brake rotor ISUZU KB P190 2007 Workshop Owner's Manual

5A-58 BRAKE CONTROL SYSTEM
DTC C0232 (Flash Code 32) Rear Right Wheel Speed Sensor Signal
Malfunction



RTW 75AMF001301

Step Action Value(s) Yes No
1 W ere the steps of the “Basic Diagnostic Flow Chart”
performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Check the tire for the following conditions.
• Tire specification
• W ear of the outer surface
2. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 3
3 Note:
This DTC is set when certain tire is rotated alone.

Has certain tire been rotated alone by performing for
lift-up or roller tester? - Verify repair Go to Step 4
4 Is the rear right wheel bearing rattling?
- Go to Step 11 Go to Step 5
5 Is the rear right wheel speed sensor or the sensor
rotor rattling? - Go to Step 12 Go to Step 6
6 Is iron powder attached to the rear right wheel speed
sensor or the sensor rotor? - Go to Step 13 Go to Step 7

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ISUZU KB P190 2007

BRAKE CONTROL SYSTEM 5A-59
Step Action Value(s) Yes No
7 Check the rear right wheel speed sensor. Refer to
"W heel Speed Sensor Inspection procedure"
W as a problem found? - Go to Step 10 Go to Step 8
8 Does the sensor rotor have missing tooth or saw- toothed? - Go to Step 14 Go to Step 9
9 1. Clear the DTC.
2. Test run the vehicle, and check the DTC. Is the DTC displayed repeatedly? - Go to Step 18 Go to Step 17
10 Is the wheel speed sensor damaged or saw-toothed?
- Go to Step 15 Go to Step 16
11 Repair or replace the wheel bearing.
Is the action complete? - Verify repair -
12 Repair or replace the rear right speed sensor or the
sensor rotor.
Is the action complete? - Verify repair -
13 Repair the rear right speed sensor or the sensor rotor.
Is the action complete? - Verify repair -
14 Replace the sensor rotor. Is the action complete? - Verify repair -
15 Replace the rear right wheel speed sensor.
Is the action complete? - Verify repair -
16 Repair or replace the rear right speed sensor circuits.
Is the action complete? - Verify repair -
17 Check the connection btween the EHCU and the rear
right wheel speed sensor and repair as necessary
Refer to "Note on Intermittents".
Is the action complete? - Verify repair -
18 Replace EHCU.
Note: Check the EHCU type for specification, when
the EHCU is replaced.
(Specification ; 2W D model or 4W D model)
Is the action complete? - Verify repair -


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ISUZU KB P190 2007

5A-62 BRAKE CONTROL SYSTEM
DTC C0236 (Flash Code 36) Rear Left Wheel Speed Sensor Signal Malfunction



RTW 75AMF001301

Step Action Value(s) Yes No
1 W ere the steps of the “Basic Diagnostic Flow Chart”
performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Check the tire for the following conditions.
• Tire specification
• W ear of the outer surface
2. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 3
3 Note:
This DTC is set when certain tire is rotated alone.

Has certain tire been rotated alone by performing for
lift-up or roller tester? - Verify repair Go to Step 4
4 Is the rear left wheel bearing rattling?
- Go to Step 11 Go to Step 5
5 Is the rear left wheel speed sensor or the sensor
rotor rattling? - Go to Step 12 Go to Step 6
6 Is iron powder attached to the rear left wheel speed
sensor or the sensor rotor? - Go to Step 13 Go to Step 7
7 Check the rear left wheel speed sensor. Refer to
"W heel Speed Sensor Inspection procedure"
W as a problem found? - Go to Step 10 Go to Step 8

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ISUZU KB P190 2007

BRAKE CONTROL SYSTEM 5A-63
Step Action Value(s) Yes No
8 Does the sensor rotor have missing tooth or saw-
toothed? - Go to Step 14 Go to Step 9
9 1. Clear the DTC.
2. Test run the vehicle, and check the DTC. Is the DTC displayed repeatedly? - Go to Step 18 Go to Step 17
10 Is the wheel speed sensor damaged or saw-toothed?
- Go to Step 15 Go to Step 16
11 Repair or replace the wheel bearing.
Is the action complete? - Verify repair -
12 Repair or replace the rear left speed sensor or the
sensor rotor.
Is the action complete? - Verify repair -
13 Repair the rear left speed sensor or the sensor rotor. Is the action complete? - Verify repair -
14 Replace the sensor rotor.
Is the action complete? - Verify repair -
15 Replace the rear left wheel speed sensor.
Is the action complete? - Verify repair -
16 Repair or replace the rear left speed sensor circuits.
Is the action complete? - Verify repair -
17 Check the connection btween the EHCU and the rear
left wheel speed sensor and repair as necessary
Refer to "Note on Intermittents".
Is the action complete? - Verify repair -
18 Replace EHCU.
Note: Check the EHCU type for specification, when
the EHCU is replaced.
(Specification ; 2W D model or 4W D model)
Is the action complete? - Verify repair -


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ISUZU KB P190 2007

5A-64 BRAKE CONTROL SYSTEM
DTC C0238 (Flash Code 38) Front Speed Sensor Correlation

Step Action Value(s) Yes No
1 W ere the steps of the “Basic Diagnostic Flow Chart”
performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Check for the tire size of each wheels.
2. If the tire size is different, replace the tire.
3. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 3
3 1. Check for the gear ratio of a front axle differential gear and a rear axle differential gear.
2. If the gear ratio is different, repair the gear ratio.
3. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 4
4 Select “Display DTCs” with the Tech 2.
Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech 2.
Are any DTCs stored? - Go to Step 5 Verify repair
5 1. Check for a poor connection at the wheel speed sensor harness connector.
2. Check installation condition for wheel speed sensor.
3. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 6
6 1. Check condition for sensor rotor.
2. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 7
7 1. Ignition “OFF” disconnect the EHCU and wheel
speed sensor.
2. Check the circuit between EHCU and wheel speed sensor. (short ground, or short to voltage)
3. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 8
8 1. Ignition “OFF”.
2. Check the EHCU circuit for an open, short to ground, or short to voltage. Also, check the EHCU
ignition feed circuit for an open or short to ground
and the EHCU ground circuit for an open or short to
voltage.
3. If a problem is found, repair as necessary. W as a problem found? - Verify repair Go to Step 9
9 1. Ignition “ON”, engine “OFF”.
2. Select “Display DTCs” with the Tech 2. Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech 2.
Are any DTCs stored? - Go to Step 10 Verify repair

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ISUZU KB P190 2007

ANTI-LOCK BRAKE SYSTEM 5B-1
SECTION 5B
ANTI-LOCK BRAKE SYSTEM
TABLE OF CONTENTS PAGE
Ser vice Precau tion ....................................................................................................................... 5B – 2
Torque Specifications ................................................................................................................. 5B – 3
Electronic Hydraulic Control Unit ............................................................................................ 5B – 7
Electronic Hydraulic Control Unit and Associated Parts ............................................. 5B – 7
Removal ..................................................................................................................................... 5B – 7
Installation ............................................................................................................................... . 5B – 7
Front Wheel Speed Sensor ........................................................................................................ 5B – 8
Front Wheel Speed Sensor and Associated Parts ......................................................... 5B – 8
Removal ..................................................................................................................................... 5B – 9
Inspection and Repair ............................................................................................................ 5B – 9
Installation ............................................................................................................................... . 5B – 10
Rear Wheel Speed Sensor ......................................................................................................... 5B – 11
Rear Wheel Speed Sensor and Associated Parts .......................................................... 5B – 11
Removal ..................................................................................................................................... 5B – 11
Inspection and Repair ............................................................................................................ 5B – 11
Installation ............................................................................................................................... . 5B – 12
Front Sensor Rotor ...................................................................................................................... 5B – 13
Front Sensor Rotor and Associated Parts ....................................................................... 5B – 13
Removal ..................................................................................................................................... 5B – 13
Inspection and Repair ............................................................................................................ 5B – 14
Installation ............................................................................................................................... . 5B – 14
Rear Sensor Rotor ........................................................................................................................ 5B – 16
Rear Sensor Rotor and Associated Parts ......................................................................... 5B – 16
Removal ..................................................................................................................................... 5B – 16
Inspection and Repair ............................................................................................................ 5B – 17
Installation ............................................................................................................................... . 5B – 17
G-Sensor .............................................................................................................................. ........... 5B – 19
G-Sensor and Associated Parts .......................................................................................... 5B – 19
Removal ..................................................................................................................................... 5B – 19
Installation ............................................................................................................................... . 5B – 19
Special Tools ................................................................................................................................. 5B – 20

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ANTI-LOCK BRAKE SYSTEM 5B-13
Front Sensor Rotor
Front Sensor Rotor and Associated Parts
411R300010
Legend
(1) Sensor Rotor
(2) Hub and Disc


(3) Disc Rotor fixing Bolt
(4) Hub and Disc Assembly
Removal
1. Remove the hub and disc assembly. (Refer to the
section Front wheel Drive).
2. Remove two disc rotor fixing bolts on a diagonal.
3. Drive out the sensor rotor using a metal bar and hammer through the two bolt holes.
• Discard the used sensor rotor.
4. Install disc rotor fixing bolts and tighten them to the specified torque.
Torque: 103 N ⋅m (10.5 kgf ⋅m / 76 lb·ft)



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ISUZU KB P190 2007

5B-14 ANTI-LOCK BRAKE SYSTEM
411R300007
Legend
(1) Metal Bar


(2) Sensor Rotor
Inspection and Repair
Make all necessary adjustments, repairs or part
replacement.
• Check damage or powdered iron sticking to the
sensor rotor.
• Check play in the sensor rotor.
• Check a broken tooth or indentation in the senso
r
rotor.
Installation
1. Set a new sensor rotor.
2. Install the new sensor rotor in the hub, using installer 5-8840-2789-0 and grip 5-8840-0007-0.
NOTE: Sensor rotor is surely using a new article.

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ANTI-LOCK BRAKE SYSTEM 5B-15
411R300006
Legend
(1) Hub and Disc
(2) Sensor Rotor


(3) Press
3. Measure the gap “A” at 4 points at intervals of 90 °
(degrees).
Confirm that the gap “A” should be within the
specified range.
Range

Type A
4 × 2 (Except High Ride
Suspension) 7.0
− 7.4 mm
(0.276 − 0.291 in)
4 × 4
4 × 2 High Ride Suspension 7.2
− 7.6 mm
(0.283 − 0.299 in)

411R300016
4. Install the hub and disc assembly. (Refer to the
section Front wheel Drive).


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ISUZU KB P190 2007

5B-16 ANTI-LOCK BRAKE SYSTEM
Rear Sensor Rotor
Rear Sensor Rotor and Associated Parts




RTW 55BLF000101

Legend
(1) Axle Shaft Assembly with Brake
(2) Sensor Rotor


(3) Front
Removal
1. Remove the axle shaft assembly with brake. (Refer
to the section Rear Axle)


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ISUZU KB P190 2007