Opel Frontera UBS. Service 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.
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