Land Rover Discovery: Passenger Door Module / Diagnosis and Testing
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 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
![Visual Inspection](images/books/227/index349.jpg)
- 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).
Rear Door Module (G1791769) / Removal and Installation
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Disconnect the battery ground cable.
Refer to: Specifications (414-01 Battery, Mounting and Cables,
Specifications).
Refer to: Rear Door Trim Panel (501-05 Interior Trim and
Ornamentation, Removal and Installation).
![Rear Door Module (G1791769) / Removal and Installation](images/books/227/index350.jpg)
INSTALLATION
CAUTION:
If a new component has been installed, configure using Land
Rover approved diagnostic equipment.
To install, reverse the removal procedure.
Remote keyless entry module diagnosis and testing
PRINCIPLES OF OPERATION
For a detailed description of the Remote Keyless Entry system, refer to the
relevant Description and Operation section in the workshop manual.
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
![Visual Inspection](images/books/227/index351.jpg)
- 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: Keyless Vehicle Module (KVM) (100-00 General Information,
Description and Operation).
READ NEXT:
COMPONENT LOCATION
Radio Frequency (RF) filter
Amplitude Modulation (AM)/Frequency Modulation (FM) antenna amplifier
Television (TV) antenna amplifier
TV antenna amplifier
Global Positioning Sy
SEE MORE:
SPECIAL TOOL(S)
REMOVAL
NOTE:
Some variation in the illustrations may occur, but the essential
information is always correct.
WARNING:
Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
Refer to: Front Subframe (502-00, Removal and Installation).
CAUTION:
Mark the co
REMOVAL
CAUTION:
Protect the surrounding paintwork to avoid damage.
NOTES:
Removal steps in this procedure may contain installation details.
Make sure the door window glass is in the fully closed position.
LHD illustration shown, RHD is similar.
Refer to: Front Door Trim Panel (501-05, Removal