L322 Range Rover System Description and Operation
WINDOWS
86-6-2
DESCRIPTION AND OPERATION
Description
General
Electric windows are installed in all four doors. The front windows are controlled by their respective door modules
integrated into the window switch packs. The rear windows are controlled by the Body Control Unit (BCU). The BCU
and the door modules communicate with each other on the P bus.
Window operating features are market dependent and include one-shot opening and closing, convenience opening
and closing, and anti-trap. Market options for window operation are set centrally in the BCU.
Window Switches
Individual window switches are installed in each of the three passenger doors. Window switches for all of the windows,
and a child lock switch to isolate the rear windows, are installed in the driver's door.
All of the window switches have two switching positions in each direction. The first switching position operates the
window in the inching mode, where the window moves until the switch is released or until it reaches the fully open or
closed position. The second switching position operates the window in the one-shot mode.
Door Module Harness Connectors C2016 and C2017 Pin Details
Door Module Harness Connectors C2057 and C2058 Pin Details
Anti-trap Sensors
An anti-trap sensor is installed along the top of each window aperture, just outside the travel path of the window glass.
Each anti-trap sensor consists of a rubber covered contact strip connected to ground and to a power supply from the
door (front windows) or BCU (rear windows). When the anti-trap sensor is pressed the resistance across the contact
strip is reduced. If a window is being closed and the door /BCU detects a drop in resistance across the associated
anti-trap sensor, it immediately (in less than 20 milliseconds) reverses the window.
Pin No.
Description
Input/Output
1
Battery power supply
Input
2
Ground
–
3
Not used
–
4
Window motor close
Output
5
Window motor open
Output
6
Not used
–
Pin No.
Description
Input/Output
1
P bus
Input/Output
2
Interior illumination
Input
3
Unlock signal from driver's door lock
Input
4
Lock signal from driver's door lock
Input
5
Not used
–
6
Lock door actuator
Output
7
Superlock door actuator
Output
8
Interior illumination for door handle and door pocket LED's
Output
9
Window anti-trap sensor
Input
10
Not used
–
11
Door open/close contacts
Input
12
Unlock door actuator
Output