Range Rover Classic. Manual — part 133
ABS
7
REPAIR
ELECTRONIC CONTROL UNIT - ECU
Service repair no - 70.65.01
Remove
1. Remove front and side trim from left hand front
seat.
2. Adjust seat to its most rearward position and
raise seat cushion height to allow accesss to
ECU.
3. Disconnect battery negative lead.
4. Release ECU plug retaining clip.
5. Manoeuvre plug in direction of arrow and detach
hooked end of plug from retaining post.
6. Remove two screws securing ECU to mounting
bracket.
7. Remove ECU from retaining clip.
Refit
8. Refit ECU securely in retaining bracket, fit and
tighten two screws.
9. Reconnect ECU harness plug. Ensure plug is
firmly located and that retaining clip secures
plug.
10. Reverse removal procedure.
70
BRAKES
8
REPAIR
SENSORS - FRONT
Service repair no - 70.65.32
CAUTION: If a sensor is removed for any
reason, a NEW sensor bush and seal must
be fitted.
Remove
1. Disconnect battery negative lead.
2. Disconnect required sensor electrical
connection, located on inner wing panel adjacent
to decker panel.
3. Remove sensor lead and pad wear harness plug
from clips.
4. Clean area surrounding sensor to prevent
ingress of dirt. Using a suitable lever pry sensor
from mounting bush.
5. Release harness cable ties, remove sensor lead
from vehicle.
6. Remove top swivel retaining bolts complete with
brake jump hose and sensor seal. Remove
sensor bush.
Refit
7. Insert new sensor bush and seal.
8. Refit brake jump hose bracket, coat bolts with
Loctite 270.
9. Lightly coat new sensor using EP 90 oil. Push
sensor through bush until it contacts exciter ring.
Rotate wheel, turning steering from lock to lock
to set sensor air gap.
10. Secure sensor lead in original position.
11. Reconnect sensor electrical connection.
12. Clear error code.
See Fault diagnosis, Fault
Diagnosis Procedure
13. Drive vehicle to ensure ABS warning light is
extinguished.
ABS
9
REPAIR
SENSORS - REAR
Service repair no - 70.65.31
CAUTION: If a sensor is removed for any
reason, a NEW sensor bush must be fitted.
Remove
1. Disconnect battery negative lead.
2. Disconnect sensor electrical connections,
located above rear axle.
3. Remove sensor from its locating clip.
4. Remove bolts securing mudshield.
5. Using a suitable lever, pry sensor from mounting
bush.
6. Release harness cable ties, remove sensor lead
from vehicle.
NOTE: The two rear sensor leads are
integral with pad wear harness. In case of
sensor failure complete harness must be
changed.
7. Remove sensor bush.
Refit
8. Fit new sensor bush.
9. Lightly grease new sensor using silicone grease.
See LUBRICANTS, FLUIDS AND
CAPACITIES, Information, Recommended
Lubricants and Fluids
10. Push sensor through bush until it touches exciter
ring. Sensor will be ’knocked back’ to correct
position when vehicle is driven.
11. Secure harness in position.
12. Reconnect sensor electrical connection.
13. Clear error code.
See Fault diagnosis, Fault
Diagnosis Procedure
Drive vehicle to ensure ABS warning light is
extinguished.
70
BRAKES
10
REPAIR
STOP LIGHT SWITCH
Service repair no - 86.65.51
Remove
1. Turn ignition off and disconnect battery negative
lead.
2. Remove lower fascia panel.
3. Disconnect multi-plug to switch.
4. Depressurise system.
See Depressurise
System
5. Depress brake pedal, pull WHITE sleeve and
BLACK plunger of switch FULLY forward.
6. Release switch retaining clips.
NOTE: If clips are difficult to release,
check WHITE sleeve is FULLY forward.
7. Remove switch.
Refit
8. Pull WHITE sleeve AND BLACK plunger of
switch fully forward.
9. Depress brake pedal, fit switch. Ensure retaining
clips are FULLY located.
10. Hold switch firmly in place, pull brake pedal back
fully to set switch.
11. Turn ignition on. Wait for ABS pump to shut off.
12. Check switch adjustment by slowly depressing
brake pedal and checking that the switch clicks
at least once before booster hisses.
13. If incorrect, adjust switch by depressing brake
pedal and pushing black plug in one detent at a
time.
14. Check that stop lamps go off when pedal is
released. If not, depress pedal and pull black
plunger out one detent at a time.
EXCITER RINGS
See REAR AXLE AND FINAL DRIVE, Repair, Rear
Hub Assembly or See FRONT AXLE AND FINAL
DRIVE, Overhaul, Front Stub Axle, Constant
Velocity Joint and Swivel Pin housing ABS
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