Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 1720

POWER-ASSISTED STEERING SYSTEM

2A–29

Supplemental Restraint System Steering Wheel & Column

Service Precaution

This steering wheel and column repair section covers
the Supplemental Restraint System (SRS) steering
column. The following repair procedures are specific to
SRS components. When servicing a vehicle equipped
with Supplemental Restraint System, pay close
attention to all WARNINGS and CAUTIONS.
For detailed explanation about SRS, refer to Restraints
section.

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.
SAFE HANDLING OF INFLATOR MODULES
REQUIRES FOLLOWING THE PROCEDURES
DESCRIBED BELOW FOR BOTH LIVE AND
DEPLOYED MODULES.
SAFETY PRECAUTIONS MUST BE FOLLOWED
WHEN HANDLING A DEPLOYED AIR BAG
ASSEMBLY (AIR BAG). AFTER DEPLOYMENT, THE
AIR BAG ASSEMBLY (AIR BAG) SURFACE MAY
CONTAIN A SMALL AMOUNT OF SODIUM
HYDROXIDE, A BY-PRODUCT OF THE
DEPLOYMENT REACTION, THAT IS IRRITATING TO
THE SKIN AND EYES. MOST OF THE POWDER ON
THE AIR BAG ASSEMBLY (AIR BAG) IS HARMLESS.
AS A PRECAUTION, WEAR GLOVES AND SAFETY
GLASSES WHEN HANDLING A DEPLOYED AIR
BAG ASSEMBLY, AND WASH YOUR HANDS WITH
MILD SOAP AND WATER AFTERWARDS.

WHEN CARRYING A LIVE AIR BAG ASSEMBLY,
MAKE SURE THE BA G AND TRIM COVER ARE
POINTED AWAY FROM YOU. NEVER CARRY AN AIR
BAG ASSEMBLY BY THE WIRES OR CONNECTOR
ON THE UNDERSIDE OF MODULE. IN THE CASE OF
AN ACCIDENTAL DEPLOYMENT, THE BAG WILL
THEN DEPLOY WITH MINIMAL CHANCE OF INJURY.
WHEN PLACING A LIVE AIR BAG ASSEMBLY ON A
BENCH OR OTHER SURFACE, ALWAYS FACE THE
BAG AND TRIM COVER UP, AWAY FROM THE
SURFACE.
NEVER REST A STEERING COLUMN ASSEMBLY
ON THE STEERING WHEEL WITH THE AIR BAG
ASSEMBLY FACE DOWN AND COLUMN VERTICAL.
THIS IS NECESSARY SO THAT A FREE SPACE IS
PROVIDED TO ALLOW THE AIR BAG ASSEMBLY
TO EXPAND IN THE UNLIKELY EVENT OF
ACCIDENTAL DEPLOYMENT. OTHERWISE,
PERSONAL INJURY COULD RESULT.
TO AVOID DEPLOYMENT WHEN
TROUBLESHOOTING THE SRS SYSTEM, DO NOT
USE ELECTRICAL TEST EQUIPMENT, SUCH AS
BATTERY-POWERED OR A/C-POWERED
VOLT-METER, OHMMETER, ETC., OR ANY TYPE OF
ELECTRICAL EQUIPMENT OTHER THA N
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.

SRS Connectors

CAUTION: The special yellow color connectors are
used for supplemental restraint system-air bag
circuit.
When removing the cable harness disconnect the
connector by unlocking at two places, outside (1)
and inside (2). Do not pull the wires or
disconnection may occur.
When connecting the double lock type SRS
connector, insert the connector completely then
lock the connector. Imperfect locking may cause the
SRS circuit to malfunction.

2A–30

POWER-ASSISTED STEERING SYSTEM

Removal

To remove the connector, hold the cover insulator(1)
and pull it. The cover insulator slides and lock will be
released.
Do not hold the socket insulator(2).

827RW028

Installation

To install the connector, hold the soket insulator(1) and
insert it. The cover insulator slides and connector will be
locked.
Do not hold the cover insulator(2).

827RW027

POWER-ASSISTED STEERING SYSTEM

2A–31

Inflator Module

Inflator Module and Associated Parts

827RW071

E nd O FCallo ut

Removal

1. Turn the steering wheel so that the vehicle's wheels

are pointing straight ahead.

2. Turn the ignition switch to “LOCK".

3. Disconnect the battery “–" terminal cable, and wait

at least 5 minutes.

4. Disconnect the yellow 2-way SRS connector located

under the steering column.

5. Loosen the inflator module fixing bolt from behind

the steering wheel assembly using a TORX® driver
or equivalent until the inflator module can be
released from steering assembly .

827RW070

Legend

(1)

Horn Lead

(2)

SRS Connector

(3)

Fixing Bolt

(4)

Inflator Module

2A–32

POWER-ASSISTED STEERING SYSTEM

6. Disconnect the yellow 2-way SRS connector and

horn lead located behind the inflator module.

827RW073

7. Remove inflator module.

Inspection and Repair

WARNING: THE INFLATOR MODULE SHOULD
ALWAYS BE CARRIED WITH THE TRIM COVER
AWAY FROM YOUR BODY AND SHOULD ALWAYS
BE LAID ON A FLAT SURFACE WITH THE
URETHANE SIDE UP. THIS IS NECESSARY
BECAUSE FREE SPACE IS PROVIDED TO ALLOW
THE AIR CUSHION TO EXPAND IN THE UNLIKELY
EVENT OF ACCIDENTAL DEPLOYMENT.
OTHERWISE, PERSONAL INJURY MAY RESULT .

827RW072

The inflator module consists of a cover, air bag, inflator,
and retainer. Inspect the inflator module mainly for the
following:

• Check for holes, cracks, severe blemishes and

deformation on the cover.

• Check that the retainer is not deformed.

• Check for defects such as damage and breakage in

the lead wire for the igniter.

Replace the inflator module if a defect is found during
inspection.

Installation

1. Install inflator module.

2. Support the module and carefully connect the

module connector and horn lead.

NOTE: Pass the lead wire through the tabs on the
plastic cover (wire protector) of inflator to prevent lead
wire from being pinched.

3. Tighten bolts to specified torque.

Torque: 9N·m (78lb in)

4. Connect the yellow 2-way SRS connector located

under the steering column.

5. Connect the battery “–" terminal cable.

6. Set ignition to “ON" while watching warning light.

Light should flash 7 times and then go off. If lamp
does not operate correctly, refer to Restraints
section.