Range Rover Classic. Manual — part 186
86
ELECTRICAL
32
REPAIR
MAP LIGHT BULB RENEWAL
Service repair no - 86.45.09
Remove
1. Disconnect battery negative lead.
2. Pry slot to open cover.
3. Remove bulbholder.
4. Remove bulb from holder.
5. Replace bulb.
Refit
6. Reverse removal procedure.
ELECTRICAL SEAT FAILURE
NOTE: Carry out following procedure if
seat failure occurs with seat obscuring
fixing bolts.
1. Check 30A fuses and courtesy lamp fuse B2.
2. Disconnect 9 way connector between seat ECU
and motors (memory seat). Power motor from a
seperate battery source.
3. If partial failure occurs in forward and reverse
travel only, change drive cable as required to
move seat to desired position.
4. If 2. and 3. not possible, move seat by driving
cables manually.
DRIVE CABLE - ELECTRIC SEAT
Remove
1. Remove seat.
See CHASSIS AND BODY,
Repair, Front Seat Electrical
2. Cut cable tie, remove drive cable securing clips.
3. Remove drive cable from gearbox.
4. Remove drive cable from motor by unscrewing
ferrule.
5. Cut cable ties from drive cable. Note position for
reassembly.
6. Remove drive cable. If cable has failed, ’twist’
may have occurred in seat. To rectify this, use a
small screwdriver to turn gearbox of failed cable
until twist is removed.
Refit
7. Reverse removal procedure. Ensuring new cable
ties are fitted in original positions.
8. Operate seats to full extent of travel. To ensure
that ’twist’ has been removed, check that both
gearboxes stop simultaneously.
ELECTRICAL
33
REPAIR
MEMORY SEAT - SWITCH
Service repair no - 86.75.03
Remove
1. Disconnect battery negative lead.
2. Pry finger tip controls from top of switch housing.
3. Remove switch housing cover by lightly
depressing sides of switch housing to disengage
clips.
4. Remove sealing membrane.
5. Remove switch securing screws, lift switch to
gain access to multiplugs.
6. Disconnect multiplugs and remove switch.
Refit
7. Reverse removal procedure. Renew sealing
membrane.
MEMORY SEAT SWITCH - CLEAN
NOTE: If a seat switch problem is
diagnosed, the cause may be liquid
spillage or ingress of foreign matter. The
switch may be cleaned using the following
procedure.
1. Remove seat switch.
See Memory Seat -
Switch
2. Discard sealing membrane.
3. Clean affected area of switch using a slightly
damp clean cloth.
4. If contamination still exists, clean switch using a
clean cloth slightly dampened with methylated
spirits.
5. Allow switch to dry completely.
6. Refit switch using a new membrane.
7. Check seat switch for satisfactory operation.
86
ELECTRICAL
34
REPAIR
ECU - MEMORY SEAT
Remove
1. Remove driver’s seat.
See CHASSIS AND
BODY, Repair, Front Seat Electrical
2. Disconnect connector from seat.
3. Remove cable ties.
4. Disconnect sensor and seat switch multiplug,
remove from seat.
5. Disconnect seat motor multiplug.
6. Turn ECU retaining turnbuckle half a turn.
7. Remove ECU.
Refit
8. Reverse removal procedure. Ensuring cable
retaining clips are correctly located.
See
Memory Seat - Harness Layout
9. Initialise system.
RADIO ANTENNA AMPLIFIER
Service repair no - 86.50.29
Remove
1. Disconnect battery negative lead.
2. Lower or remove headlining.
See CHASSIS
AND BODY, Repair, Headlining
3. Remove electrical leads and radio antenna lead.
4. Remove two screws, remove amplifier unit.
Refit
5. Reverse removal procedure.
ELECTRICAL
35
REPAIR
MEMORY SEAT - HARNESS LAYOUT
WARNING: To prevent damage to wiring
under driver’s seat and subsequent failure,
the wiring must be installed as shown in
RR3748M
1. ECU link harness connector has retaining clip to
seat base.
2. Link harness has two cable ties to seat motor
harness, one of which is secured to seat base.
3. Main harness has P-clip securing it to seat base.
4. Sensor connector to link harness has retaining
clip to seat base.
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