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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 71
United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
Dc current to central door locking Actuator
Rear passenger central door locking has stopped working. Got access to the power cable supplying the actuator. Am I right in thinking a quick power dc voltage signal should be sent upon pressing the key fob? Hooked up my volt meter but nothing shows when setting it to dc 20v. Other doors work so not sure if power or actuator. Any other tests I can do? Thanks
Post #1058553 25th Jan 2025 3:35pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5788
2006 Defender 110 Td5 USW Zermatt Silver
99 percent of time it’s the wires from vehicle to door.

Last edited by landy andy on 25th Jan 2025 4:07pm. Edited 1 time in total
Post #1058555 25th Jan 2025 4:00pm
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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 71
United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
Going to the actuator is only two thin wires protected via some trunking.
Post #1058556 25th Jan 2025 4:04pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5788
2006 Defender 110 Td5 USW Zermatt Silver
If there is only two wires (which there would be on a rear door) then that will be them
Post #1058558 25th Jan 2025 4:07pm
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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 71
United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
So the way I am testing is correct 20v dc on voltmeter

Last edited by Phillywilly72 on 25th Jan 2025 4:24pm. Edited 1 time in total
Post #1058560 25th Jan 2025 4:09pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5788
2006 Defender 110 Td5 USW Zermatt Silver

Click image to enlarge
Post #1058562 25th Jan 2025 4:11pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5788
2006 Defender 110 Td5 USW Zermatt Silver
If you got to the B post you can pull out the rubber trucking that goes to the door and then pull out the connector that supplies the power to the central locking. Do your tests there. And also give the wires that go into the door a good pull. I think you will probably find a broken one or two.
Post #1058565 25th Jan 2025 4:20pm
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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 71
United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
Thanks
Post #1058566 25th Jan 2025 4:21pm
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