Land Rover Defender 300 Tdi Electrical Library Rover Manual

							INTRODUCTION
DEFENDER 97 MY1.7
HOW TO USE THIS DOCUMENT
Fuse details
Contains information on fuse functions and values and should be used together
with the power distribution circuit diagrams to establish which systems share a
common power supply and to ensure that correct value fuses are fitted.
Earth points and headers joints
Shows a plan view of the vehicle including location of all earth points.
Supporting photographs and connector detail information appear in the
Connector section.
Description and Operation
Presented in the same order as the circuit diagrams are displayed in the
Electrical Circuit Diagram folder, each of the descriptions contains a brief
overview of the main system functions and includes operating parameters for
sensors and switches and reference to the appropriate wire colours. Always
read this section before starting work on a system so that a good
understanding of system functionality is obtained.
Connector
This section is effectively an index of every electrical connector on the vehicle,
including header joints and eyelets. A page is dedicated to each connector,
with the information presented in a standard format including display of the
connector number on each page header to ease reference. Some derivatives
within the model range may have connectors which have been allocated
identical numbers to those already used, but are located in a different position
on the vehicle. Where possible these connectors are displayed on adjacent
pages together with an alternative location statement, a qualifying statement
and an accompanying photograph.
Connector information comprises:
·Connector Number- The assigned number, prefixed C.
·Connector Name- Usually derived from the component to which the
connection is made.
·Male/Female- If applicable, identifies the gender of the connector pins
(NOT the housing) as Male or Female. Generally, connectors mating
directly to a component have Female pins. 
						

							INTRODUCTION
1.8
DEFENDER 97 MY
·Colour- If applicable, the colour of the connector housing is shown.
NATURAL is used to describe connectors with a clear/translucent plastic
finish.
·Location Statement- Used in conjunction with the photograph to
determine the location of the connector.
·Photograph- Shows the location of the subject connector. In most cases,
the photograph will indicate the amount of trim removal necessary to reveal
the connector. For convenience some photographs identify more than one
connector.
·Derivatives- Unless specified otherwise, location statements and
photographs relate to all models. Model specific connectors are identified by
a qualifying statement which follows the location statement. e.g. 300 TDi
LHD.
·Face View- An outline of the connector housing, viewed from the front,
showing pin numbers (if applicable).
·Pin-out Table- A three column table, detailing the colour and position of
each wire in the connector:
Cav Col CCT
1 GR ALL
2 B ALL
1.Cav:The connector pin (cavity) number.
2.Col:The colour of wire populating the connector pin.
3.Cct:Identifies the model or feature which uses the wire. ALL means
applicable to all vehicles in the range. 
						

							INTRODUCTION
DEFENDER 97 MY1.9
Where necessary a table listing the circuit reference numbers against a
description of the model or features which may or may not be fitted, can be
found at the beginning of the Connector section. A sample of a typical table is
shown below:
Cct Model or feature
1V8
2 300 TDi
3 Air Conditioning
5 Military
8 Hard Top
9 Station Wagon
10 EGR
12 Diesel Turbo Station Wagon
13 Lo-Line Radio
14 Diesel Turbo
15 Diesel Non Turbo
16 130
17 90 / 110
18 90 / 110 with HRW and RWW
20 Diesel Immobilisation
21 Diesel Non-immobilisation 
						

							INTRODUCTION
1.10
DEFENDER 97 MY
WIRE COLOUR CODES
The following list contains the wire colour codes used on the vehicle harnesses
and is intended to give an indication of the function or feature for which a
particular colour of wire is normally used. These guidelines do not always apply
to the wiring between components and the main harness.
Code Colour Function
BBlack Earth wire from a component to an earth tag.
GGreen Ignition fused supply from passenger compartment
fuse box: clock, instrument, indicators, electric mirrors
KPink Fused supply: central door locking
LGLight
GreenIgnition auxiliary fused supply from passenger
compartment fuse box: reverse lamps, brake lamps
NBrown Battery supply - to ignition switch from fusible link 3
and 5
OOrange Fused supply: central locking
PPurple Fused permanent supply - to interior lamps, radio
cassette, clock, anti-theft alarm, electric aerial
RRed Fused supply: sidelamps
SSlate
(grey)Fused supply: electric windows
UBlue Fused supply: headlamps, cooling fans
WWhite Ignition switched supply to passenger compartment
fuse box
YYellow Ignition switched supply to passenger compartment
fuse box 
						

							INTRODUCTION
DEFENDER 97 MY1.11
Fault diagnosis
When diagnosing an electrical fault follow the steps below:
1.Read the circuit description and study the circuit diagram appropriate to
the reported fault to ensure a good understanding of circuit operation.
2.Study the power distribution, fuse details and earth distribution diagrams
and identify other circuits which share fuses and/or earth points. Check
whether these circuits operate correctly.
3.Using the photographs contained in the Connector section, locate a point
on the circuit (approximately half way between supply and earth) which is
easily accessible.
4.Check that the pin out details of the connector are correct and that the
correct signals exist at the correct terminals.
5.Using the marker pen supplied (or other suitable non-permanent marker
pen), mark the parts of the circuit you have verified.
6.Continue to the next point on the circuit which is easiest to access and
repeat the above.
7.Continue this approach until a fault is found, rectify the fault and then
verify that the circuit operates correctly. 
						

							FUSE DETAILS
DEFENDER 97 MY2.1
INTRODUCTION
Engine Compartment Fuse Box
Link Rating Wire
ColourFunction
1 30 Amp N Lighting switch, dim dip resistor, BBUS, alarm
sounder relay, anti-theft alarm LED, fuse 21.
2 60 Amp N Ignition switch, starter relay, fuses 1 and 2.
3 60 Amp N Glow plug timer.
4 20 Amp N Heated rear screen relay, fuses 18 and 19 (non
A/C vehicles only).
4 60 Amp N Heated rear screen relay, main A/C, fuses 18 and
19. 
						

							FUSE DETAILS
2.2
DEFENDER 97 MY
Passenger Compartment Fuse Box
Fuse Rating Wire
ColourFunction
1 15 Amp N Alarm ECU, hazard warning switch.
2 20 Amp N Trailer pick-up, column switch, interior lamp unit,
clock, radio/cassette player.
3 15 Amp W Coolant temperature gauge, fuel gauge, rear
screen wash/wipe switch, hazard warning switch,
rear wiper park switch, fuel gauge relay.
4 15 Amp W Windscreen wiper motor, windscreen wiper delay
unit, windscreen wash/wipe switch.
5 15 Amp WO Blower motor.
6 7.5 Amp OU Fog guard lamp ECU.
7 5 Amp WO Radio/cassette player, air conditioning.
8 15 Amp RO Heated rear screen warning lamp, heated rear
screen element.
9 10 Amp W Cigar lighter. 
						

							FUSE DETAILS
DEFENDER 97 MY2.3
10 20 Amp PB Alarm sounder relay.
11 7.5 Amp UR RH headlamp.
12 7.5 Amp UR LH headlamp.
13 7.5 Amp UW RH headlamp.
14 7.5 Amp UW LH headlamp.
15 5 Amp R Trailer pick-up, LH front side lamp.
16 5 Amp R Trailer pick-up, RH front side lamp, instrument
pack, dim dip relay, cigar lighter, in-line resistor,
coolant temperature gauge, speedometer, fuel
gauge.
17 15 Amp W Brake pedal switch, reverse lamp switch, EGR
ECU, EGR modulator.
18 20 Amp N Air conditioning.
19 5 Amp N Air conditioning.
20 5 Amp W Alarm ECU, engine immobilisation warning lamp,
BBUS.
21 15 Amp N Alarm ECU.
22 7.5 Amp BN Diagnostic socket. 
						

							EARTH POINTS AND HEADER JOINTS
DEFENDER 97 MY3.1
Earth Points
The following illustration indicates the general position of each Earth Point on
the vehicle.
Connector No Title Location
C556 Earth eyelet Centre of engine compartment
bulkhead.
C561 Earth eyelet Centre of engine compartment
bulkhead. (A/C only)
C562 Earth eyelet Adjacent rear screen wiper motor.
C812 Earth eyelet Side of gearbox.
C813 Earth eyelet Side of gearbox.
NOTE: The earth points listed above, will not necessarily be fitted
to all versions of the vehicle. 
						

							EARTH POINTS AND HEADER JOINTS
3.2
DEFENDER 97 MY
Earth Headers
Connector No Title Location
C287 Earth header Behind centre of fascia.