Isuzu Trooper (2000 year). Service manual - part 57

2A–58

POWER ASSISTED SYSTEM

Steering Column

Steering Column and Associated Parts

431RW002

Legend

(1) Inflator Module
(2) Steering Wheel
(3) Steering Column Cover
(4) Combination Switch and SRS Coil Assembly
(5) Snap Ring
(6) Cushion Rubber

(7) Lock Cylinder Assembly
(8) Shift Lock Cable (For A/T)
(9) Steering Column Assembly

(10) Front Console Assembly

(11) Lower Cluster Assembly

(12) Steering Lower Cover
(13) Driver Knee Bolster (reinforcement)

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.

POWER ASSISTED SYSTEM

2A–59

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

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

control lever knob.

6. Disconnect the wiring harness connectors.
7. Remove front console assembly.
8. Remove lower cluster assembly.
9. Remove the engine hood opening lever, then remove

steering lower cover.

10. Remove driver knee bolster (reinforcement).

11. 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.

827RT008

12. Disconnect the yellow 2-way SRS connector located

behind the inflator module.

13. Remove inflator module. 

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

14. 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
position, then use steering wheel remover J–29752 to
remove the steering wheel.

430RW001

2A–60

POWER ASSISTED SYSTEM

430RT009

15. Remove steering column cover.
16. Disconnect the wiring harness connectors located

under the steering column.

17. Remove the combination switch assembly with SRS

coil.

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

825RW030

18. Remove snap ring.
19. Remove cushion rubber.
20. Remove shift lock cable (For A/T).
21. Disconnect the starter switch harness connector

located under the steering column, then remove lock
cylinder assembly.

22. Apply a setting mark (1) across the universal joint and

steering shaft to reassemble the parts in their original
position, then remove steering column assembly.

NOTE: A setting mark can be easily made if the shaft is
withdrawn a little by loosening the steering shaft universal
joint.

431RW004

Inspection

If the abnormal conditions are found through inspection,
replace the steering column assembly.

Column Capsule

Check capsules on steering column bracket assembly; all
must be securely seated in bracket slots and checked for
any loose conditions when pushed or pulled by hand.

431RW030

POWER ASSISTED SYSTEM

2A–61

Check clearance between capsule and bracket. It must
be within 1 mm (0.039 in).

431RW031

Column Tube

Check for collapse by measuring the distance as shown in
the figure.

Standard distance: 162.2–165.8 mm (6.386–6.528
in)

431RW032

Column Universal Joint for Tilt Mechanism

If the resistance is felt when checked by rotate the joint,
replace the steering column assembly.

Sheared Injected Plastic Pin

Check the sheared injected plastic pins for any loose
conditions or damage.

431RW033

Shaft Length

Check the shaft length from the upper end of the slide joint
to the end of the shaft. If column length is not in
specifications, steering column should be replaced.

Standard length: 308–310 mm (12.126–12.205 in)

431RX003

Shaft Universal Joint (Lower End)

If the resistance is felt when checked by rotate the joint,
replace the steering column assembly.

Shaft Bellows Pipe

Check the shaft bellows pipe for bend by using straight
edge. Measure the clearance between the bellows pipe
and the straight edge (at center of the bellows pipe).

Standard: Less than 1 mm (0.039 in)