SECTION 5B - ANTI-LOCK BRAKE SYSTEM

Service Precaution

Electronic Hydraulic Control Unit

and Associated Parts

Removal

Installation

G-Sensor

Removal

Inspection and Repair

Installation

Front Wheel Speed Sensor

and Associated Parts

Removal

Inspection and Repair

Installation

Rear Wheel Speed Sensor

and Associated Parts

Removal

Inspection and Repair

Installation

Service Precaution

WARNING: IF SO EQUIPPED WITH 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.

HOLDEN will call out those fasteners that require a

replacement after removal. HOLDEN 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.

CAUTION: Replace all components included in

repair kits used to service this system. Lubricate

rubber parts with clean, fresh brake fluid to ease

assembly. Do not use shop air with in-line

lubricators on brake parts, as damage to rubber

components may result. If any hydraulic component

is removed or brake line disconnected, it may be

necessary to bleed part or all of the brake system.

NOTE: The use of rubber hoses or parts other than

those furnished specifically for the Anti-lock Brake

System may lead to functional problems requiring major

overhaul.

Techline

Electronic Hydraulic Control Unit

Electronic Hydraulic Control Unit and Associated Parts

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Removal

1.Remove battery ASM.

2.Remove harness connector.

3.Remove EHCU fixing nuts.

4.Remove brake pipes.

•After disconnecting brake pipe, cap or tape the

openings of the brake pipe to prevent the entry of

foreign matter.

5.Remove hydraulic unit fixing nuts.

Installation

To install, follow the removal steps in the reverse order,

noting the following points:

Torque

Hydraulic unit fixing nuts : 22 N·m (2.2kg·m/16

lbft)

Ground cable : 14 N·m (1.4kg·m/10 lbft)

Brake pipe (joint bolts) : 16 N·m (1.6kg·m/12 lbft)

•After installing the hydraulic unit, bleed brakes

completely. Refer to Servicing in Power Assisted

Brake System section.

Legend

(1) Connector

(2) Hydraulic Unit ASM

(3) Bolts

(4) Nut

(5) Bolt

G-Sensor

Removal

350RX001

1.Remove center console.

•Refer to Consoles in Body and Accessories

section.

2.Remove clip from G-sensor connector (1), then

disconnect connector.

3.Remove G-sensor assembly fixing bolt (2).

4.Remove G-sensor assembly (3).

Inspection and Repair

Refer to Chart B-5 in Brake Control System section.

Installation

1.Install G-sensor assembly (3).

•Care should be taken so that the G-sensor is not

installed in the wrong direction.

2.Install G-sensor assembly fixing bolt (2).

•Tighten the fixing bolt to the specified torque.

Torque : 10 N·m (1.0kg·m/87 lbin)

3.Install G-sensor wiring connector (1).

4.Install center console.

•Refer to Consoles in Body and Accessories

section.

Front Wheel Speed Sensor

Front Wheel Speed Sensor and Associated Parts

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Removal

1. Remove speed sensor connector.

2. Remove sensor cable fixing bolt (Upper side).

3. Remove sensor cable fixing bolt (Lower side).

4. Remove the speed sensor cable fixing bolts (1) and

caliper fixing bolt (2) from caliper side speed sensor

cable bracket (3).

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5. Remove speed sensor.

Legend

(1) Speed Sensor Connector

(2) Sensor Cable Fixing Bolt (Upper side)

(3) Sensor Cable Fixing Bolt (Lower side)

(4) Sensor Cable Fixing Bolt (Sensor side)

(5) Speed Sensor

Inspection and Repair

1.Check the speed sensor pole piece for presence of

foreign materials; remove any dirt, etc.

2.Check the pole piece for damage; replace speed

sensor 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.

4.Check the sensor ring for damage including tooth

chipping, and if damaged, replace the sensor ring

assembly. Refer to Front Hub and Disc in Drive

Shaft System section.

Installation

1. Install speed sensor and take care not to hit the

speed sensor pole piece during installation.

2. Install speed sensor fixing bolt and tighten the fixing

bolt to the specified torque.

Torque

Sensor side : 8 N·m (0.8kg·m/69 lbin)

Caliper side : 155 N·m (15.8kg·m/115 lbft)

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3. Install speed sensor cable fixing bolt (Lower side)

and tighten the fixing bolt to the specified torque.

Torque : 24 N·m (2.4kg·m/18 lbft)

4. Install speed sensor cable fixing bolt (Upper side)

and tighten the fixing bolt to the specified torque.

Torque : 6 N·m (0.6kg·m/52 lbin)

NOTE: Confirm that a white line marked on the cable is

not twisted when connecting the speed sensor cable.

5. Install speed sensor connector.

Legend

(1) Caliper Fixing Bolt

(2) Bracket

(3) Sensor Fixing Bolt

(4) Sensor

(5) Knuckle

(6) Brake Caliper

Rear Wheel Speed Sensor

Rear Wheel Speed Sensor and Associated Parts

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Removal

1.Remove speed sensor connector.

2.Remove clip.

3.Remove sensor cable fixing bolt.

4.Remove sensor fixing bolt.

5.Remove speed sensor.

350RS035

Inspection and Repair

1.Check the speed sensor pole piece for presence of

foreign materials; remove any dirt, etc.

2.Check the pole piece for damage, and replace the

speed sensor if necessary.

3.Check the speed sensor cable for a short or an

open, and replace with a new one if necessary. To

check for cable short or open, bend or stretch the

cable while checking for continuity.

4.Check the sensor ring for damage including tooth

chipping. If damaged replace the axle shaft

assembly. Refer to Front Hub and Disc in Drive

Shaft System section.

Installation

1. Install the speed sensor and take care not to hit the

speed sensor pole piece during installation.

2. Install the sensor fixing bolt and tighten it to the

specified torque.

Torque : 18 N·m (1.8kg·m/13 lbft)

3. Install the sensor cable fixing bolt and tighten it to

the specified torque.

Torque : 24 N·m (2.4kg·m/18 lbft)

NOTE: Confirm that the cable is not twisted when

connecting the speed sensor cable.

4. Install clip.

5. Install speed sensor connector.

Legend

(1) Speed Sensor Connector

(2) Sensor Cable Fixing Bolt

(3) Clip (11 pieces)

(4) Speed Sensor

(5) Sensor Fixing Bolt