Land Rover Discovery: Driver Door Module / Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Driver Door Module, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Handles, Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches
and Entry Systems, Description and Operation).
INSPECTION AND VERIFICATION
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT acceptable.
Substitution of control modules does not guarantee confirmation of a
fault, and may also cause additional faults in the vehicle being tested
and/or the donor vehicle.
NOTES:
- If a control module or a component is suspect and the vehicle
remains under manufacturer warranty, refer to the Warranty Policy
and Procedures manual, or determine if any prior approval
programme is in operation, prior to the installation of a new
module/component.
- When performing voltage or resistance tests, always use a digital
multimeter accurate to three decimal places, and with an up-todate
calibration certificate. When testing resistance always take the
resistance of the digital multimeter leads into account.
- Check and rectify basic faults before beginning diagnostic routines
involving pinpoint tests.
- Verify the customer concern
- Visually inspect for obvious signs of damage and system integrity
Visual Inspection
- If an obvious cause for an observed or reported concern is found,
correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to
the
Symptom Chart, alternatively check for Diagnostic Trouble Codes
(DTCs) and refer to the DTC Index
- Check DDW for open campaigns. Refer to the corresponding bulletins
and SSMs which may be valid for the specific customer complaint and
carry out the recommendations as required
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: Diagnostic Trouble Code
Index - DTC: Driver / Passenger / Rear Left / Rear Right Door Module
(DDM/PDM/RLDM/RRDM) (100-00 General Information, Description and
Operation).
Driver seat module (G1791770) removal and installation
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Torque: 40 Nm
Torque: 40 Nm
Reposition the front seat to the central position
Disconnect the battery ground cable.
Refer to: Specifications (414-01, Specifications).
WARNING:
To avoid accidental deployment, the restraints control
module backup power supply must be depleted. Wait at
least two minutes after disconnecting the battery ground
cable(s) before commencing any repair or adjustment to the
supplemental restraint system (SRS), or any component(s)
adjacent to the SRS sensors. Failure to follow these
instructions may result in personal injury.
Make the SRS system safe.
Refer to: Standard Workshop Practices (100-00, Description and
Operation).
Torque: 6 Nm
INSTALLATION
- To install, reverse the removal procedure.
- If a new component has been installed, configure using Land Rover
approved diagnostic equipment.
READ NEXT:
REMOVAL
Disconnect the battery ground cable.
Refer to: Specifications (414-01 Battery, Mounting and Cables,
Specifications).
Remove the loadspace trim panel.
Refer to: Loadspace Trim Panel (50
PRINCIPLES OF OPERATION
For a detailed description of the Navigation System, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Navigation System (415-01 Informa
PRINCIPLES OF OPERATION
For a detailed description of the Passenger Door Module, refer to the
relevant Description and Operation section in the workshop manual. REFER
to: Handles, Locks, Latches and E
SEE MORE:
Connector - 12V power supply to RSE screens, power supply
from BJB and ground
Connector - AVIO panel audio/video input, private medium
speed CAN to RSE
screens
AVIO panel connector - USB input
LVDS connector - video output to right RSE screen
LVDS connector - video output to left RSE sc
Thrust washers (2 off)
Timing chain drive sprocket
Pin - dual mass flywheel (manual transmission) or drive plate (automatic
transmission) location
Dynamic balancer drive gear
Lower main bearings (5 off)
Alignment roll pin - Crankshaft pulley / mass damper location
Crankshaft pulley / mass