODULE UNATTENDED ON A BENCH OR OTHER

SUPPLEMENTAL RESTRAINT SYSTEM9J±15
S U R FA C E , A LWAY S FA C E T H E B A G A N D T R I M
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.
26. Temporarily store the driver air bag assembly with its
trim cover facing up, away from the surface upon
which it rests.
Deployment Outside Vehicle (Passenger
Air Bag Assembly)
WARNING: FAILURE TO FOLLOW PROPER SRS AIR
BAG ASSEMBLY DISPOSAL PROCEDURES CAN
RESULT IN AIR BAG DEPLOYMENT WHICH MAY
CAUSE PERSONAL INJURY. UNDEPLOYED AIR
BAG ASSEMBLIES 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 FEDERAL,
STATE AND/OR LOCAL LAWS.
Deployment out of the vehicle is proper when the vehicle
is to be returned to service. This includes, for example,
situations in which a functionally or cosmetically deficient
air bag assembly is replaced. Deployment and disposal
of an air bag assembly is, of course, subject to any
required retention period.
For deployment of a live air bag assembly out of the
vehicle, the deployment procedure must be followed
exactly. Always wear safety glasses during this
deployment procedure until the deployed air bag
assembly is scrapped. Before performing the
procedures, you should be familiar with servicing the SRS
system 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 the appropriate pigtail
adapter. The procedure also requires the use of
5±8840±2420±0 Passenger Side SRS Module
Deployment Fixture. Do not attempt this procedure
without 5±8840±2468±0 and adapter, and
5±8840±2420±0.
WARNING: FAILURE TO FOLLOW PROCEDURES IN
THE ORDER LISTED MAY RESULT IN PERSONAL
INJURY. NEVER CONNECT DEPLOYMENT
HARNESS TO ANY POWER SOURCE BEFORE
CONNECTING DEPLOYMENT HARNESS TO THE 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. WEARSAFETY GLASSES THROUGHOUT THIS ENTIRE
DEPLOYMENT AND DISPOSAL PROCEDURE.
NOTE: This information applies only to passenger air bag
assembly. Information for disposing of a live driver air bag
assembly can be found in ªDeployment Outside Vehicleº
(Driver Air Bag Assembly) in this section.
1. Turn ignition switch to ªLOCKº remove key, and put on
safety glasses.
2. Inspect 5±8840±2468±0 SRS Deployment Harness
and appropriate pigtail adapter for damage. If
harness or pigtail 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. The SRS Deployment Harness shall remain
shorted and not be connected to a power source until
the air bag is to be deployed.
827RS003
4. Connect the appropriate pigtail adapter to the SRS
Deployment Harness
827RS004