Opel Frontera UBS. Manual - part 1098

5B–3

ANTI–LOCK BRAKE SYSTEM

G-Sensor

Removal

350RX001

1. Remove center console.

D

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).

D

Care should be taken so that the G-sensor is not
installed in the wrong direction.

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

D

Tighten the fixing bolt to the specified torque.

Torque : 10 N·m (1.0kg·m/87 lb in)

3. Install G-sensor wiring connector (1).
4. Install center console.

D

Refer to Consoles in Body and Accessories
section.

5B–4

ANTI–LOCK BRAKE SYSTEM

Front Wheel Speed Sensor

Front Wheel Speed Sensor and Associated Parts

350RW012

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

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).

350RW010

5. Remove speed sensor.

5B–5

ANTI–LOCK BRAKE SYSTEM

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 lb in)
Caliper side : 155 N·m (15.8kg·m/115 lb ft)

350RW011

Legend

(1) Caliper Fixing Bolt
(2) Bracket
(3) Sensor Fixing Bolt
(4) Sensor
(5) Knuckle
(6) Brake Caliper

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 lb ft)

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 lb in)

NOTE: Confirm that a white line marked on the cable is
not twisted when connecting the speed sensor cable.

5. Install speed sensor connector.

5B–6

ANTI–LOCK BRAKE SYSTEM

Rear Wheel Speed Sensor

Rear Wheel Speed Sensor and Associated Parts

350RW008

Legend

(1) Speed Sensor Connector
(2) Sensor Cable Fixing Bolt

(3) Clip (11 pieces)
(4) Speed Sensor
(5) Sensor Fixing Bolt

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 lb ft)

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

specified torque.

Torque : 24 N·m (2.4kg·m/18 lb ft)

NOTE: Confirm that the cable is not twisted when
connecting the speed sensor cable.

4. Install clip.
5. Install speed sensor connector.