Page 288 of 6020

POWER-ASSISTED STEERING SYSTEM 3B-27
Supplemental Restraint System Steering Wheel & Column
Service Precaution
This steering wheel and column repair section covers
the Supplemental Restraint System (SRS) steering
column. The following repair procedures are specific to
SRS components. W hen servicing a vehicle equipped
with Supplemental Restraint System, pay close attention
to all W ARNINGS and CAUTIONS.
For detailed explanation about SRS, refer to Restraints
section.
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNECESSARY SRS SYSTEM
REPAIRS.
SAFE HANDLING OF INFLATOR MODULES
REQUIRES THE PROCEDURES DESCRIBED
BELOW TO BE FOLLOWED FOR BOTH LIVE AND
DEPLOYED MODULES.
SAFETY PRECAUTIONS MUST BE FOLLOWED
WHEN HANDLING A DEPLOYED AIR BAG
ASSEMBLY (AIR BAG). AFTER DEPLOYMENT, THE
AIR BAG ASSEMBLY (AIR BAG) SURFACE MAY
CONTAIN A SMALL AMOUNT OF SODIUM
HYDROXIDE, A BY-PRODUCT OF THE
DEPLOYMENT REACTION, THAT IS IRRITATING TO
THE SKIN AND EYES. MOST OF THE POWDER ON
THE AIR BAG ASSEMBLY (AIR BAG) IS HARMLESS.
AS A PRECAUTION, WEAR GLOVES AND SAFETY
GLASSES WHEN HANDLING A DEPLO
YED AIR BAG
ASSEMBLY, AND WASH YOUR HANDS WITH MILD
SOAP AND WATER AFTERWARDS.
WHEN CARRYING A LIVE AIR BAG ASSEMBLY,
MAKE SURE THE BAG AND TRIM COVER ARE
POINTED AWAY FROM YOU. NEVER CARRY AN AIR
BAG ASSEMBLY BY THE WIRES OR CONNECTOR
ON THE UNDERSIDE OF MODULE. IN THE CASE OF
AN ACCIDENTAL DEPLOYMENT, THE BAG WILL
THEN DEPLOY WITH MINIMAL CHANCE OF INJURY.
WHEN PLACING A LIVE AIR BAG ASSEMBLY ON
A
BENCH OR OTHER SURFACE, ALWAYS FACE THE
BAG AND TRIM COVER UP, AWAY FROM THE
SURFACE.
NEVER REST A STEERING COLUMN ASSEMBLY
ON THE STEERING WHEEL WITH THE AIR BAG
ASSEMBLY FACE DOWN AND COLUMN VERTICAL.
THIS IS NECESSARY SO THAT A FREE SPACE IS
PROVIDED TO ALLOW THE AIR BAG ASSEMBLY
TO EXPAND IN THE UNLIKELY EVENT OF
ACCIDENTAL DEPLOYMENT. OTHERWISE,
PERSONAL INJURY COULD RESULT.
TO AVOID DEPLOYMENT WHEN
TROUBLESHOOTING THE SRS SYSTEM, DO NOT
USE ELECTRICAL TEST EQUIPMENT, SUCH AS
A
BATTERY-POWERED OR A/C-POWERED VOLT-
METER, OHMMETER, ETC., OR ANY TYPE OF
ELECTRICAL EQUIPMENT OTHER THAN SPECIFIED
IN THIS MANUAL. DO NOT USE A NON-POWERED
PROBE-TYPE TESTER.
INSTRUCTIONS IN THIS MANUAL MUST BE
FOLLOWED CAREFULLY, OTHERWISE PERSONAL
INJURY MAY RESULT.
SRS Connectors
CAUTION: The special yellow color connectors are
used for the supplemental restraint system-air bag
circuit.
When removing the cable harness, do not pull the
cables. Otherwise, cable disconnection may occur.
When connecting the SRS connector, insert the
connector completely. Imperfect locking may cause
malfunction of the SRS circuit.
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ISUZU KB P190 2007
Page 290 of 6020

POWER-ASSISTED STEERING SYSTEM 3B-29
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).
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 lose its centering 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 holes on both sides of the steering cove
r
(with SRS air bag).
060R300025
7. Check the position of the pins in their holes. Push
the pin in the direction of the arrow (with SRS ai
r
bag).
RTW 73BSH000101
8. Push the four pins with a φ 5~6 mm (0.20~0.24 in)
bar (with SRS air bag).
060R300031
9. Cancel the lock to release the four pins (with SRS air bag).
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ISUZU KB P190 2007
Page 294 of 6020
POWER-ASSISTED STEERING SYSTEM 3B-33
Steering Wheel
Steering Wheel and Associated Parts
RTW 73BLF000101
Legend
(1) Horn Lead
(2) SRS Connector
(3) Steering W heel
(4) Steering W heel 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 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).
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 lose its centering 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).
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ISUZU KB P190 2007
Page 295 of 6020
3B-34 POWER-ASSISTED STEERING SYSTEM
6. Check the holes on both sides of the steering cover
(with SRS air bag).
060R300025
7. Check the position of the pins in their holes. Push
the pin in the direction of the arrow (with SRS ai
r
bag).
RTW 73BSH000101
8. Push the four pins with a φ 5~6 mm (0.20~0.24 in)
bar (with SRS air bag).
060R300031
9. Cancel the lock to release the 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
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ISUZU KB P190 2007
Page 300 of 6020

POWER-ASSISTED STEERING SYSTEM 3B-39
Combination Switch
Combination Switch and Associated Parts
RTW 73BLF000201
Legend
(1) Steering Column Cover
(2) Steering W heel
(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 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).
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 lose its centering 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).
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ISUZU KB P190 2007
Page 301 of 6020
3B-40 POWER-ASSISTED STEERING SYSTEM
7. Disable the SRS (Refer to "Disabling the SRS" in
this section) (with SRS air bag).
8. Check the holes on both sides of the steering cover.
060R300025
9. Check the position of the pins in their holes. Push the pin in the direction of the arrow (with SRS ai
r
bag).
RTW 73BSH000101
10. Push the four pins with a φ 5~6 mm (0.20~0.24 in)
bar (with SRS air bag).
060R300031
11. Cancel the lock to release the 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
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ISUZU KB P190 2007
Page 303 of 6020

3B-42 POWER-ASSISTED STEERING SYSTEM
CAUTION: When turning the SRS coil fully
counterclockwise, stop turning if resistance is felt.
Further forced turning may damage the cable in the
SRS coil (with SRS air bag).
826RW 014
Legend
(1) Neutral mark
RTW 73BSH001301
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 cannot be replaced separately.
Therefore, be sure not to remove the SRS coil from the
combination switch assembly (with SRS air bag).
RTW 73BSH001001
Installation
1. Install the combination switch assembly with SRS coil (with SRS air bag).
2. Turn the SRS coil fully counterclockwise, 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 will not catch
wiring (with SRS air bag).
825RS048
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ISUZU KB P190 2007
Page 306 of 6020
POWER-ASSISTED STEERING SYSTEM 3B-45
Lock Cylinder
Lock Cylinder and Associated Parts
RTW 73BLF000401
Legend
(1) Steering Column Cover
(2) Steering W heel
(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 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).
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ISUZU KB P190 2007