power steering ISUZU TF SERIES 2004 Owners Manual

POWER-ASSISTED STEERING SYSTEM 3B-37

Steering Wheel
Steering Wheel and Associated Parts
430R300013
Legend
(1) Horn Lead
(2) SRS Connector
(3) Steering Wheel
(4) Steering Wheel Fixing Nut
(5) Inflator Module or Horn Pad



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 a
t
least 5 minutes. (with SRS air bag)
4.
Disconnect the yellow 2-way SRS connector located
under the steering column. (with SRS air bag)
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. (with SRS air bag)
5. Disable the SRS (Refer to "Disabling the SRS" in
this section). (with SRS air bag)

3B-38 POWER-ASSISTED STEERING SYSTEM

6. Check the both side hole of the steering cover. (with
SRS air bag)
060R300025
7. Check the position of the pins in a hole. Push the
pin in the direction of an arrow. (with SRS air bag)
060R300032

8. Push the four pins at 
5
6 mm bar. (with SRS ai
r
bag)
060R300031
9. Cancel the lock four pins. (with SRS air bag)
10. Loosen the horn pad fixing screw at the rear of the
steering wheel (without SRS air bag).
430R300009

POWER-ASSISTED STEERING SYSTEM 3B-39

11. Disconnect the SRS air bag connector and horn
lead connector located behind the air bag assembl
y
and remove the air bag assembly. (with SRS air
bag)
060R300041
12. Remove the horn pad and the horn leads at the
center of the wheel (without SRS air bag).
NOTE: It removes previously from the spoke bottom.



RTW33BSH000401
WARNING: THE INFLATOR MODULE SHOULD
ALWAYS BE CARRIED WITH THE COVER AWAY
FROM YOUR BODY AND SHOULD ALWAYS BE
LAID ON A FLAT SURFACE WITH THE COVER 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. (with SRS ai
r
bag)


430R300007
13. Apply a setting mark (1) across the steering wheel
and shaft so parts can be reassembled in thei
r
original position. Move the front wheels to the
straight ahead position, then use steering wheel
remover 5-8521-0016-0 to remove the steering
wheel.
430R300008
CAUTION: Never apply force to the steering wheel in
direction of the shaft by using a hammer or othe
r
impact tools in an attempt to remove the steering
wheel. The steering shaft is designed as an energy
absorbing unit.

3B-40 POWER-ASSISTED STEERING SYSTEM



430RX005-X
14. Remove steering column cover.
15. Disconnect the wiring harness connectors located
under the steering column then remove combination
switch and SRS coil assembly.

Installation
1. Align the setting marks made when removing then
install steering wheel.
Refer to the adjustment method in case a mark is
not attached in this section.
NOTE: Confirm SRS and Horn harness connector is
fixed by the steering wheel.
RTW33BSH000601

CAUTION: Never apply force to the steering wheel in
direction of the shaft by using a hammer or othe
r
impact tools in an attempt to remove the steering
wheel. The steering shaft is designed as an energy
absorbing unit.
2. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 31 - 39 N





m (3.2 – 4.0 kg





m/23 - 29 lb ft)
3. Support the inflator module and carefully connect the
SRS connector and horn lead. (with SRS air bag)
060R300041
4. Connect the horn leads at center of wheel. (without
SRS air bag)
NOTE: Horn leads is letting a bracket top pass.
(Plastic type steering wheel only)



RTW43BSH000301

POWER-ASSISTED STEERING SYSTEM 3B-41

5. Push the born pad area 1-4.
Tighten the born pad fixing screw to the specifed
torque (without SRS air bag)
Torque: 2 - 4 N




m (0.2 – 0.4 kg




m/17 - 35 lb ft)
NOTE: A horn pad is not struck at the time o
f
attachment.



RTW43BSH000401
6. Align the each snap stud of driver air bag to the hole
of steering wheel. (with SRS air bag)
060R300030


060R300020
7. Push the SRS air bag area1 and area2. At that time
confirm the audible noise of each stud. (with SRS ai
r
bag)
060R300036
8. Enable the SRS (Refer to "Enabling the SRS" in this
section). (with SRS air bag)
9. Connect the SRS connector. (with SRS air bag)
10. Connect the battery "-" terminal cable. (with SRS ai
r
bag)
11. 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.

3B-42 POWER-ASSISTED STEERING SYSTEM

The adjustment method in case a mark is not attached
with SRS air bag
430R300011

without SRS air bag
430R300010

POWER-ASSISTED STEERING SYSTEM 3B-43

Combination Switch
Combination Switch and Associated Parts


This illustration is based on the RHD model.
RTW43BLF000601
Legend
(1) Steering Column Cover
(2) Steering Wheel
(3) Inflator Module or Horn Pad
(4) Combination Switch and SRS Coil Assembly
(5) Instrument Panel Lower Cover
(6) 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 a
t
least 5 minutes. (with SRS air bag)
4.
Disconnect the yellow 2-way SRS connector located
under the steering column. (with SRS air bag)
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. (with SRS air bag)
5. Remove the engine hood opening lever, then
remove instrument panel lower cover.
6. Remove the driver knee bolster (reinforcement).

3B-44 POWER-ASSISTED STEERING SYSTEM

7. Disable the SRS (Refer to "Disabling the SRS" in
this section). (with SRS air bag)
8. Check the both side hole of the steering cover.
060R300025
9. Check the position of the pins in a hole. Push the
pin in the direction of an arrow. (with SRS air bag)
060R300032

10. Push the four pins at 
5
6 mm bar. (with SRS air
bag)
060R300031
11. Cancel the lock four pins. (with SRS air bag)
12. Loosen the horn pad fixing screw at the rear of the
steering wheel (without SRS air bag).
430R300009

POWER-ASSISTED STEERING SYSTEM 3B-45

13. Disconnect the SRS air bag connector and horn
lead connector located behind the air bag assembl
y
and remove the air bag assembly. (with SRS air
bag)
060R300041
14. Remove the horn pad and the horn leads at the
center of the wheel (without SRS air bag).
NOTE: It removes previously from the spoke bottom.



RTW43BSH00201

WARNING: THE INFLATOR MODULE SHOULD
ALWAYS BE CARRIED WITH THE COVER AWAY
FROM YOUR BODY AND SHOULD ALWAYS BE
LAID ON A FLAT SURFACE WITH THE COVER 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. (with SRS ai
r
bag)


430R300007
15. Apply a setting mark (1) across the steering wheel
and shaft so parts can be reassembled in thei
r
original position. Move the front wheels to the
straight ahead position, then use steering wheel
remover 5-8521-0016-0 to remove the steering
wheel.
430R300008
CAUTION: Never apply force to the steering wheel in
direction of the shaft by using a hammer or othe
r
impact tools in an attempt to remove the steering
wheel. The steering shaft is designed as an energy
absorbing unit.

3B-46 POWER-ASSISTED STEERING SYSTEM


CAUTION:
When turning the SRS coil
counterclockwise to full, stop turning if resistance
is felt. Forced further turning may damage the cable
in the SRS coil.
(with SRS air bag)
826RW014
Legend
(1) Neutral mark





430RX005-X
16. Remove steering column cover.
17. Disconnect the wiring harness connectors located
under the steering column then remove combination
switch and SRS coil assembly. (with SRS air bag)
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. (with SRS air bag)
430R300014

Installation
1. Install the combination switch assembly with SRS
coil. (with SRS air bag)
2. Turn the SRS coil counterclockwise to full, return
about 3 turns and align the neutral mark. (with SRS
air bag)


3. Connect the wiring harness connectors located at
the base of steering column.
4. Install the air conditioning lower duct.
5. Install the steering column cover.
CAUTION:
When installing the steering column
cover, be sure to wire (through each harness) as
illustrated so that the harness starter switch,
combination switch and SRS coil may not catch
wiring.
(with SRS air bag)
825RS048