2002 LAND ROVER DISCOVERY window

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Page 1493 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual BODY CONTROL UNIT
86-3-24 DESCRIPTION AND OPERATION
Heated screens
The heated screen time-outs and logical operations are controlled by the BCU.
Heated front screen
The BCU provides an output to the h

Page 1527 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ALARM SYSTEM AND HORN
86-4-18 DESCRIPTION AND OPERATION
Perimetric alarm
The perimetric alarm is used by the BCU to detect unauthorised opening of a door or hinged panel. Switches 
incorporated into t

Page 1528 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ALARM SYSTEM AND HORN
DESCRIPTION AND OPERATION 86-4-19
The volumetric alarm can be disarmed by unlocking the drivers door with the key or the handset, depending on 
system configuration.
NOTE: The

Page 1532 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ALARM SYSTEM AND HORN
DESCRIPTION AND OPERATION 86-4-23
Depending on which market the vehicle is sold, either the vehicle horn, a specific alarm sounder, or a BBUS operates 
in phase with the directio

Page 1540 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual WINDOWS
DESCRIPTION AND OPERATION 86-5-1
WINDOWS DESCRIPTION AND  OPERAT ION
Electric windows block diagram
1Passenger compartment fusebox
2BCU
3LH front window switch
4LH front window motor
5RH front

Page 1541 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual WINDOWS
86-5-2 DESCRIPTION AND OPERATION
Electric windows component layout
RHD shown, LHD similar

Page 1542 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual WINDOWS
DESCRIPTION AND OPERATION 86-5-3
1Passenger compartment fusebox
2Body Control Unit (BCU)
3LH front window switch
4LH front window motor
5RH front window switch
6RH front window motor
7Rear win

Page 1543 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual WINDOWS
86-5-4 DESCRIPTION AND OPERATION
Description
Body Control Unit (BCU)
RHD shown, LHD similar
The BCU controls all operations for the front windows. It controls the voltage and the earth paths t