1999 LAND ROVER DISCOVERY high beam
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CONTENTS
26 CONTENTS
LIGHTING.................................................................................................. 86-2-1
ADJUSTMENTS
Headlamps beam alignment - up to 03MY ..................................................................................... 86-2-1
Headlamps beam alignment - from 03MY ...................................................................................... 86-2-2
REPAIRS
Lamp - front repeater - up to 03MY ................................................................................................ 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) .................................................................................................................. 86-3-35
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 ........................................................................................................................................ 86-4-17
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
Page 1484 of 1529
INSTRUMENTS
DESCRIPTION AND OPERATION 88-1
INS TRUMENTS DESCRIPTION AND OPERAT ION
Instrument pack
1Hill descent control information warning lamp
2Overspeed warning lamp
3Brake system warning lamp
4Malfunction Indicator Lamp (MIL)
5Tachometer
6Direction indicator warning lamp
7Main beam warning lamp
8Direction indicator warning lamp
9Speedometer
10SRS warning lamp
11Off road mode warning lamp
12Glow plug warning lamp
13Trailer warning lamp
14Water in fuel filter warning lamp
15Transmission high temperature warning lamp
16Seat belt warning lamp17Fuel tank level gauge
18Low fuel level warning lamp
19LCD odometer/trip meter
20Anti-theft status warning lamp
21ABS warning lamp
22Gearbox manual/sport mode warning lamp
23Alternator charge warning lamp
24ACE warning lamp
25Oil pressure warning lamp
26SLS warning lamp
27Hill descent control warning lamp
28Engine coolant temperature gauge
29High coolant temperature warning lamp
30Traction control warning lamp
31Differential lock warning lamp
32Transfer box neutral warning lamp
Page 1488 of 1529
INSTRUMENTS
DESCRIPTION AND OPERATION 88-5
Description
General
The instrument pack consists of four analogue dials, four warning lamp packs and a Liquid Crystal Display (LCD)
odometer.
The four dials are used to indicate:
lRoad speed.
lEngine speed.
lFuel tank level.
lEngine coolant temperature.
The dials are driven by a microprocessor from information received from the serial communication link. Information
input is received as either:
lDigital.
lAnalogue.
lPulse train.
lPulse Width Modulation (PWM).
The LCD provides information for:
lOdometer.
lTrip distance.
lSelected gear (on vehicles fitted with an automatic gearbox).
A trip reset button is provided to zero the trip display, this button also allows the selection of "miles" or "kilometres"
for the display. A photocell controls the illumination of the LCD, maintaining contrast of the display during ambient light
changes.
Within the four warning lamp packs there are 28 lamps. A long life bulb illuminates the high beam warning lamp and
the rest of the warning lamps are illuminated by Light Emitting Diodes (LED's). All warning lamp legends are invisible
until lit. When lit the symbols are illuminated on a black background.
The warning lamps illuminate in one of four colours. The colour indicates the level of importance to the driver, as
follows:
lRed = warning.
lAmber = caution.
lGreen = system operative.
lBlue = main beam operative.
The first warning lamp pack is located in the top left-hand side of the instrument pack and contains the following
warning lamps:
lTraction control warning lamp.
lTransfer box in neutral warning lamp.
lDifferential lock warning lamp
lOverspeed warning lamp (activated for gulf market only).
lBrake system warning lamp.
lHill Descent Control (HDC) information warning lamp.
lMalfunction Indicator Lamp (MIL)/ SERVICE ENGINE SOON warning lamp.
The second warning lamp pack is located in the centre of the instrument pack and contains the following warning
lamps:
lDirection indicator warning lamps.
lHigh beam warning lamp.
lAnti-lock brake system warning lamp.