2007 ISUZU KB P190 oil

3B-20 POWER-ASSISTED STEERING SYSTEM
Reassembly
1. Install oil seal to front housing. Be sure to discard
used oil seal, and always use new parts fo
r
installation.
CAUTION: When installing the oil seal, be careful
not to damage the oil seal contacting surface of the
housing.
2. Install shaft assembly.
3. Install the vanes to roter with curved face in contact with the inner wall of cam.
442RS005
4. Install roter and vanes to cam.
5. Install pin to front housing.
6. Install two new O-rings to front housing. Be sure to discard used O-ring.
7. Install side plate.
CAUTION: When installing side plate, be careful not
to damage its inner surface. Damaged side plate
may cause poor pump performance, pump seizure
or oil leakage.
8. Install pump cartridge assembly to front housing.
9. Install snap ring to shaft end.
10. Install rear housing with a new O-ring. Be sure to discard used O-ring. Then install bolt and tighten it
to specified torque.
Torque: 25 N ･
･･
･
m (2.5 kgf ･
･･
･
m/18 lb ･
･･
･
ft)
11. Install suction pipe with a new O-ring. Be sure to discard used O-ring. Then install bolt and tighten it
to specified torque.
Torque: 10 N ･
･･
･
m (1.0 kgf ･
･･
･
m/87 lb ･
･･
･
in)
12. Install relief valve and spring.
13. Install connector with a new O-ring. Be sure to discard used O-ring. Tighten the connector to
specified torque.
Torque: 59 N ･
･･
･
m (6.0 kgf ･
･･
･
m/43 lb ･
･･
･
ft)

Main Data and Specifications
General Specifications
Oil pump Type Vane
Operating fluid
ATF DEXRON®―III


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3B-24 POWER-ASSISTED STEERING SYSTEM
Disassembly
1. Clean the oil pump with solvent (plug the discharge
and suction ports to prevent the entry of solvent).
Be careful not to expose the oil seal of the shaft assembly to solvent.
2. Remove the bolt, suction pipe and O-ring.
3. Remove the nut and bracket.
4. Remove the nut, washer and joint.
5. Remove the connector, O-ring, relief valve and spring.
6. Remove the bolt, rear housing and O-ring.
7. Remove the pump cartridge assembly and the side plate from the shaft. Remove two O-rings.

Inspection and Repair
Make all necessary adjustments, repairs, and part
replacements if wear, damage, or other problems are
discovered during inspection.

Rotor
442RS002
Check that the groove in the vane is free from excessive
wear and that the vane slides smoothly. W hen part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.

Vane
442RS003
Sliding faces of the vane should be free from wear. (In
particular the curved face at the tip that makes contact
with the cam should be free from wear and distortion).
W hen part replacement becomes necessary, the pump
cartridge should be replaced as a subassembly.

Cam
The inner face of the cam should have a uniform
contact pattern without a sign of step wear. W hen part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.

Side Plate
The sliding faces of parts must be free from step wear
(more than 0.01 mm (0.0004 in)), which can be felt by a
finger nail.
Parts with minor scores may be reused after lapping the
face.

Relief Valve
The sliding face of the valve must be free from burrs
and damage. Parts with minor scores may be reused
after smoothing with emery cloth (#800 or finer).

Shaft and Housing Assembly
The bushing fitting face on the shaft must be free from
damage and wear.

O-ring
Be sure to discard used parts, and always use new
parts for installation. Prior to installation, lubricate all
seals and rings with power steering fluid.



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

POWER-ASSISTED STEERING SYSTEM 3B-25
Reassembly
1. Install two new O-rings on shaft and housing
assembly. Be sure to discard used O-ring.
2. Install side plate.
CAUTION: When installing side plate, be careful not
to damage its inner surface. A damaged side plate
may cause poor pump performance, pump seizure
or oil leakage.
3. Install the vanes on rotor with curved face in contact with the inner wall of cam.
442RS005
4. Install rotor and vanes on cam.
5. Install pump cartridge assembly on shaft and housing assembly.
6. Install a new O-ring on rear housing. Be sure to discard used O-ring. Then install bolt and tighten it to
specified torque.
Torque: 25 N ⋅
⋅⋅
⋅
m (2.5 kgf ⋅
⋅⋅
⋅
m/18 lb ⋅
⋅⋅
⋅
ft)
7. Install a new O-ring on suction pipe. Be sure to
discard used O-ring. Then install bolt and tighten it to
specified torque.
Torque: 10 N ⋅
⋅⋅
⋅
m (1.0 kgf ⋅
⋅⋅
⋅
m/87 lb ⋅
⋅⋅
⋅
in)
8. Install relief valve and spring.
9. Install a new O-ring on connector. Be sure to discard used O-ring. Tighten the connector to specified
torque.
Torque: 59 N ⋅
⋅⋅
⋅
m (6.0 kgf ⋅
⋅⋅
⋅
m/43 lb ⋅
⋅⋅
⋅
ft)
10. Install new O-rings on joint. Be sure to discard used
O-rings. Temporarily tighten the nut with washer.
11. Install bracket. Then install nut and tighten it to specified torque.
Torque: 12 N ⋅
⋅⋅
⋅
m (1.2 kgf ⋅
⋅⋅
⋅
m/104 lb ⋅
⋅⋅
⋅
in)
12. Tighten the nut to the specified torque (This nut was
temporarily tightened in step 10).
Torque: 20 N ⋅
⋅⋅
⋅
m (2.0 kgf ⋅
⋅⋅
⋅
m/14 lb ⋅
⋅⋅
⋅
ft)


Main Data and Specifications
General Specifications
Oil pump Type Vane
Operating fluid
ATF DEXRON®―III


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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).


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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).

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3B-36 POWER-ASSISTED STEERING SYSTEM


RTW 73BSH001301
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 has not been applied in this section.
NOTE: Confirm SRS and horn harness connector is
fixed by the steering wheel.

RTW 73BSH000701

CAUTION: Never apply force to the steering wheel in
the direction of the shaft by using a hammer o
r
other 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: 35 N ⋅
⋅⋅
⋅
m (3.6 kgf ⋅
⋅⋅
⋅
m/26 lb ⋅
⋅⋅
⋅
ft)
3. Support the inflator module and carefully connect the
SRS connector (1) and horn lead (2) (with SRS ai
r
bag).

RTW 73BSH001101
4. Connect the horn leads at center of wheel (without SRS air bag).
NOTE: The horn leads (1) are passed along the top o
f
the bracket (2).
(Plastic type steering wheel only)



RTW 73BSH000801



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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).

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

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


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007