2007 ISUZU KB P190 engine mount

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Page 450 of 6020

Page 451 of 6020

ISUZU KB P190 2007 Workshop Repair Manual REAR AXLE 4B-7
REAR AXLE ASSEMBLY
General Description
A03R300001

The rear axle assembly is of the semi–floating type in
which the vehicle weight is carried on the axle
housing .
The cen

REAR AXLE 4B-7
REAR AXLE ASSEMBLY
General Description
A03R300001

The rear axle assembly is of the semi–floating type in
which the vehicle weight is carried on the axle
housing .
The center line of the pinion gear is below the cente
r
line of the ring gear (hypoid drive).
All parts necessary to transmit power from the
propeller shaft to the rear wheels are enclosed in a
banjo type axle housing.
The φ220 mm (8.6 in) or φ194mm (7.6 in) ring gea
r
rear axle uses a conventional ring and pinion gear set
to transmit the driving force of the engine to the rea
r
wheels. This gear set transfers this driving force at a
90 degree angle from the propeller shaft to the drive
shafts.
The axle shafts are supported at the wheel end of the
shaft by a double tapered roller bearing.
The pinion gear is supported by two tapered rolle
r
bearings. The pinion depth is set by a shim pack
located between the gear end of the pinion and the
roller bearing that is pressed onto the pinion. The
pinion bearing preload is set by crushing a collapsible
spacer between the bearings in the axle housing.
The ring gear is bolted onto the differential cage with
12 bolts.
The differential cage is supported in the axle housing
by two tapered roller bearings. The differential and ring
gear are located in relationship to the pinion by using
selective shims and spacers between the bearing and
the differential cage. To move the ring gear, shims are
deleted from one side and an equal amount are added
to the other side. These shims are also used to
preload the bearings, which are pressed onto the
differential cage. Two bearing caps are used to hold
the differential into the rear axle housing.
The differential is used to allow the wheels to turn at
different rates of speed while the rear axle continues
to transmit the driving force. This prevents tire
scuffing when going around corners and prevents
premature wear on internal axle parts.
The rear axle is sealed with a pinion seal, a seal at
each axle shaft end, and by a liquid gasket between
the differential carrier and the axle housing.

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ISUZU KB P190 2007

Page 510 of 6020

Page 615 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 5A-22 BRAKE CONTROL SYSTEM
System Components
Electronic Hydraulic Control Unit (EHCU), four W heel
Speed Sensors, two W arning Lamps, and G sensor.

Electronic Hydraulic Control Unit (EHCU)

5A-22 BRAKE CONTROL SYSTEM
System Components
Electronic Hydraulic Control Unit (EHCU), four W heel
Speed Sensors, two W arning Lamps, and G sensor.

Electronic Hydraulic Control Unit (EHCU)
The EHCU consists of ABS control circuits, fault
detector, and a fail-safe. It drives the EHCU according
to the signal from each sensor, cancelling ABS to return
to normal braking when a malfunction has occurred in
the ABS.
The EHCU has a self-diagnosing function which can
indicate faulty circuits during diagnosis.
The EHCU is mounted on the engine compartment rear
left side. It consists of a motor, solenoid valves and a
fail safe relay.
Solenoid Valves: Reduces or holds the caliper fluid
pressure for each front brake or both rear brakes
according to the signal sent from the EHCU.
Buffer chamber: Temporarily holds the brake fluid that
returns from the front and rear brake so that pressure of
front brake can be reduced smoothly.
Motor: Drives the pump according to the signal from
EHCU.
Fail safe Relay: W hen failure occurs in ABS.
The power supply to solenoid Valve is cut.

ABS Warning Lamp

RTW 75ASH000101
Vehicles equipped with the Anti-lock Brake System
have an amber “ABS” warning lamp on the instrument
panel. The “ABS” warning lamp will illuminate if a
malfunction in the Anti-lock Brake System is detected
by the Electronic Hydraulic Control Unit (EHCU). In the
case of an electronic malfunction, the EHCU will turn
“ON” the “ABS” warning lamp and disable the anti-lock
braking function.

The “ABS” warning lamp will turn “ON” for
approximately three seconds after the ignition switch is
in the “ON” position.
If the “ABS” warning lamp stays “ON” after the ignition
switch is in the “ON” position, or comes “ON” and stays
“ON” while driving, the Anti-lock Brake System should
be inspected for a malfunction according to the
diagnostic procedure.

Wheel Speed Sensor (WSS)
It consists of a sensor and a rotor. The sensor is
attached to the knuckle on the front wheels and to the
rear wheels.
The rotor is press-fit in the axle shaft.

G Sensor
The G sensor detects the vehicle deceleration speed
and sends a signal to the EHCU. In 4W D operation, all
four wheels may be decelerated in almost the same
phase, since all wheels are connected mechanically.
This tendency is noticeable, particularly on roads with
low friction coefficient, and the ABS control is adversely
affected.
The G sensor judges whether the friction coefficient of
the road surface is low or high, and changes the
EHCU's operating system to ensure ABS and EBD
control.

Normal and Anti-lock Braking
Under normal driving conditions, the Anti-lock Brake
System functions the same as a standard power
assisted brake system. However, with the detection of
wheel lock-up, a slight bump or kick-back will be felt in
the brake pedal. This pedal “bump” will be followed by a
series of short pedal pulsations which occurs in rapid
succession. The brake pedal pulsation will continue
until there is no longer a need for the anti-lock function
or until the vehicle is stopped. A slight ticking or popping
noise may be heard during brake applications when the
anti-lock feature is being used.
W hen the anti-lock feature is being used, the brake
pedal may rise even as the brakes are being applied.
This is also normal. Maintaining a constant force on the
pedal will provide the shortest stopping distance.

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ISUZU KB P190 2007

Page 638 of 6020

ISUZU KB P190 2007 Workshop Repair Manual BRAKE CONTROL SYSTEM 5A-45
Braking Sound (From EHCU) Is Heard While Not Braking

Step Action Value(s) Yes No
1 Is this the first vehicle start after engine start?
- It is self
checking sou

Page 730 of 6020

ISUZU KB P190 2007 Workshop Repair Manual BRAKES 5C-31
ADJUSTMENT PROCEDURE OF BRAKE PEDAL

The push rod serves as the brake pedal stopper when the
pedal is fully released.
Brake pedal height adjustment should be performed as fo

BRAKES 5C-31
ADJUSTMENT PROCEDURE OF BRAKE PEDAL

The push rod serves as the brake pedal stopper when the
pedal is fully released.
Brake pedal height adjustment should be performed as follows.

RTW 35CSH000601

Brake Pedal - Height
Measure the brake pedal height after making sure the pedal is
fully returned by the pedal return spring.
Note:
Pedal height (L2) must be measured after starting the
engine and increasing the revolution several times by
stepping on the accelerator pedal. mm (in)
Pedal free play (L1) 6 - 10 (0.24 - 0.39)
M/T 174 - 186 (6.85 - 7.32) Height (L2)
A/T 176 - 188 (6.93 - 7.40)
Note:
Pedal free play must be measured after turning off the
engine and stepping on the brake pedal firmly five times
or more.
If the measured value deviates from the above range, adjust
the brake pedal as follows:
a) Disconnect the stop lamp switch.
b) Loosen the lock nut on the push rod.
c)
Adjust the brake pedal to the specified height by rotating the
push rod in the appropriate direction.

Lock Nut Torque
N⋅m (kgf ⋅m/lb ⋅
⋅⋅
⋅
ft)
15 - 25 (1.5 – 2.5 / 11 - 18)

d) Install the stop lamp switch.

Note:
Pedal height (L
2) must be 57 mm (2.24 in.) or more when
applying about 50 kg (110.25 lbs.) of stepping force.

331R300005

How to connect the CLEVICE of the BOOSTER ROD with the
PEDAL ARM and how to adjust the PEDAL SW .
After connecting the CLEVIS of the BOOSTER ROD to the
PEDAL ARM, adjust the PEDAL SW mounted (PDA) to the
PEDAL BRACKET using the procedure explained below.
1. Set the hole of the CLEVIS of the BOOSTER & M/CYL
ROD with the hole in the PEDAL ARM.
2. Enter the PIN; PUSH ROD to the PEDAL to the holes from the left side of the PEDAL.
3. Enter and fix the PIN; SNAP PIN FIX to the DITCH o
f
the PIN; PUSH ROD to PEDAL from right side of the
PEDAL.
4. Release the LOCK by turning the SW ITCH counter- clock-wise.

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ISUZU KB P190 2007

Page 760 of 6020

ISUZU KB P190 2007 Workshop Repair Manual BRAKES 5C-61

RTW 75CSH002701

Important Operation-Removal
1. Brake pipe
W hen hurdling, be careful not to spill brake fluid over the
painted surfaces, as damage to the paint finish

Page 826 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ENGINE MECHANICAL 6A – 21
Engine Mounting Bracket

N·m (kg·m/lb·ft)
022R300001

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