Land Rover Discovery: Window Diagnostics - Pinpoint
Tests
NOTE:
The door window regulator motor can be removed from the
regulator. Install a new door window regulator motor only not the
complete assembly for this concern.
ANTI - RATTLE RETAINING CLIP FITMENT
- Remove the door trim panel as required. REFER to: Front Door Trim Panel (501-05 Interior Trim and
Ornamentation, Removal and Installation).
/
REFER to: Rear Door Trim Panel (501-05 Interior Trim and
Ornamentation, Removal and Installation).
- Ensure correct fit of retaining clip to window regulator cable.
- Ensure correct fit of retaining clip to door inner closing panel.
- Ensure all door window regulator fixings are secured to the correct
tightening torque.
REFER to: Front Door Window Regulator and Motor (501-11 Glass,
Frames and Mechanisms, Removal and Installation).
/
REFER to: Rear Door Window Regulator and Motor (501-11 Glass,
Frames and Mechanisms, Removal and Installation).
DTC INDEX
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this
vehicle, please refer to Section 100-00. REFER to: (100-00 General
Information)
Diagnostic Trouble Code Index - DTC: Driver / Passenger / Rear Left / Rear
Right Door Module (DDM/PDM/RLDM/RRDM) (Description and Operation),
Diagnostic Trouble Code Index - DTC: Central Junction Box (CJB)
(Description and Operation).
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NOTES:
Make sure that the vehicle battery is fully charged before carrying
out this procedure.
After the battery has been disconnected or a new window regulator
and motor or door module has been
PRINCIPLES OF OPERATION
For a detailed description of the Glass, Frames and Mechanisms, refer to
the relevant Description and Operation section in the workshop manual.
REFER to: Glass, Frames and Mec
SPECIAL TOOL(S)
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Release the door window glass.
Special Tool(s): 501-114
INSTALLATION
To install, reverse the re
SEE MORE:
Anti-lock Brake System (ABS) control module
Hydraulic Control Unit (HCU)
The Anti-lock Brake System (ABS) control module controls the brake
functions by operating the Hydraulic Control Unit (HCU) to modulate
hydraulic pressure to the individual wheel brakes.
The ABS control module is attached
Galvanic corrosion is the cross-contamination of dissimilar metals, in this
case aluminium and steel. Avoidance of galvanic corrosion is an important
issue to be considered in the repair of aluminium bodied vehicles.
Precautions to prevent the contamination of exposed bare aluminium
surfaces should