mirror LAND ROVER DISCOVERY 2002 User Guide

INTERIOR TRIM COMPONENTS
REPAIRS 76-3-13
Panel - auxiliary switch
$% 76.46.38
Remove
1.Carefully remove electric exterior mirror switch
from auxiliary switch panel and disconnect
multiplug.
2. Models with headlamp levelling: Release
knob and remove nut securing headlamp
levelling switch to auxiliary switch panel.
3.Release 2 fasteners and open fascia access
panel.
4. Models with headlamp levelling: Remove
headlamp levelling switch from auxiliary switch
panel and disconnect multiplug.
5. Models with A/C: Remove 2 screws securing
in-car temperature sensor to auxiliary switch
panel.
6. Models with A/C: Disconnect multiplug from
in-car temperature sensor and remove from
auxiliary switch panel.
7.Release 2 clips securing auxiliary switch panel
to fascia and remove panel.
Refit
1.Position auxiliary switch panel to fascia and clip
into position.
2. Models with A/C: Connect multiplug to in-car
temperature sensor.
3. Models with A/C: Position in-car temperature
sensor to auxiliary switch panel and secure with
screws.
4. Models with headlamp levelling: Position
headlamp levelling switch to auxiliary switch
panel and secure with nut.5. Models with headlamp levelling: Replace
cap and connect multiplug to headlamp
levelling switch.
6.Connect multiplug to exterior mirror switch and
fit switch to auxiliary switch panel.

SCREENS
76-4-2 REPAIRS
Windscreen
$% 76.81.01
Introduction
The following equipment is required:
lCutting wire and handles.
lKent cutting knife.
lGlazing knife.
lWindscreen repair kit.
lSealant applicator gun.
lSuction cups.
lA felt covered table or stand to support glass.
WARNING: Wear protective gloves when
handling glass, solvents and primers.
WARNING: Wear suitable eye protection when
removing and refitting glass.
WARNING: If glass has splintered, protect eyes
and operate demister blower to remove glass
from heater ducts. Use a vacuum cleaner to
remove glass from fascia, carpet and seats.
Remove
1.Remove air intake plenum.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
2.If fitted, disconnect screen heater multiplugs.
3.Remove top corner trim finishers from body.
4.Remove windscreen top finisher and discard.
5.Release interior mirror from slug and tie aside.
6.Fit protection to exterior body work adjacent to
screen.
7.Cover body panels adjacent to glass.
8.Cover heater ducts with masking tape.
9.Cover interior of vehicle with protective sheet.

SCREENS
76-4-4 REPAIRS
15.Apply a continuous bead of sealant to sealant
face on screen as shown.
16.With assistance, lift screen into place and align
to screen supports and tape. Ensure top
finisher is located into correct position. Lightly
press glass to fully seat sealer.
CAUTION: Do not apply heavy pressure to
the sides of the windscreen. Lightly press
windscreen from centre outwards until
edges are to required gap. Pushing sides
into position can bend windscreen and lead
to cracking in service.
17.Remove protective covers and tape.
18.Test sealer for leaks, apply additional sealer if
necessary. If water is used, allow sealer to dry
before testing. Spray water around glass and
check for leaks. Mark any area that leaks. Dry
glass and sealer then apply additional sealer.
19.Fit interior mirror to slug.
20.If applicable, connect screen heater multiplugs.
21.Fit air intake plenum.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
CAUTION: A curing time of 6 hours is
desirable. During this time leave a window
open to ventilate the vehicle interior. If the
vehicle must be used before the curing time
has elapsed, do not drive at speed or slam
the doors with the windows closed.
CAUTION: Vehicles fitted with a passenger
airbag should not be driven for 24 hours.
Glass - body side - rear
$% 76.81.18
Introduction
The following equipment is required:
lCutting wire and handles.
lKent cutting knife.
lGlazing knife.
lWindscreen repair kit.
lSealant applicator gun.
lSuction cups.
lA felt covered table or stand to support glass.
WARNING: Wear protective gloves when
handling glass, solvents and primers.
WARNING: Wear suitable eye protection when
removing and refitting glass.
Remove
1.If fitted, disconnect coaxial cable from terminal
on glass.
2.Fit protection to exterior body work adjacent to
glass.
3.Cover body panels adjacent to glass.
4.Fit protection to internal trim adjacent to glass.
5.Cover interior of vehicle with protective sheet.

SUNROOF
DESCRIPTION AND OPERATION 76-6-11
Sunroof ECU
The sunroof ECU is located behind the head lining above the rear view mirror. Most functions of the sunroof ECU are
covered under other components.
Sunroof ECU connector pin details - C0784
Sunroof ECU connector pin details - C0785
Pin No. Description Input/Output
1 Rear sunroof microswitch Input
2 Front sunroof switch - open Input
3 Not used -
4 Sunroof microswitches - common Input
5 Not used -
6 Rear sunroof, rear switch - open Input
7 Rear sunroof, front switch - open Input
8 Front sunroof microswitch Input
Pin No. Description Input/Output
1 Front sunroof motor forward Output
2 ECU earth Input
3 Battery power supply Input
4 Rear sunroof motor backwards Output
5 Front sunroof motor backwards Output
6 Rear sunroof motor forwards Output
7 Front sunroof switch - close Input
8 Rear sunroof, front switch - close Input
9 Rear sunroof, rear switch - close Input
10 Sunroof enable Input

CORROSION PREVENTION AND SEALING
77-4-24 SEALING
Water leaks
Where water leakage is involved, always adopt a logical approach to the problem using a combination of skill,
experience and intuition. Do not reach a conclusion based only on visual evidence, such as assuming that a wet
footwell is caused by a leak emanating from the windscreen. It will often be found that the source of the leak is
elsewhere. Use of the correct procedure will increase the chance of locating a leak, however obscure it may seem.
Tools and equipment
The following tools and equipment are recommended for the purpose of detection and rectification of water leaks:
1Garden sprayer (hand-operated)
2Wet/dry vacuum cleaner
3Dry, absorbent cloths
4Battery torch
5Small mirror
6Weatherstrip locating tool
7Trim panel remover
8Small wooden or plastic wedges
9Dry compressed air supply
10Hot air blower
11Sealer applicators
12Ultrasonic leak detector
During leak detection, the vehicle should be considered in three basic sections:
lThe front interior space;
lThe rear passenger space;
lThe loadspace or boot.
Testing
From the information supplied by the customer it should be possible for the bodyshop operator to locate the starting
point from which the leak may be detected. After the area of the leak has been identified, find the actual point of entry
into the vehicle.
A simple and effective means in the first instance is an ordinary garden spray with provision for pressure and jet
adjustment, which will allow water to be directed in a jet or turned into a fine spray. Use a mirror and a battery-powered
torch (NOT a mains voltage inspection lamp) to see into dark corners.
The sequence of testing is particularly important. Start at the lowest point and work slowly upwards, to avoid testing
in one area while masking the leak in another. For example, if testing started at the level of the windscreen, any water
cascading into the plenum chamber could leak through a bulkhead grommet and into the footwells. Even at this point
it could still be wrongly assumed that the windscreen seal was at fault.
Another important part of identifying a water leak is by visual examination of door aperture seals, grommets and
weatherstrips for damage, deterioration or misalignment, together with the fit of the door itself against the seals.
Sealing
When the point of the leak has been detected, it will then be necessary to rectify it using the following procedure:
1Renew all door aperture seals and weatherstrips which have suffered damage, misalignment or deterioration
2Check all body seals to ensure that they are correctly located on their mounting flanges/faces using a lipping
tool if necessary
3Dry out body seams to be treated using compressed air and/or a hot air blower as necessary
4Apply sealant on the outside of the joint wherever possible to ensure the exclusion of water
5When rectifying leaks between a screen glass and it's weatherstrip (or in the case of direct glazing, between the
glass and bodywork), avoid removing the glass if possible. Apply the approved material at the appropriate
location (i.e. glass to weatherstrip or glass to body)

HARNESSES
86-7-2 REPAIRS
5.Release and disconnect 4 multiplugs from LH
lower 'A' post.
6.Release clip and disconnect rear washer pipe
from LH lower 'A' post.
7.Release harness from behind bonnet release
cable.
8.Release harness from 4 retainers in LH upper
'A' post and collect protective sleeves. 9.Release 4 clips securing harness to centre of
roof.
10.Disconnect multiplug from ACE accelerometer.
11.Disconnect multiplug from interior mirror.
12.Feed harness through roof to upper 'A' post.
13.Release 3 retainers securing harness to RH
roof panel.

HARNESSES
86-7-8 REPAIRS
35.Secure harness to LH side of body with cable
tie clips and retainers.
36.Connect and secure multiplugs to lower LH 'A'
post.
37.Feed harness through roof to centre.
38.Secure harness behind bonnet release cable.
39.Connect rear washer pipe at lower 'A' post and
secure with clip.
40.Secure harness to roof with clips.
41.Connect multiplug to interior mirror, ARC
accelerometer.
42.Position sound deadening panels and secure
with clips.
43.Fit headlining.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Headlining.
44.Fit fascia panel.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Fascia.
Harness - engine - V8
$% 86.70.17
Remove
1.Remove upper inlet manifold.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
2.Disconnect injector multiplugs, release harness
from fuel rail.
3.Disconnect ignition coil multiplugs.

INSTRUMENTS
88-42 DESCRIPTION AND OPERATION
Interior rear view mirror with compass
(where fitted)
1Cover
2Electrical connector
3Mounting bracket
4Light sensor
5Compass LED display
6Compass calibration switch
7Compass printed circuit board
Certain vehicles have an interior rear view mirror that features an automatic photochromatic dimming function and an
electronic compass with LED display.
The compass mirror is a self-contained unit and does not interface with any other vehicle system or electronic control
unit. The mirror is fixed to a metal bracket attached to the windscreen.
A three pin connector provides the electrical connection to the mirror's internal circuit board. Pin-1 of the connector
provides the 12V power supply to the board via the auxiliary relay located in the engine compartment fusebox. When
the ignition switch is turned to the 'II' position, a 12V supply is provided to energise the coil of the auxiliary relay via
fuse 26 in the passenger compartment fusebox. The auxiliary relay's contact supply voltage is provided from the
vehicle battery through fusible links 1 & 7. When the relay's contacts close, a 12V supply is fed to the compass mirror
circuit board via fuse 15 in the passenger compartment fusebox. This is the supply voltage feed for the mirror's internal
compass.
Pin-2 of the electrical connector provides the path to earth.
Pin-3 of the electrical connector is a 12V ignition switched supply voltage (position 'II' of the ignition switch). The
supply voltage is provided to the mirror's circuit board via fuse 25 in the passenger compartment fusebox, and the
reverse lamp switch (normally closed) for vehicles with manual transmission or the starter inhibitor / reverse light
switch (normally closed) for vehicles with automatic transmission. This is the supply voltage feed for the mirror's
photochromatic dimming function.
M88 0297
3
2
7
616
45

INSTRUMENTS
DESCRIPTION AND OPERATION 88-43
Compass
The mirror's compass display is activated when the ignition switch is turned to position 'II'. If the compass has been
previously calibrated, the current direction of the vehicle will be shown in the LED display at the upper RH side of the
mirror's reflective surface. The display is able to indicate one of eight compass points (i.e. N, NE, E, SE, S, SW, W or
NW).
The compass mirror circuit board contains a microchip which is able to determine changes in vehicle direction due to
the changes in the earth's magnetic field. The circuit board is located in the stem of the mirror so that it follows the
changes in the vehicles direction and is not affected by adjustment of the mirror itself.
Because of changes in the lines of magnetic influence, the compass is set for operation in one of fifteen different zones
depending on the current location of the vehicle. If the vehicle is to be driven in a different zone, the compass will have
to be reset for operation in that zone. To determine the correct zone for a particular location on the planet, refer
to the maps provided in the Owner's Handbook. The mirror's default setting is zone 8 which is suitable for central
European countries (Germany, Austria, Italy etc.).
The compass should be set to the correct zone using the following procedure:
1Switch the ignition to position 'II'.
aIf the compass displays one of the eight compass point directions, proceed to step '3'.
bIf the compass displays 'C' then proceed to step '2'.
cIf the display does not show either of the above, then the calibration button on the underside of the mirror
should be pressed and held for approximately 6 seconds, using a small probe (e.g. paper clip or ballpoint
pen). The compass should now enter the set mode and 'C' should be shown in the display.
2To calibrate the compass, the vehicle must be driven slowly (5 mph (8 km/h) or less) in a circle until the display
shows a direction (usually 1 or 2 revolutions). The mirror can calibrate itself during normal driving, but this will
take considerably longer.
3Set the compass to the relevant zone of magnetic influence by pressing the calibration button on the underside
of the mirror for approximately 3 seconds, using a small probe, until a number is shown in the display. If the zone
is being entered for the first time, the default zone setting '8' should be displayed. If the zone is being reset from
a previous entry, the previous zone setting number will be displayed.
The calibration button should now be pressed and released with single presses, using a small probe, until the
desired zone number appears in the display.
After approximately 10 seconds, the compass display should return correctly set to the required zone.
Note the degree of magnetic variation from one zone to another is only very slight. Recalibration of the compass is
not normally necessary unless several zone changes are undertaken.
Automatic dimming
The mirror's automatic dimming function operates when the ignition switch is turned to the 'II' position.
A light sensor is contained at the upper centre of the mirror which detects the intensity of light from the headlights of
following vehicles in dark or low light conditions. When the light intensity is sufficiently high, the mirror automatically
adjusts the brightness of the reflected light by photochromatically changing the mirror's reflective properties and so
preventing glare affecting the driver.
When reverse gear is selected, the power supply for the mirror's photochromatic function is opened so that the mirror
defaults to its normal reflective properties while the reversing operation is in progress.
Another light sensor is located on the rear of the mirror so that the unit can detect the difference between strong
ambient light and that attributable to following vehicle headlights. To check operation of the light dimming function of
the mirror, use the following procedure:
1Turn ignition switch to position 'II', and ensure reverse gear is not selected.
2Cover the sensor on the back of the mirror.
3Shine a bright light on the front (reflective side) of the mirror; the mirror should darken.