steering ISUZU TF SERIES 2004 Workshop Manual

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-50 POWER-ASSISTED STEERING SYSTEM

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 and
steering lower cover.
6. Remove driver knee bolster (reinforcement).
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. (with
SRS air bag)
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 ai
r
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-51

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

15.
Apply a setting mark (1) across the steering wheel
and shaft so parts can be reassembled in thei
r
original position.

430R300008
16. Move the front wheels to the straight ahead position,
then use steering wheel remover 5-8521-0016-0 to
remove the steering wheel.
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.



430RX005-X
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)

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

POWER-ASSISTED STEERING SYSTEM 3B-53

825RS048
4. Install the driver knee bolster assembly.
5. Install the steering lower cover and engine hood
opening lever.
6. Install the steering wheel and align the setting marks.
Refer to the adjustment method in case a mark is no
t
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.
7. 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)

8. Support inflator module and carefully connect the
SRS connector and horn lead, then install inflato
r
module. (with SRS air bag)
060R300010
9. Connect the horn leads at center of wheel. (without
SRS air bag)
NOTE: Horn leads is letting a bracket type pass.
(Plastic type steering wheel only)



RTW43BSH000301

3B-54 POWER-ASSISTED STEERING SYSTEM

10. 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
11. Align the each snap stud of driver air bag to the hole
of steering wheel. (with SRS air bag)
060R300030

060R300020
12. Push the SRS air bag area1 and area2. At that time
confirm the audible noise of each stud. (with SRS ai
r
bag)
060R300036
13. Enable the SRS (Refer to "Enabling the SRS" in this
section). (with SRS air bag)
14. Install driver knee bolster (reinforcement).
15. Install instrument panel lower cover, then install the
engine hood opening lever.
16. Connect the yellow 2-way SRS connector located
under the steering column. (with SRS air bag)
17. Connect the battery "-" terminal cable. (with SRS ai
r
bag)

System Inspection (with SRS air bag)
Turn the ignition switch to "ON" while watching warning
light.
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-55

Steering Column
Steering Column and Associated Parts



This illustration is based on the RHD model.
RTW43BLF000201
Legend
(1) Inflator Module or Horn Pad
(2) Steering Wheel
(3) Steering Column Cover
(4) Combination Switch and SRS Coil Assembly
(5) Steering Column Assembly
(6) Second Steering Shaft
(7) Lower Second Steering Shaft
(8) Instrument Panel Lower Cover
(9) 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. (with SRS air bag)
4. Disconnect the yellow 2-way SRS connector located
under the steering column. (with SRS air bag)

3B-56 POWER-ASSISTED STEERING SYSTEM

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. (with
SRS air bag)
5. Remove the engine hood opening lever and
steering lower cover.
6. Remove the driver knee bolster (reinforcement).
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. (with
SRS air bag)
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 ai
r
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-57

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.



RTW33BSH000401

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



430RX005-X

3B-58 POWER-ASSISTED STEERING SYSTEM

16. Remove steering column cover.
17. Disconnect the wiring harness connectors located
under the steering column.
18. 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.
430R300014
19. Remove snap ring.
20. Remove cushion rubber.
21. Remove shift lock cable (For A/T).
22. Disconnect the starter switch harness connecto
r
located under the steering column, then remove
lock cylinder assembly.

23.
Apply a setting mark (1) across the universal joint
and transfer gear to reassemble the parts in thei
r
original position, then remove steering column
assembly and second shaft.
NOTE: A setting mark can be easily made if the shaft is
withdrawn a little by loosening the steering shaft
universal joint.



RTW33BSH000501

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