Author Topic: Ageing central locking system...  (Read 820 times)

Offline Harooshum

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Ageing central locking system...
« on: 13 May 2009, 16:33 »
'91 16v oakie.  Press the button on keyfob, everything locks, then drivers door stays locked but passenger door, boot, and fuel cap unlock!!!  So then I have to use the key to manually lock passenger door and boot, but I have to leave the fuel cap unlocked!

Funny though, as when im working in the engine bay and the batt is disconnected for a while, I reconnect the battery, press the button to lock, and all lock and stays locked.  - (the first time!)  I then press to unlock, all unlock, then if i lock again im back to square one, where all but the drivers door unlock themselves.  Crazy I know.

My bro's '98 mk4 20v GTI non-T locks and unlocks fine with keyfob, but when using the central locking button on driver's door panel, all lock, then passenger door only unlocks itself.  No matter if the key is in ignition or not!  But you would only do that when in the car, so u can lock it manually!  VW's seem to have a common prob then huh?

I have seen some central locking pump units going on ebay for £5-£10, y'know, the ones that you get behind the strap in the boot behind the rear-quarter panel.  Is that what is needed u think?  (for my mk2 that is!)

H.

Offline doodles

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Re: Ageing central locking system...
« Reply #1 on: 13 May 2009, 20:23 »
91 Mk2. Locking problem will more than likely be the switch control inside the drivers door faulty or needing adjusted. If it is an aftermarket solenoid picky backed to the standard one then it will needing adjusted and the locking should be fine again..

Mk4 have a completely different system and every door has an ecu as such to work that door.. SOunds like a fault with the door module in the passengers door...

Hope this helps..

Offline Harooshum

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Re: Ageing central locking system...
« Reply #2 on: 15 May 2009, 12:29 »
Switch control in driver's door?  I looked at that when I had to check my elec window motors, and i didn't notice anywhere to adjust!

I'll try again over the weekend, and look out for it.  The haynes manual doesn't go into much detail about that...

h.