Page 681 of 6020

5B-2 ANTI-LOCK BRAKE SYSTEM
Service Precaution
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.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU/GM will call out those fasteners that require a
replacement after removal. ISUZU/GM will also call
out the fasteners that require thread lockers o
r
thread sealant. UNLESS OTHERWISE SPECIFIED,
do not use supplemental coatings (paints, greases,
or other corrosion inhibitors) on threaded fasteners
or fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.
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Page 682 of 6020
ANTI-LOCK BRAKE SYSTEM 5B-3
Torque Specifications
Electronic Hydraulic Control Unit N⋅m (kgf ⋅m/lb ⋅ft)
RTW 75BMF000401
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ISUZU KB P190 2007
Page 683 of 6020
5B-4 ANTI-LOCK BRAKE SYSTEM
4×
××
×
2 (Except High Ride Suspension) Front Wheel Speed Sensor N⋅m (kgf ⋅m/lb ⋅ft)
RTW 55ALF000301
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ISUZU KB P190 2007
Page 684 of 6020
ANTI-LOCK BRAKE SYSTEM 5B-5
4×
××
×
2 High Ride Suspension, 4 ×
××
×
4 Front Wheel Speed Sensor N⋅m (kgf ⋅m/lb ⋅ft)
RTW 55ALF000101
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ISUZU KB P190 2007
Page 685 of 6020
5B-6 ANTI-LOCK BRAKE SYSTEM
Rear Wheel Speed Sensor N⋅m (kgf ⋅m/lb ⋅ft)
E05R300008
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ISUZU KB P190 2007
Page 686 of 6020
ANTI-LOCK BRAKE SYSTEM 5B-7
Electronic Hydraulic Control Unit
Electronic Hydraulic Control Unit and Associated Parts
RTW 75BMF000301
Legend
(1) Flare Nut to front right wheel cylinder
(2) Flare Nut to front left wheel cylinder
(3) Electronic Hydraulic Control Unit (EHCU)
(4) Flare Nut from master cylinder front
(5) Bolt
(6) Flare Nut from master cylinder rear
(7) Flare Nut to rear wheel cylinder
Removal
1. Disconnect the harness connector.
2. Loosen five flare nuts and remove brake pipes. •
After disconnecting brake pipe, cap or tape the
openings of the brake pipe to prevent the entr
y
of foreign matter.
3. Remove three bracket fixing bolts.
Installation
1. Install EHCU and tighten the bolt to the specified
torque.
Torque: 8 N ⋅m (0.8 kgf ⋅m /69 lb·in)
2. Tighten the flare nuts to the specified torque.
Torque: 16 N ⋅m (1.6 kgf ⋅m /12 lb·ft)
3. Connect the harness connector.
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Page 687 of 6020
5B-8 ANTI-LOCK BRAKE SYSTEM
Front Wheel Speed Sensor
Front Wheel Speed Sensor and Associated Parts
4×
××
×
2 (Except High Ride Suspension)
RTW 55ALF000401
Legend
(1) Connector Portion
(2) Front Speed Sensor Assembly
(3) Bolt: Cable to Knuckle
(4) Bolt: Sensor to Knuckle
(5) Nut: Cable to Upper Link
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ISUZU KB P190 2007
Page 688 of 6020
ANTI-LOCK BRAKE SYSTEM 5B-9
4×
××
×
2 High Ride Suspension, 4 ×
××
×
4
RTW 55ALF000201
Legend
(1) Connector Portion
(2) Front Speed Sensor Assembly
(3) Bolt: Cable to Knuckle
(4) Bolt: Sensor to Knuckle
(5) Bolt: Cable to Upper Link
Removal
1. Remove speed sensor connector at connector
portion.
2. Remove sensor fixing bolt (4).
3. Remove cable fixing bolts and nut (4 ×2).
4. Disconnect the arrow mark locks of the cable clips.
5. Remove the speed sensor assembly.
Inspection and Repair
1. Check the speed sensor head for presence of
foreign materials; remove any dirt, etc.
2. Check the head for damage; replace speed senso
r
if necessary.
3. Check the speed sensor cable for short or open circuit, and replace with a new one if necessary.
To check for cable short or open, bend or stretch the cable while checking for continuity.
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ISUZU KB P190 2007