oil LAND ROVER DEFENDER 1999 Workshop Manual

ELECTRICAL
25
DESCRIPTION AND OPERATION Electric window lift is a new feature for 02MY. The electric windows are only available on the front driver and
passenger doors. Rear passenger doors retain the manual window lift regulator mechanism.
The window lift system comprises a window motor in each front door, two window lift switches located in the fascia
switch panel and a relay, located adjacent to the passenger compartment fusebox. The windows are only
operative when the ignition switch is in position II.
Each window lift motor is located in the door, behind the trim casing. The motor and regulator form a handed
assembly and are not available separately as serviceable items.
The window lift relay receives a permanent battery feed via fusible links 1 and 3 in the under seat fuse box. The
relay coil has one side connected to earth with the other side receiving a feed from the ignition switch position II.
When the ignition is in position II, the relay is energised and battery voltage is supplied to each of the window lift
switches. On vehicles with heated seats, the relay is shared with the heated seat circuit.
Each switch has two wires to its applicable motor. When the switch is operated in either the up or down position,
one wire is supplied with a feed and the other is connected to earth as applicable for the selection made.
Each motor has thermal cut-out protection. If the window reaches the top or bottom limit of its travel or an object
obstructs the window, the thermal cut-out will sense the increased load on the motor and cut the power supply to
the motor brush contacts.
The cut-out time is between 3.5 to 5.0 seconds, with a time to restart of between 1 to 10 seconds. These figures
are based on an ambient temperature of 20°C (68°F) and a voltage of 13.5V.
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86ELECTRICAL
4
REPAIR Refit
12.Clean mating face of alternator and vacuum
pump.
13.Fit vacuum pump to alternator and tighten bolts
to10 Nm (7 lbf.ft).
14.Position alternator and connect multiplug.
15.Connect vacuum hose and oil drain hose to
vacuum pump and secure clip.
16.With assistance align alternator to mounting
bracket and fit but do not tighten bolt.
17.Fit bolt securing support stay to alternator and
tighten to25 Nm (18 lbf.ft).
18.Tighten alternator to mounting bracket bolt to45
Nm (33 lbf.ft).
19.Using new’O’ring, fit and tighten lubrication pipe
union to10 Nm (8 lbf.ft).
20.Connect lead to alternator and tighten nut to6
Nm (4.4 lbf.ft).
21.Fit auxilliary drive belt tensioner and tighten bolt
to50 Nm (37 lbf.ft).
22.Fit auxilliary drive belt.See this Section.HORN - LH
Service repair no - 86.30.10
Remove
1.Remove LH headlamp.See this Section.
2.Disconnect horn multiplug.
3.Remove nut and remove horn from mounting
bracket.
Refit
4.Position horn, tighten securing and connect
multiplug.
5.Fit LH headlamp.See this Section.
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