switch ISUZU TF SERIES 2004 Workshop Manual

POWER-ASSISTED STEERING SYSTEM 3B-33

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)
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 air
bag)
060R300031
9. Cancel the lock four pins. (with SRS air bag)

3B-36 POWER-ASSISTED STEERING SYSTEM

3. Align the each snap stud of driver air bag to the hole
of steering wheel. (with SRS air bag)
060R300030
060R300020

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

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-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.

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-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

3B-48 POWER-ASSISTED STEERING SYSTEM

13. Align the each snap stud of driver air bag to the hole
of steering wheel. (with SRS air bag)
060R300030
060R300020

14. Push the SRS air bag area1 and area2. At that time
confirm the audible noise of each stud. (with SRS ai
r
bag)
060R300036

15. Enable the SRS (Refer to "Enabling the SRS" in this
section). (with SRS air bag)
16. Install driver knee bolster (reinforcement).
17. Install instrument panel lower cover then Install the
engine hood opening lever.
18. Connect the SRS connector. (with SRS air bag)
19. Connect the battery "-" terminal cable. (with SRS ai
r
bag)
20. 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.

POWER-ASSISTED STEERING SYSTEM 3B-49

Lock Cylinder
Lock Cylinder and Associated Parts

This illustration is based on the RHD model.
RTW43BLF000701
Legend
(1) Steering Column Cover
(2) Steering Wheel
(3) Inflator Module or Horn pad
(4) Combination Switch and SRS Coil Assembly
(5) Steering Column Assembly
(6) Lock Cylinder Assembly
(7) Instrument Panel Lower Cover
(8) 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)

3B-52 POWER-ASSISTED STEERING SYSTEM

430R300007
17. Remove steering column cover.
18. Disconnect the wiring harness connectors located
under the steering column.
19. 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. (with SRS air bag)
430R300014
20. Turn the ignition switch to the ACC position.

21. Insert a pin (1) into the hole and push on it. Pull the
key cylinder free.
P1010003

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