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Isuzu Trooper (2000 year). Manual - part 55

2A–50

POWER ASSISTED SYSTEM

Combination Switch

Combination Switch and Associated Parts

431RW001

Legend

(1) Steering Column Cover
(2) Steering Wheel
(3) Inflator Module

(4) Combination Switch and SRS Coil Assembly
(5) Front Console Assembly
(6) Steering Lower Cover
(7) Lower Cluster Assembly

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.

CAUTION: The wheels of the vehicle must be
straight ahead and the steering column in the
“LOCK” position before disconnecting the steering
wheel. Failure to do so will cause the coil assembly
to become uncentered which will cause damage to
the coil assembly.

5. Remove the transmission (for M/T) and transfer

control lever knob. Disconnect the wiring harness
connectors then remove front console assembly.

6. Remove lower cluster assembly.
7. Remove the engine hood opening lever, then remove

steering lower cover.

POWER ASSISTED SYSTEM

2A–51

8. 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. Disconnect the yellow 2-way
SRS connector located behind the inflator module,
then remove inflator module.

827RT008

827RW002

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

827RS016

9. Apply a setting mark (1) across the steering wheel

and shaft so parts can be reassembled in their original
position. Move the front wheels to the straight ahead
posision, then use steering wheel remover J–29752
to remove the steering wheel.

430RW001

CAUTION: Never apply force to the steering wheel
in direction of the shaft by using a hammer or other
impact tools in an attempt to remove the steering
wheel. The steering shaft is designed as an energy
absorbing unit.

2A–52

POWER ASSISTED SYSTEM

430RT009

10. Remove steering column cover.

11. Disconnect the wiring harness connectors located

under the steering column, then remove combination
switch and SRS coil assembly.

NOTE: The SRS coil is a part of the combination switch
assembly, which can not be replaced separately.
Therefore, be sure not to remove the SRS coil from the
combination switch assembly.

825RW030

Installation

1. Install combination switch and SRS coil assembly.

After installation of combination switch assembly,
connect the combination switch wiring harness
connector and the SRS 2-way connector located
under the steering column. Then turn the SRS coil
counterclockwise to full, return about 3 turns and align
the neutral mark.

CAUTION: When turning the SRS coil
counterclockwise to full, stop turning if resistance is
felt. Forced further turning may damage to the cable
in the SRS coil.

826RW014

2. When installing the steering column cover, be sure to

route each wire harness as illustrated so that the
harnesses do not catch on any moving parts.

825RW017

Legend

(1) Steering Column Cover
(2) Starter Switch Harness
(3) Combination Switch Harness
(4) Inflator Module Harness

3. Align the setting marks made when removing then

install steering wheel.

POWER ASSISTED SYSTEM

2A–53

4. Tighten the steering wheel fixing nut to the specified

torque.

Torque: 34 N·m (25 lb ft)

5. Support the inflator module and carefully connect the

module connector.

CAUTION:

Never use the air bag assembly from another
vehicle. Use only the air bag assembly for “UX”.

The driver’s air bag assembly (Inflator module)
for 1999 model has different characteristic to the
parts for 1998 model.
When replace the driver’s air bag assembly,
confirm the parts number and use only the parts
for 1999 model. (The driver’s air bag assembly for
1999 model has “yellow” bar codes label. 1998
model has “white” bar codes label.)

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

6. Secure the module with one bolt to relieve weight on

the wire connector.

7. Tighten bolts to specified sequence as illustrated.

Torque: 8 N·m (69 lb in)

827RW003

8. Install steering lower cover then Install the engine

hood opening lever.

9. Install lower cluster assembly

10. Install the transmission (for M/T) and transfer control

lever knob, then install front console assembly.

11. Connect the wiring harness connectors.

12. Connect the battery “–” terminal cable.
13. Turn the ignition switch to “ON” while watching

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

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