Door Lock Motors
- Make
- Land Rover
- Model
- Defender Electrical Library
- Year
- 2002 on
- Section
- Operation › Door Lock Motors
Door Lock Motors
When the anti-theft alarm ECU (C1980 on LHD, C0057 on RHD) receives a valid lock signal from the RF handset, it provides a feed to the following on K wires:
To the driver door lock motor (C0342) To the front passenger door lock motor (C0327) To the RH rear passenger door lock motor (C1996) To the LH rear passenger door lock motor (C1996) To the tail door lock motor (C0617).
NOTE: The RH rear and LH rear door lock motors have the same connector numbers as they utilise the same harness.
Current flows across the motors and back to the anti-theft alarm ECU (C1980 on LHD, C0057 on LHD) on O wires. When the anti-theft alarm ECU receives a valid unlock signal from the RF handset, it provides a feed to the door motors on O wires. Current flows across the motors and back to the anti-theft alarm ECU on K wires.
Interior Lamps
The anti-theft alarm ECU will illuminate the interior lamps under the following conditions:
If the alarm system is disarmed using the remote handset If a door or the tail door is opened.
The anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) provides a feed to the front interior lamp (C0355) and the rear interior lamp (C0356 on 90 Station Wagons, C0357 on 110 Station Wagons) on PW wires.
For more information on interior lamp operation, refer to the Interior Lamps – Anti-theft Alarm section of this manual. INTERIOR LAMPS – ANTI-THEFT ALARM.
Diagnostic Socket
The anti-theft alarm system can be interrogated using TestBook via the diagnostic socket. The diagnostic socket (C0040) is connected to the anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) by an LG wire.
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