ISUZU TROOPER 1998 Service Repair Manual

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 69
STEERING COLUMN REPLACEMENT
35
0
4FD
'
¿‰à
ü
¼Êy¢x
?
÷» Äç âÇ¿Ä» Ó
MbŽ
¼
j
µ#>}

X
}
c
j
jø~å
j )
( åµÄà
ü
¿‰
jø 1VC/P
80:5
12
1098
7
5
6
11
2
13
4
3
1
Removal Steps
1. Front console assembly
2. Lower cluster assembly
3. Steering lower cover
4. Driver knee bolster (rein-
forcement)
5. Inflator module
6. Steering wheel
7. Steering column cover
8. Combination switch and
SRS coil assembly
9. Snap ring
10. Cushion rubber
11. Shift lock cable (for A/T)
12. Lock cylinder assembly
13. Steering column assembly
Installation Steps
13. Steering column assembly
12. Lock cylinder assembly
11. Shift lock cable (for A/T)
10. Cushion rubber
9. Snap ring
8. Combination switch and
SRS coil assembly
7. Steering column cover
6. Steering wheel
5. Inflator module
4. Driver knee bolster (reinforcement)
3. Steering lower cover
2. Lower cluster assembly
1. Front console assembly
431RT002
These steps are based on the LHD model.
12
8
7
6
5
13
11
10
9
4
2
1

2A – 70 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
REMOVAL
Preparation:
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 ground cable, and wait at least
5 minutes.
4) Disconnect the yellow 2way 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 SRS coil assembly to
become uncentered which will cause damage to the SRS
coil assembly.
1. Front Console Assembly
Disconnect the transmission (for M/T) and transfer
control lever knob.
Disconnect the wiring harness connectors.
2. Lower Cluster Assembly
3. Steering Lower Cover
Remove the engine hood opening lever.
4. Driver Knee Bolster (Reinforcement)
5. Inflator Module
1) 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.
2) Disconnect the yellow 2way SRS connector
located behind the inflator module.
827RS014
827RS015

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 71
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 A
ACCIDENTAL DEPLOYMENT. OTHERWISE, PERSONAL
INJURY MAY RESULT.
6. Steering Wheel
Apply a setting mark across the steering wheel and
shaft so parts can be reassembled in their original
position.
Use special tool. Remove the steering wheel.
Move the tires to the straight ahead position before
removing the steering wheel.
Steering wheel remover: 5-8840-0016-0 (J-29752)
7. Steering Column Cover
8. Combination Switch and SRS Coil Assembly
1) Disconnect the wiring harness connectors
located under the steering column.
2) Remove the combination switch assembly with
SRS coil.
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.
9. Snap Ring
10. Cushion Rubber
11. Shift Lock Cable (for A/T)
12. Lock Cylinder Assembly
Disconnect the starter switch harness connector
located under the steering column.
827RS016
825RS046
Up
430RS004
Setting mark

2A – 72 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
Setting mark
13. Steering Column Assembly
Apply a setting mark across the universal joint and
steering shaft to reassemble the parts in their original
position.
NOTE:
A setting mark can be easily made if the shaft is
withdrawn a little by loosening the steering shaft
universal joint.
431RV003
INSTALLATION
13. Steering Column Assembly
Align the setting marks on the universal joint and
steering shaft made during removal.
Tighten the steering column fixing bolt (dash panel)
to the specified torque.
Steering Column Bolt Torque N·m (kg·m/lb·ft)
19 (1.9 / 14)
Tighten the steering column fixing bolt (pedal
bracket) to the specified torque.
Steering Column Bolt Torque N·m (kg·m/lb·ft)
17 (1.7 / 13)
Tighten the universal joint to the specified torque.
Universal Joint Torque N·m (kg·m/lb·ft)
25 (2.5 / 18)
12. Lock Cylinder Assembly
11. Shift Lock Cable (for A/T)
10. Cushion Rubber
9. Snap Ring
8. Combination Switch
1) After installation of combination switch
assembly, connect the combination switch
wiring harness connector and the SRS 2way
connector located under the steering column.
2) 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.
Alignment mark
826RW027

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A Ð 73
Starter switch
harness
Combination
switch harness
Inflator module
harness
Setting cowl
(Lower)
7. Steering Column Cover
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.
6. Steering Wheel
Align the setting marks made when removing.
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
if designed as an energy absorbing unit.
Tighten the steering wheel fixing nut to the specified
torque.
Steering Wheel Nut Torque Nám (kgám/lbáft)
34 (3.5 / 25)
5. Inflator Module
1) Support the module and carefully connect the
module connector.
CAUTION:
·Never use the air bag assembly from another vehicle.
Use only the air bag assembly for "UBS".
·When replace the inflator module, use only same parts
number assembly. If different parts number assembly is
installed, the air bag system can not function correctly
because it has different characteristic.
NOTE:
Pass the lead wire through the tabs on the plastic
cover (wire protector) of inflator to prevent lead wire
from being pinched.
2) Secure the module with one bolt to relieve
weight on the connector wire.
3) Tighten bolts to specified sequence as figure.
Inflator Module Bolt Torque Nám (kgám/lbáin)
8 (0.8 / 69)
4 Driver Knee Bolster (Reinforcement)
3. Steering Lower Cover
Install the engine hood opening lever.
2. Lower Cluster Assembly
1. Front Console Assembly
Connect the wiring harness connectors.
Install the transmission (for M/T) and transfer control
lever knob.
Connect the yellow 2way SRS connector located
under the steering column.
Connect the battery ground cable.
825RS048
3
41
2
827RS017

2A – 74 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
SYSTEM INSPECTION
Turn the ignition to "ON" while watching warning
light.
Light should flash 7 times and then go off. If lamp
does not operate correctly, refer to Section 9J.

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 75
SECTION 2A
STEERING COLUMN
CONTENTS
PAGE
General Description ......................................................................................................... 2A – 76
On-Vehicle Service ........................................................................................................... 2A – 77
Steering Wheel Replacement ..................................................................................... 2A – 77
Combination Switch Replacement ............................................................................ 2A – 79
Lock Cylinder Replacement ........................................................................................ 2A – 81
Steering Column Replacement .................................................................................. 2A – 84

2A – 76 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
GENERAL DESCRIPTION
The steering column has three important features in
addition to the steering function:
1. The column is energy absorbing, designed to
compress in a front-end collision to minimize
the possibility of injury to the driver of the
vehicle.
2. The ignition switch and lock are mounted
conveniently on the column.
3. With the column mounted lock, the ignition
and steering operation can be locked to
prevent theft of the vehicle.The column may be disassembled and
reassembled. To insure the energy absorbing
action, it is important that the specified screws,
bolts and nuts be used only as designated and that
they are tightened to the specified torque.
When the column is removed from the vehicle, a
sharp blow on the end of steering shaft leaning on
the column assembly, or dropping the assembly
could shear or loosen the fasteners that maintain
column rigidity.

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 77
ON-VEHICLE SERVICE
STEERING WHEEL REPLACEMENT
Removal Steps
1. Center pad
2. Nut
3. Steering wheel
Installation Steps
3. Steering wheel
2. Nut
1. Center pad
These steps are based on the LHD model.
REMOVAL
1. Center Pad
1) Remove the center pad attaching screw from the
steering wheel under side.
2) Disconnect the harness.
3) Remove the center pad from the center of the
steering wheel.
2. Nut

2A – 78 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
INSTALLATION
3. Steering Wheel
Align the setting marks made when removing.
CAUTION:
Never apply force to the setting wheel in direction of the
shaft by using a hammer or other impact tools in an
attempt to install the steering wheel. The steering shaft is
designed as an energy absorbing unit.
2. Nut
Steering Wheel Nut Torque N·m (kg·m/lb·ft)
34 (3.5 / 25)
1. Center pad
Fit four projections of pad in holes on the steering
wheel side.
Tighten the screws on the lower side of the pad.
Center Pad Nut Torque N·m (kg·m/lb·in)
2.5 (0.25 / 21.7) 3. Steering Wheel
1) Apply a setting mark across the steering wheel
and shaft so parts can be reassembled in their
original position.
2) Use special tool.
Steering wheel remover:5-8840-0016-0(J-29752)
NOTE:
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.