Opel Frontera UE. Manual - part 731

 

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Opel Frontera UE. Manual - part 731

 

 

BRAKE CONTROL SYSTEM

5A–55

Chart C-1-3 Rear Sensor Output Inspection Procedure

Chart TC-1 Sensor Output Inspection Procedure

Step

Action

Yes

No

1. Turn the key off.

2. Disconnect coil integrated module connector.

3. Jack up the vehicle with all four wheels off the ground 

measure the AC voltage between coil integrated module 
connector terminals while turning Rear wheel at a speed of 1 
RPS:

Is the check between coil integrated module connector (C-4) 
terminals 4 and 12 than under 200 mV?

Go to Step 2

OK.

Go to Step 3

1. Disconnect the wheel speed sensor.

2. Measure resistance between the wheel speed sensor 

connector terminals 1 and 2.

Is the check between connector (F-4) terminals 1 and 2 within 
1.2k - 2.0k ohms?

Connector is 

faulty, or open 

or short circuit 

of harness 

between wheel 

speed sensor 

connector and 

coil integrated 

module.

Inspect and 

correct the 

connector or 

harness.

Go to Step 3

Wheel speed 

sensor is faulty.

Replace the 

wheel speed 

sensor.

Go to Step 3

Reconnect all components, ensure all components are properly 
mounted.
Was this step finished?

Repeat the “Basic  

diagnostic flow 

chart" 

Go to Step 3

Step

Action

Yes

No

1. Connect TECH 2.

2. Check the wheel speed of each sensor by Data List.

Is the vehicle speed normal?

Go to Step 6

Go to Step 2

Check the sensor harness for suspected disconnection (check 
while shaking harness/connector).
Is the sensor harness connection normal?

Replace speed 

sensor.

Go to Step 4

Repair.

Go to Step 3

Check the wheel speed of each sensor by Data List.
Is the vehicle speed normal?

Go to Step 6

Go to Step 4

Check the sensor rotor.
Is the sensor rotor normal?

Replace speed 

sensor.

Go to Step 5

Replace sensor 

rotor.

Go to Step 5

Check the harness between coil integrated module and speed 
sensor.
Is the harness connection normal?

Go to Step 6

Repair harness 

or connector 
between coil 

integrated 

module and 

speed sensor.

Go to Step 6

Reconnect all components, ensure all components are properly 
mounted.
Was this step finished?

Repeat the “Basic  

diagnostic flow 

chart" 

Go to Step 6

5A–56

BRAKE CONTROL SYSTEM

Special Tools

ILLUSTRATION

TOOL NO.

TOOL NAME

5–8840–0385–0

(J–35616)

Connector test adapter kit

5–8840–0366–0

(J–39200)

High impedance 

multimeter

7000086–ISU

Tech 2 Set

(1) PCMCIA Card

(2) SAE 16/19 Adapter

(3) DLC Cable

(4) Tech 2

ANTI-LOCK BRAKE SYSTEM

5B–1

BRAKES

ANTI-LOCK BRAKE SYSTEM

CONTENTS

Service Precaution......................................... 5B - 1

Electronic Hydraulic Control Unit .................. 5B - 2

Electronic Hydraulic Control Unit and

Associated Parts ....................................... 5B - 2

Removal ..................................................... 5B - 2
Disassembled View .................................... 5B - 3
Disassembly ............................................... 5B - 3
Reassembly ................................................ 5B - 3
Installation .................................................. 5B - 3

Front Wheel Speed Sensor ........................... 5B - 4

Front Wheel Speed Sensor and 

Associated Parts ....................................... 5B - 4

Removal...................................................... 5B - 4
Inspection and Repair................................. 5B - 4
Installation................................................... 5B - 4

Rear Wheel Speed Sensor ........................... 5B - 5

Removal...................................................... 5B - 5
Inspection and Repair................................. 5B - 5
Installation................................................... 5B - 5

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  UNNEEDED 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 will call out those fasteners that require a
replacement  after removal. ISUZU will also call out
the fasteners that require thread lockers or 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.

SECTION

5B–2

ANTI-LOCK BRAKE SYSTEM

Electronic Hydraulic Control Unit

Electronic Hydraulic Control Unit and Associated Parts

350RW017

Legend

EndOFCallout

Removal

1. Remove brake pipes.

• After disconnecting brake pipe, cap or tape the 

openings of the brake pipe to prevent the entry of 
foreign matter.

2. Remove three bracke fixing bolts.

3. Disconnect red clip from harness connector.

350RW018

(1) EHCU
(2) Bolt

(3) Bracket
(4) Bolt and Nut

 

 

 

 

 

 

 

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