2002 LAND ROVER DISCOVERY Workshop Manual

CONTENTS
22 CONTENTS
Condenser .................................................................................................................................... 82-33
Receiver drier and dual pressure switch......................................................................................... 82-36
ECU - air temperature control ......................................................................................................... 82-37
Sensor - ambient air temperature ................................................................................................ 82-38
Sensor - solar light ........................................................................................................................ 82-38
Sensor - air temperature ............................................................................................................. 82-39
Evaporator, evaporator thermistor and thermal expansion valve (TXV) ........................................ 82-40
Expansion valve - (TXV) - rear ....................................................................................................... 82-42
Evaporator - rear............................................................................................................................. 82-43
Evaporator and motor assembly - rear ........................................................................................... 82-44
Blower motor assembly - rear ......................................................................................................... 82-46
Resistor - blower motor ................................................................................................................. 82-46
Duct - centre - rear.......................................................................................................................... 82-47
WIPERS AND WASHERS ........................................................................ 84-1
DESCRIPTION AND OPERATION
Wipers and washers component layout .......................................................................................... 84-1
Front wiper components ................................................................................................................. 84-2
Rear wiper components .................................................................................................................. 84-3
Washer components ....................................................................................................................... 84-4
Wipers and washers block diagram ................................................................................................ 84-6
Description ...................................................................................................................................... 84-8
Operation ........................................................................................................................................ 84-16
REPAIRS
Reservoir - washer - up to 03MY .................................................................................................... 84-19
Reservoir - washer - from 03MY ..................................................................................................... 84-20
Jet - washer - windscreen ............................................................................................................... 84-21
Pump - washer - screen and headlamp ....................................................................................... 84-21
Motor and linkage - wiper - windscreen .......................................................................................... 84-22
Switch - wiper and washer - windscreen ........................................................................................ 84-23
Jet - washer - headlamp ................................................................................................................ 84-24
Jet - washer - rear screen ............................................................................................................ 84-25
Switch - rear wash .......................................................................................................................... 84-25
Motor - wiper - rear screen ............................................................................................................ 84-26
Switch - wiper - rear - up to 03MY .................................................................................................. 84-27
Switch - wiper - rear - from 03MY ................................................................................................... 84-27
CHARGING AND STARTING ................................................................... 86-1-1
REPAIRS
Alternator - diesel .......................................................................................................................... 86-1-1
Alternator - V8................................................................................................................................. 86-1-2
Belt - auxiliary drive ........................................................................................................................ 86-1-3
Battery ........................................................................................................................................... 86-1-4
Battery carrier ................................................................................................................................ 86-1-4
Starter motor - diesel ...................................................................................................................... 86-1-5
Starter motor - V8 ........................................................................................................................... 86-1-6
LIGHTING.................................................................................................. 86-2-1
ADJUSTMENTS
Headlamps beam alignment - up to 03MY ..................................................................................... 86-2-1

CONTENTS
CONTENTS 23
Headlamps beam alignment - from 03MY ...................................................................................... 86-2-2
REPAIRS
Lamp - front repeater .................................................................................................................... 86-2-3
Headlamp - up to 03MY .................................................................................................................. 86-2-4
Headlamp - from 03MY .................................................................................................................. 86-2-5
Lamp - tail ..................................................................................................................................... 86-2-6
Lamp - front fog up to 03MY ........................................................................................................... 86-2-6
Lamp - front fog from 03MY ............................................................................................................ 86-2-7
Housing - number plate lamp ......................................................................................................... 86-2-8
Motor - headlamp levelling ............................................................................................................ 86-2-9
Lamp - stop - centre high mounted (CHMSL) .............................................................................. 86-2-10
Lamp - tail/flasher - bumper ............................................................................................................ 86-2-10
Lamp - interior - front .................................................................................................................... 86-2-11
Lamp - interior - rear ..................................................................................................................... 86-2-11
Rheostat - panel lights dimmer ...................................................................................................... 86-2-12
Switch - hazard warning ................................................................................................................. 86-2-13
Switch - indicator and exterior lighting - combined.......................................................................... 86-2-13
Socket - accessory ......................................................................................................................... 86-2-14
Switch - front/rear fog lamps ......................................................................................................... 86-2-14
BODY CONTROL UNIT ............................................................................ 86-3-1
DESCRIPTION AND OPERATION
Description ...................................................................................................................................... 86-3-1
Operation ........................................................................................................................................ 86-3-19
REPAIRS
Body control unit (BCU) .................................................................................................................. 86-3-39
ALARM SYSTEM AND HORN ................................................................. 86-4-1
DESCRIPTION AND OPERATION
Alarm system component layout ..................................................................................................... 86-4-2
Alarm system block diagram ........................................................................................................... 86-4-4
Description ...................................................................................................................................... 86-4-5
Operation ........................................................................................................................................ 86-4-16
REPAIR
Switch - central door locking ......................................................................................................... 86-4-25
Switches - horn ............................................................................................................................. 86-4-25
Vehicle horn .................................................................................................................................. 86-4-26
Sounder - alarm ............................................................................................................................ 86-4-26
Sounder - battery backed-up (BBUS) ............................................................................................. 86-4-27
Switch - bonnet ............................................................................................................................. 86-4-27
Receiver - alarm system - models with sunroof ............................................................................. 86-4-28
Receiver - alarm system - models without sunroof ......................................................................... 86-4-28
Coil - passive immobilisation ......................................................................................................... 86-4-29
WINDOWS ................................................................................................ 86-5-1
DESCRIPTION AND OPERATION

CONTENTS
24 CONTENTS
Electric windows block diagram ...................................................................................................... 86-5-1
Electric windows component layout ................................................................................................ 86-5-2
Description ...................................................................................................................................... 86-5-4
Operation ....................................................................................................................................... 86-5-11
REPAIRS
Switch - rear door ......................................................................................................................... 86-5-13
Switch - console ............................................................................................................................ 86-5-13
Switch - heated rear screen ............................................................................................................ 86-5-14
IN CAR ENTERTAINMENT....................................................................... 86-6-1
DESCRIPTION AND OPERATION
ICE System Component layout....................................................................................................... 86-6-1
Base and mid line ICE system control diagram .............................................................................. 86-6-2
High line ICE system control diagram............................................................................................. 86-6-3
Description ...................................................................................................................................... 86-6-4
REPAIRS
Radio cassette player ..................................................................................................................... 86-6-13
Speaker - low/full range - front door ............................................................................................. 86-6-14
Speaker - low range - rear door ..................................................................................................... 86-6-14
Switches - remote control - ICE .................................................................................................... 86-6-15
Amplifier - aerial .............................................................................................................................. 86-6-15
Speaker - mid range - front door ................................................................................................... 86-6-16
Speaker - high range - rear door .................................................................................................. 86-6-16
Amplifier - power ........................................................................................................................... 86-6-17
Speaker - tail door ........................................................................................................................ 86-6-18
CD autochanger ............................................................................................................................ 86-6-18
HARNESSES ............................................................................................ 86-7-1
REPAIRS
Harness - injectors - diesel ............................................................................................................ 86-7-1
Harness - body ............................................................................................................................. 86-7-1
Harness - engine - V8 ..................................................................................................................... 86-7-8
Harness - engine - diesel ................................................................................................................ 86-7-13
Harness - main ............................................................................................................................. 86-7-16
DRIVING AIDS .......................................................................................... 86-8-1
DESCRIPTION AND OPERATION
Park Distance Control – Component Location................................................................................ 86-8-1
Park Distance Control – Control Diagram....................................................................................... 86-8-2
Description ...................................................................................................................................... 86-8-4
Operation ........................................................................................................................................ 86-8-10
REPAIRS
Control unit (ECU) - parking aid...................................................................................................... 86-8-13
Sounder - parking aid rear ............................................................................................................. 86-8-14
Sensor - parking aid - rear - inner ................................................................................................... 86-8-15
Sensor - parking aid - rear - outer .................................................................................................. 86-8-16

CONTENTS
CONTENTS 25
NAVIGATION SYSTEM ............................................................................ 87-1
DESCRIPTION AND OPERATION
Navigation System Component Location ........................................................................................ 87-1
Description ...................................................................................................................................... 87-2
REPAIRS
Interface electronic control unit (ECU) - remote control ................................................................. 87-11
Display unit .................................................................................................................................... 87-12
INSTRUMENTS......................................................................................... 88-1
DESCRIPTION AND OPERATION
Instrument pack .............................................................................................................................. 88-1
Instrument component location - Engine compartment / underneath vehicle ................................. 88-2
Instrument component location - Passenger compartment............................................................. 88-3
Instrument block diagram................................................................................................................ 88-4
Description ...................................................................................................................................... 88-5
Interior rear view mirror with compass (where fitted) ..................................................................... 88-42
REPAIRS
Clock ............................................................................................................................................... 88-45
Instrument pack ............................................................................................................................ 88-45

CONTENTS
26 CONTENTS

INTRODUCTION
01-1
INTRODUCTION
How To Use This Manual
General
To assist in the use of this Manual, it is divided into
sections and sub-sections. The section title is given
at the top of each page and the relevant sub-section
is given at the bottom.
There is a single contents section at the front of the
Manual, which is divided by section and sub-section.
Each section is numbered from page 1.
The individual items comprising repair operations are
to be followed in the sequence in which they appear.
Items numbers in the illustration are referred to in the
text.
Adjustment and Repair operations include reference
to Service tool numbers and the associated
illustration depicts the tool in use. Adjustment and
repair operations also include reference to wear
limits, relevant data, torque figures, and specialist
information and useful assembly details. Each
adjustment or repair operation is given its Service
Repair Operation number.
WARNINGS, CAUTIONS and NOTES have the
following meanings:
WARNING: Procedures which must be followed
precisely to avoid the possibility of injury.
CAUTION: Calls attention to procedures which
must be followed to avoid damage to
components.
NOTE: Gives helpful information.
References
References to the LH or RH side given in this Manual
are made when viewing the vehicle from the rear.
With the engine and gearbox assembly removed, the
crankshaft pulley end of the engine is referred to as
the front.
Operations covered in this Manual do not include
reference to testing the vehicle after repair. It is
essential that work is inspected and tested after
completion and if necessary a road test of the vehicle
is carried out particularly where safety related items
are concerned.
Dimensions
The dimensions quoted are to design engineering
specification with Service limits where applicable.
Repairs and Replacements
When replacement parts are required it is essential
that only Land Rover recommended parts are used.
Attention is particularly drawn to the following points
concerning repairs and the fitting of replacement
parts and accessories.
Safety features and corrosion prevention treatments
embodied in the vehicle may be impaired if other
than Land Rover recommended parts are fitted. In
certain territories, legislation prohibits the fitting of
parts not to the manufacturer's specification. Torque
wrench setting figures given in this Manual must be
used. Locking devices, where specified, must be
fitted. If the efficiency of a locking device is impaired
during removal it must be renewed.
Owners purchasing accessories while travelling
abroad should ensure that the accessory and its
fitted location on the car conform to legal
requirements.
The Terms of the vehicle Warranty may be
invalidated by the fitting of parts other than Land
Rover recommended parts.
All Land Rover recommended parts have the full
backing of the vehicle Warranty.
Land Rover Dealers are obliged to supply only Land
Rover recommended parts.

INTRODUCTION
01-2
Specifications
Land Rover are constantly seeking to improve the
specification, design and production of their vehicles
and alterations take place accordingly. While every
effort has been made to ensure the accuracy of this
Manual, it should not be regarded as an infallible
guide to current specifications of any particular
vehicle.
This Manual does not constitute an offer for sale of
any particular vehicle. Land Rover Dealers are not
agents of Land Rover and have no authority to bind
the manufacturer by any expressed or implied
undertaking or representation.

INTRODUCTION
01-3
Abbreviations and Symbols
A Amperes
AAP Ambient Air Pressure
AAT Ambient Air Temperature
ABDC After Bottom Dead Centre
ABS Anti-Lock Brake System
ABS / TC Anti-lock Brake System / Traction
Control
ac Alternating current
A/C Air Conditioning
ACE Active Cornering Enhancement
ACEA Association of Constructors of
European Automobiles
AFR Air Fuel Ratio
AP Ambient Pressure
ASC Anti-shunt Control
ATC Air Temperature Control
ATDC After Top Dead Centre
AUX Auxiliary
AVC Automatic Volume Control
BBDC Before Bottom Dead Centre
BBUS Battery Backed Up Sounder
BCU Body Control Unit
BDC Bottom Dead Centre
bhp Brake Horse Power
BP Boost Pressure
BPP Brake Pedal Position
BS British Standard
BTDC Before Top Dead Centre
BWD Backward
C Celsius
CAN Controller Area Network
CD Compact Disc
CDC Centre Differential Control
CDL Central Door Locking
CD - ROM Compact Disc - Read Only
Memory
CFC Chlorofluorocarbon
CHMSL Centre High Mounted Stop Lamp
CKP Crankshaft Position
CLV Calculated Load Value
cm Centimetre
cm
2Square centimetre
cm3Cubic centimetre
CMP Camshaft Position
CPP Clutch Pedal Position
CO Carbon Monoxide
CO
2Carbon Dioxide
COB Clear Over Base
CR Common Rail
CVS Canister Vent Solenoid
dB Decibels
DDM Driver's Door Module
deg. Degree, angle or temperature
DI Direct Injection
dia. DiameterDIN Deutsche Industrie Normen
(German Industrial Standards)
dc Direct current
DCV Directional Control Valve
DOHC Double Overhead Camshaft
DSP Digital Signal Processing
DTI Dial Test Indicator
DMF Dual Mass Flywheel
DVD Digital Versatile Disc
EACV Electronic Air Control Valve
EAT Electronic Automatic
Transmission
EBD Electronic Brake pressure
Distribution
ECD European Community Directive
ECM Engine Control Module
ECT Engine Coolant Temperature
ECU Electronic Control Unit
EDC Electronic Diesel Control
EEPROM Electronic Erasable
Programmable Read Only
Memory
EGR Exhaust Gas Recirculation
EKA Emergency Key Access
ELR Emergency Locking Retractor
EN European Norm
EOBD European On Board Diagnostics
EON Enhanced Other Network
ERL Electrical Reference Library
ETC Electronic Traction Control
EUI Electronic Unit Injector
EVAP Evaporative Emission
EVR Electronic Vacuum Regulator
F Fahrenheit
ft. Feet
FBH Fuel Burning Heater
FET Field Effect Transistor
FIP Fuel Injection Pump
FTC Fast Throttle Control
FWD Forward
> Greater than
g Gramme or Gravity
gal. Gallons
GMT Greenwich Mean Time
GPS Global Positioning System
hHour
hc High compression
HC Hydro Carbons
HDC Hill Descent Control
HDOP Height Dilation Of Precision
HDPE High Density Polyethylene
HFS Heated Front Screen
Hg Mercury
HO
2S Heated Oxygen Sensor
HMW High Molecular Weight