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Author Topic: Central door locking problem  (Read 455 times)

Offline Mike Siddall

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Central door locking problem
« on: July 08, 2021, 09:39:32 pm »
Hi all. I’m new to this site – so hope I’m not wasting anyone’s time with this apparently common query! I’ve spent a lot of time reading other posts on this subject – but my car’s symptoms seem slightly different.

When I use the key in the driver’s door to lock all the door(s) – only the driver’s door locks (the others remain unlocked).

When I use the remote control to lock all the door(s) – they all lock except the driver’s door (this remains unlocked).

When I sit in the car and use the central locking switch on the driver’s door – all the doors lock except the driver’s door. However, the door appears to want to lock (i.e. the chrome ‘pull’ handle moves slightly inwards – but then stops).

Before I spend time checking the electrical continuity of the wiring circuit – do you think that I should be looking at the driver’s door ‘actuator mechanism’ first.

If so, where is it – and is it a difficult job to attempt?

Thanks for any replies.
Mike

Offline johnnyroper

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Re: Central door locking problem
« Reply #1 on: July 09, 2021, 05:33:11 pm »
Always worth a look at the wiring for anything central locking related,the solenoid is part of the latch assembly. So I would check wiring in gators and the latch.

Offline Mike Siddall

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Re: Central door locking problem
« Reply #2 on: July 11, 2021, 07:42:39 pm »
Thanks for the reply.
I took your advice and looked inside the gaiter and - you were right - 2 wires were broken (red, and red/green). I reconnected them temporarily (using connector blocks) but it made no difference to the problem. I resorted to removing (cutting off) the rubber gaiter for a better look at things - to find that at least 2 other wires had received earlier repairs.
I am going to take the door card/panel off tomorrow and check for continuity in all the wires. I am thinking that I may need to look for a second hand driver's door wiring loom from a 'scrapper'.
My Galaxy is a Mk 2 'Ghia'.  Will a driver's door wiring loom from 'any' Mk 2 Galaxy be the same? Does anyone know?
Thanks

Offline brianh

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Re: Central door locking problem
« Reply #3 on: July 11, 2021, 08:00:47 pm »
I really wouldn't bother with a second hand loom. These are a known weak point on the galaxy. You'd be better to repair the loom with soldered wires, keeping the solder joints outside of the gaiter if possible. Connector blocks make the already tight wiring shorter and stiffer, which makes them more prone to failure.

You should find as long as you stick with the same or better spec that you should have all the required wires though if you do want to persue that route.

Don't rule out faults in other doors as having an effect on the drivers door. Boot/tailgate included (and likely to be worse than the drivers door given the extra angles involved).

You might find these useful

https://www.fordmpv.com/smf2/ford-galaxy-vw-sharan-seat-alhambra/driver's-door-wiring-loom-info/
https://www.fordmpv.com/smf2/ford-galaxy-common-faults-and-problems/ford-galaxy-repairing-broken-door-wiring/

Offline brianh

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Re: Central door locking problem
« Reply #4 on: July 11, 2021, 08:02:37 pm »
Also if you want to test your door lock itself, on other cars I've found you can plug them into the opposite door (you can't fit them there as they are the mirror image, but electrically tend to be the same). Operating the lock catch with a screwdriver then allows you to operate the various bits of the lock to test. If it works there, you know its a different issue (like the wiring as it looks like you've already discovered)

Offline Mike Siddall

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Re: Central door locking problem
« Reply #5 on: July 12, 2021, 02:07:13 pm »
Hi again.
Thanks for the replies

I’ve not had time, yet, to check ‘continuities’ in the door wiring loom (‘cos it’s pouring down!) but wonder if anyone can ‘further narrow down the problem’ from these (what seem to be) conflicting symptoms -

When I use the key in the driver’s door to lock all the door(s) – only the driver’s door locks (the others remain unlocked).

When I use the remote control to lock all the door(s) –  the driver’s door doesn’t lock (but all the others do).

I can’t ‘get my head’ around this

Also, when I sit in the car and use the central locking switch on the driver’s door –  again, the driver’s door doesn’t lock (but all the others do) - (the driver’s door appears to want to lock (i.e. the chrome ‘pull’ handle moves slightly inwards – but then it stops).

Any theories would be welcome!

Offline johnnyroper

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Re: Central door locking problem
« Reply #6 on: July 12, 2021, 06:59:03 pm »
When using key in drivers door you are controlling that door locally,the lock signal for other doors goes down the door wiring. When using remote signal is sent from the central locking controller to the doors via door wiring.
The sliver handle trying to move could just be partial connection on the broken wire not quite carrying the current required,it’s just breaking down when locking motor tries to draw more amps.

Offline Mike Siddall

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Re: Central door locking problem
« Reply #7 on: July 12, 2021, 07:33:11 pm »
Thanks for that simple explanation - that's something I can 'get my head' around.
Cheers!

Offline Mike Siddall

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Re: Central door locking problem
« Reply #8 on: July 19, 2021, 12:38:06 pm »
Hi.
Does anyone know how to disable the 'remote' central locking function - and if this is done, will central locking still work by using the key in the driver's door.
Thanks for any advice.
Mike

Offline Mike Siddall

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Re: Central door locking problem
« Reply #9 on: July 19, 2021, 05:31:59 pm »
Additional question re the above - Is there a central locking 'module' (or whatever) that could be malfunctioning and can it be 'reset', or replaced?
Thanks

Offline brianh

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Re: Central door locking problem
« Reply #10 on: July 19, 2021, 10:00:15 pm »
You can disable the central locking by pulling the fuse. You might want to do so if the car is randomly unlocking itself or refuses to lock.

Your most likely cause of issues will be broken wires. Your next possible cause after that is a failed lock motor. The wires move every time you open the door, and are of poor quality and design in the Galaxy range. They routinely cause issues because of this and if there is a fault there, swapping modules will not help. I'm not even sure offhand that the module isn't part of the fusebox anyway (as is the case with the indicator flasher etc).

It does sound very much like either the drivers door lock motor or the wiring to it is at fault to me. I've never had any luck trying to disassemble and reassemble the door lock modules, but they can be found fairly cheaply on ebay - just make sure you buy one thats tested to confirm it works both on the key inserted in the lock, and locked remotely (Either from another door, or the keyfob)

 

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