ISUZU AXIOM 2002 Service Repair Manual

SUPPLEMENTAL RESTRAINT SYSTEM9J±17
DEPLOYMENT WIRES SHOULD ALWAYS BE THE
FINAL STEP IN THE AIR BAG ASSEMBLY
DEPLOYMENT PROCEDURE. FAILURE TO FOLLOW
PROCEDURES IN THE ORDER LISTED COULD
RESULT IN PERSONAL INJURY.
23. Verify that the inside of the vehicle and the area
surrounding the vehicle are clear of all people and
loose or flammable objects.
24. Stretch the driver and passenger deployment
harness to their full length.
25. Completely cover windshield area and front door
window openings with a drop cloth, blanket or similar
item. This reduces the possibility of injury due to
possible fragmentation of the vehicle's glass or
interior.
26. Notify all people in the immediate area that you intend
to deploy the air bags. The deployment will be
accompanied by a substantial noise which may
startle the uninformed.
27. Separate the two ends of the driver deployment
harness wires.
WARNING: DEPLOYMENT WIRES SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A POWER
SOURCE UNTIL THE AIR BAG IS 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 WIRES TO THE POWER SOURCE
SHOULD ALWAYS BE THE FINAL STEP IN THE AIR
BAG ASSEMBLY DEPLOYMENT PROCEDURE.
FAILURE TO FOLLOW PROCEDURES IN THE
ORDER LISTED COULD RESULT IN PERSONAL
INJURY.
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
air bags.
28. Connect the driver deployment harness wires to a
power source to immediately deploy the driver air bag
assembly. Recommended application: 12 volts
minimum, 2 amps minimum. A vehicle battery is
suggested.
29. Separate the two ends of the passenger deployment
harness wires.
WARNING: DEPLOYMENT WIRES SHALL REMAIN
SHORTED AND NOT BE CONNECTED TO A POWER
SOURCE UNTIL THE AIR BAG IS 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 WIRES TO THE POWER SOURCE
SHOULD ALWAYS BE THE FINAL STEP IN THE AIR
BAG ASSEMBLY DEPLOYMENT PROCEDURE.
FAILURE TO FOLLOW PROCEDURES IN THE
ORDER LISTED COULD RESULT IN PERSONAL
INJURY.30. Connect the passenger deployment harness wires to
a power source to immediately deploy the passenger
air bag assembly. Recommended application: 12
volts minimum, 2 amps minimum. A vehicle battery is
suggested. Put on a pair of shop gloves and safety
gasses to protect your hands and eyes from possible
irritation and heat when handling the deployed air bag
assembly. After an air bag assembly has been
deployed, the surface of the air bag may contain a
powdery residue. This powder consists primarily of
cornstarch (used to lubricate the bag as it inflates)
and by products of the chemical reaction. Sodium
hydroxide dust (similar to lye soap) is produced as a
by product of the deployment reaction. The sodium
hydroxide then quickly reacts with atmospheric
moisture and is converted to sodium carbonate and
sodium bicarbonate (baking soda). Therefore, it is
unlikely that sodium hydroxide will be present after
deployment.
WARNING: S A F E T Y P R ECAUTIONS MUST BE
OBSERVED WHEN HANDLING A DEPLOYED AIR
BAG ASSEMBLY. AFTER DEPLOYMENT, THE
METAL SURFACES OF THE AIR BAG ASSEMBLY
WILL BE VERY HOT. ALLOW THE AIR BAG
ASSEMBLY TO COOL BEFORE HANDLING ANY
METAL PORTION OF IT. DO NOT PLACE THE HOT
DEPLOYED AIR BAG ASSEMBLY NEAR ANY
FLAMMABLE OBJECTS. FAILURE TO FOLLOW
PROCEDURES COULD RESULT IN FIRE OR
PERSONAL INJURY.
After an air bag assembly has been deployed, the
metal canister and surrounding areas of the air bag
assembly will be very hot. Do not touch the metal
areas of the air bag assembly for about 30 minutes
after deployment. If the deployed air bag assembly
must be moved before it is cool, wear gloves and
handle by the air bag or trim cover.
31. Short the driver deployment harness wires by twisting
together one end from each. Repeat this procedure
for the passenger deployment harness.
32. Carefully remove drop cloth from vehicle and clean off
any fragments or discard drop cloth entirely.
33. Disconnect driver deployment harness and
passenger deployment harness from vehicle and
discard.
34. In the unlikely event that either or both of the air bag
assemblies did not deploy after following these
procedures, proceed immediately with Steps 36
through 37. If the air bag assembly deployed, proceed
to step 35.
35. With both air bags deployed, the vehicle may be
scrapped in the same manner as a non±SRS
equipped vehicle.
NOTE: The remaining steps are to be followed in the
unlikely event that the air bag assembly did not deploy
after following these procedures.
36. Remove the undeployed air bag assembly (s) from
the vehicle. For driver air bag assembly refer to in the
ªPassenger Air Bag Assembly Removalº in this
section 9J±28.
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 AIR BAG

SUPPLEMENTAL RESTRAINT SYSTEM 9J±18
ASSEMBLY UNATTENDED ON A BENCH OR OTHER
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, 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 COULD
RESULT IN PERSONAL INJURY.
37. Temporarily store the air bag assembly with the air
bag opening facing up, away from the surface upon
which it rests.
Deployed Air Bag Assembly Handling
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 air bag assembly.After the air bag assembly has been deployed, the
surface of the air bag may contain a powdery residue.
This powder consists primarily of cornstarch (used to
lubricate the bag as it inflates) and by products of the
chemical reaction. Sodium hydroxide dust (similar to lye
soap) is produced as a by product of the deployment
reaction. The sodium hydroxide then quickly reacts with
atmospheric moisture and is converted to sodium
carbonate and sodium bicarbonate (baking soda).
Therefore, it is unlikely that sodium hydroxide will be
present after deployment.
Special Tools
WARNING: T O AV O I D D E P L O Y M E N T W H E N
TROUBLESHOOTING THE SRS, DO NOT USE
ELECTRICAL TEST EQUIPMENT SUCH AS A
BATTERY±POWERED OR AC±POWERED
VOLTMETER, OHMMETER, ETC., OR ANY TYPE OF
ELECTRICAL EQUIPMENT OTHER THAN THAT
SPECIFIED IN THIS MANUAL. DO NOT USE A NON
POWERED PROBE±TYPE TESTER. INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED
CAREFULLY, OTHERWISE PERSONAL INJURY MAY
RESULT.
J±41433 SRS Driver/Passenger Load Tool
The SRS Driver/Passenger Load Tool J±41433 is used
only when called for in this section. It is used as a
diagnostic aid and safety device to prevent inadvertent air
bag assembly deployment.
The load tool has four yellow connectors attached to its
case.
The three small connectors are electrically functional and
serve as resistive load substitutions.
No more than two connectors are used at any time. One
of the small connectors is used to substitute for the load of
the driver air bag assembly when it is connected at the top
of the column to the SRS coil assembly. Another small
connector is used to substitute for the load of the driver air
bag assembly and the SRS coil assembly when it is
connected at the base of the column to the SRS wiring
harness. The third small connector is used to substitute
for the load of the passenger air bag assembly when
connected to the passenger air bag assembly harness
connector.
By substituting the resistance of the load tool when called
for, a determination can be made as to whether an inflator
circuit component is causing system malfunction and
which component is causing the malfunction. The load
tool should be used only when specifically called for in the
diagnostic procedures.
901RS146

SUPPLEMENTAL RESTRAINT SYSTEM9J±19
J±39200 DVM
The J±39200 DVM is the preferred DVM for use in SRS
diagnosis and repair. However, J±34029±A may be used
if J±39200 is not available. No other DVMs are approved
for SRS diagnosis and repair.
901RS153
Scan Tool
The Tech 2 is used to read and clear SRS Diagnostic
Trouble Codes (DTCs). Refer to the Tech 2 Operator's
Manual for specific information on how to use the Tech 2.
901RW176
J±35616±A Connector Test Adapter Kit
The J±35616±A Connector Test Adapter Kit must be used
whenever a diagnostic procedure requests checking or
probing a terminal. Using the appropriate adapter will
ensure that no damage to the terminal will occur from the
DVM prove, such as spreading or bending. The adapter
will also give an idea of whether contact tension is
sufficient, helping to find an open or intermittent open due
to poor terminal contact.
901RS151
J±42986 SRS Deployment Tool
The J±42986 SRS Deployment Tool must be used for
deployment of the undeployed air bag.
901RW106

SUPPLEMENTAL RESTRAINT SYSTEM 9J±20
J±42987 SRS Adapter For Load Tool
The J±42987 SRS Adapter be used for connect previous
load tool to new SRS system when inspect SRS system
harness.
901RW107
J±41497 SRS Deployment Fixture
The J±41497 SRS Deployment Fixture must be used for
deployment of the undeployed passenger side air bag.
901RW088

SUPPLEMENTAL RESTRAINT SYSTEM9J±21
Tech 2 Scan Tool
From 2002 AXIOM (UP), dealer service departments are
recommended to use Tech 2. Please refer to Tech 2 scan
tool user guide.
901RW180
Legend
(1) PCMCIA Card
(2) RS 232 Loop Back Connector(3) SAE 16/19 Adaptor
(4) DLC Cable
(5) Tech±2

SUPPLEMENTAL RESTRAINT SYSTEM 9J±22
Getting Started

Before operating the Isuzu PCMCIA card with the
Tech 2, the following steps must be performed:
1. The Isuzu System PCMCIA card (1) inserts into the
Tech 2 (5).
2. Connect the SAE 16/19 adapter (3) to the DLC cable
(4).
3. Connect the DLC cable to the Tech 2 (5)
4. Make sure the vehicle ignition is off.
5. Connect the Tech 2 SAE 16/19 adapter to the vehicle
DLC.
060R200039
6. The vehicle ignition turns on.
7. Verify the Tech 2 power up display.
060RW009
NOTE: The RS232 loop back connector is only to use for
diagnosis of Tech 2 and refer to user guide of the Tech 2.Operating Procedure
The power up screen is displayed when you power up the
tester with the Isuzu systems PCMCIA card. Follow the
operating procedure below.
060R100102

SUPPLEMENTAL RESTRAINT SYSTEM9J±23
060R200037

SUPPLEMENTAL RESTRAINT SYSTEM 9J±24
Menu

The following table shows which functions are used
for the available equipment versions.
060RY00113
DTC Modes
060RY00114

Read DTC info by Priority

Clear Info
060RY00115
Plottong Snapshot Graph
This test selects several necessary items from the data
list to plot graphs and makes data comparison on a long
term basis. It is an effective test particularly in emission
related evaluations.
For trouble diagnosis, you can collect graphic data (snap
shot) directly from the vehicle.
You can replay the snapshot data as needed. Therefore,
accurate diagnosis is possible, even though the vehicle is
not available.

SUPPLEMENTAL RESTRAINT SYSTEM9J±25
Plotting Graph Flow Chart (Plotting graph after obtaining vehicle information)
060RX041

SUPPLEMENTAL RESTRAINT SYSTEM 9J±26
Flow Chart for Snapshot Replay (Plotting Graph)
060RX040