1999 LAND ROVER DEFENDER fuse

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Page 631 of 667

LAND ROVER DEFENDER 1999 Workshop Manual 86ELECTRICAL
22
DESCRIPTION AND OPERATION HEATED FRONT SEATS - FROM 02MY
1.LH and RH seat heater switches
2.Seat heater cushion and squab elements
3.Seat heat/Window lift relay (passenger compartment

Page 632 of 667

LAND ROVER DEFENDER 1999 Workshop Manual ELECTRICAL
23
DESCRIPTION AND OPERATION Heated front seats are a new feature for 2002MY and are available as part of a cold climate pack on Td5 engine
variants only. The heated seats system comprises,

ELECTRICAL
23
DESCRIPTION AND OPERATION Heated front seats are a new feature for 2002MY and are available as part of a cold climate pack on Td5 engine
variants only. The heated seats system comprises, two latching switches, a seat relay and heater elements.
The latching switches are located in the fascia. Each switch individually controls its related seat heater elements.
Each switch contains a tell tale lamp to indicate when the seat heaters are active. There is no timer function for the
seat heater operation and the seat heaters will remain active for as long as the switch is latched in and the ignition
is in position II.
The seat heater relay is located in the passenger compartment fuse box and shares its supply and operation with
the front window lift system. The relay receives a permanent battery voltage supply via fusible links 1 and 3 in the
under seat fuse box and fuse 28 in the satellite fuse box. The relay coil is connected to the ignition switch via fuse
7 in the passenger compartment fuse box and an earth point. When the ignition switch is moved to position II, the
relay coil is energised and the contacts close. Power is supplied from the relay to each of the seat heater
switches.
The heater elements are fitted in the seat cushion and squab on the drivers and passenger front seats and are
wired in series. The wiring looms for the elements is long enough to allow the seat squab to be lifted for access to
the under seat fuse box or the storage bin/battery without straining the wiring. The centre seat, if fitted, does not
have heater elements.
The cushion element receives the feed from the switch and contains a thermostatically controlled switch. When
the element temperature reaches 37±3°C (98±3°F) the thermostat cuts the supply to the cushion and squab
elements for that seat. As the temperature of the element falls to 28±3°C (82±3°F), the thermostat will close the
switch contacts allowing power to flow to both elements causing them to heat up again. In this way the thermostat
maintains the cushion and squab element temperatures between the figures stated.
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Page 634 of 667

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

Page 635 of 667

LAND ROVER DEFENDER 1999 Workshop Manual 86ELECTRICAL
26
DESCRIPTION AND OPERATION PASSENGER COMPARTMENT FUSE BOX
FROM 02MY
The increase in electrical systems on Defender 02MY vehicles has necessitated an increase in the number of
fuses requ

Page 636 of 667

LAND ROVER DEFENDER 1999 Workshop Manual ELECTRICAL
27
DESCRIPTION AND OPERATION UNDER SEAT FUSE BOX
FROM 02MY
1.A/C Relay (if fitted)
2.A/C relay (if fitted)
3.Glow plug relay
4.Main relay
5.Fuel pump relay
6.ABS Return pump relay
7.Fuse 7

Page 658 of 667

LAND ROVER DEFENDER 1999 Workshop Manual ELECTRICAL
19
REPAIR RELAY - STARTER - FROM 02MY
Service repair no - 86.60.10
Remove
1.Remove 2 screws securing fuse cover and
remove cover.
2.Identify and remove relay.
Refit
3.Fit relay.
4.Fit fuse

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