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central locking gone haywire 

 

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 Post subject: central locking gone haywire
Posted: Sun Sep 18, 2005 10:03 pm 
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i need your help guys my central locking just seems to be not unlocking it unlocks but locks straight back up sometimes and last nite when a door was open it just kept lokcing and unlocking until the door was shut, any help would be a great help

 

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Posted: Sun Sep 18, 2005 10:14 pm 
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sounds like the actuators are fukd

 

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Posted: Sun Sep 18, 2005 10:46 pm 
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my dad had the same problem after his car was repaired. his is a wagon and when he got it back they left the wiring loom sitting at the bottom of the water gutter between rear doors and tailgate (wagon) started raining one night and everything went haywire. lights were turning on and off by themselfs stereo had a mind of its own and doors couldnt decide whether they wanted to be locked or unlocked cost us $0 to repair but was a bloody pain in the a** to find :P
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Posted: Sun Sep 18, 2005 11:49 pm 
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how much is it too replace the actuators? and how hard

 

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 Post subject: try this
Posted: Tue Sep 20, 2005 8:21 pm 
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It may be only one actuator that is causing the problem. They have two diodes in them and they are just pushed into V slots and can become intermittant and cause the problem. Also they go short circuit and the same prob. I found this doing my upgrade with a secondhand unit, so I took it apart carefully and found a diode shorted. Pulled it out and replaced it with a 1N4001 series diode from DS etc and voila. Biggest prob finding the faulty unit. If u unplug each unit inturn and try the locking/unlocking the prob will stop when faulty unit unplugged.
Hope this gives u some ideas.

 

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Posted: Tue Sep 20, 2005 10:05 pm 
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sweet thanks for that so where bouts do i find them inside the door trims somewhere??

 

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 Post subject: Door
Posted: Wed Sep 21, 2005 10:35 am 
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Yes the actuators are inside the doors behind the trim. u will see them they will have a link to the door lock and button. u will also find the cable going to a connector which u can disconnect to see if the one ur looking at is faulty.
Good luck I know its time consuming but it may save u money and if u find which one is faulty u have the door apart to replace it anyway.

 

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 Post subject: Re: Door
Posted: Thu Sep 22, 2005 3:20 pm 
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{USERNAME} wrote:
Yes the actuators are inside the doors behind the trim. u will see them they will have a link to the door lock and button. u will also find the cable going to a connector which u can disconnect to see if the one ur looking at is faulty.
Good luck I know its time consuming but it may save u money and if u find which one is faulty u have the door apart to replace it anyway.


once you drill the rivets out, can you just screw the acuators back in place?

 

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Posted: Thu Sep 22, 2005 4:53 pm 
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Below is a picture of my door when I was disassembling it and I have marked out the actuator ( in a green circle ) and rivets to drill out. Also, yes, you can just use a nut & bolt to secure the actuators back in place when you have finished.



Image

 

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Posted: Thu Sep 22, 2005 5:40 pm 
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My problem, was i would lock the doors, then they would just unlock themselves, the front doors are the masters and generally cause the issue, mine turned out to be dirty plug connections, pull the fornt doors apart and give the connecting plugs a good clean with a small slip of sandpaper, see if it then behaves itself.

 

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