Commodore central locking weirdness

[FASTVP]

Anyone know anything about the central locking systems in Commodores?
My VP is doing some weird shit at the moment. My alarm has been playing up, so I have been locking it with the key. When I unlock it, only the drivers side lock opens, not the whole lot. There is no way to open the other doors at all! You cannot unlock them from the inside (they sort of lock down), so I can't carry passengers. My fiance has to climb over the drivers seat to get in!
It is very annoying.

My guess is that the microswitch which detects that the drivers door lock has been opened is not working.

Has this happened to anyone else?

[FLI355]

Not that particular problem although I've seen heaps of ones where the rear passenger side door never locks when using the central locking.

[Cypher]

have you tries pressing the unlock key and holding it? friend of mine used to have a prob similar to it.. Definitely get it checked..
check ur fuses as well

[EvilChief]

friend of mine had similar problem with his VR, but his central locking was shot, cause he screwed up the wireing somewhere and half of his cars electric was dead:D

maybe u got a short circuit somewhere or loos wires :)

thats my guess but i don't know too much about commies:rolleyes:

[gtst4]

Pull the trim off the door. The solenoid that activates the central locking when the alarm is activated piggybacks the original item. Check that the piggyback hasn't come loose - its only a screw-onto-wire type connection - sort of like how a scotchlock works.

[FASTVP]

Thanks for the replies. My bet is on a loose connection.
It miraculuously fixed itself the other night. It worked alright for about a day, now it's shit itself again. I found that it sometimes works if I slam the door.
So the door trim is coming off tomorrow.

[NBS]

i bought a keyless entry remote for my VP a while nack, then i got a flat battery in my car, after a new one installed the keyless wont work ne more :(

been to holdens dealers and explained..they cant re-tune it or such..just tld to buy a new one, pretty poor i think :(

[tandy ass]

You may need to disassemble the central locking master motor(s) - sometimes driver and passenger are master, more often than not only the driver is the master, rest are slaves - the master has the ability to unlock all doors, slaves only unlock themselves.

The master solenoids have microswitches in them that tell the central locking control box when a door is unlocked or locked, and the control box supplies the appropriate polarity voltage to the other door motors to lock or unlock them.

Your problem could be -

Shagged microswitches in the master solenoids - easy fix if you can get them apart, go to Jaycar or tricky dicky and get some contact cleaner and spray it all over the switches and lock/unlock the solenoid heaps of times to allow the cleaner to do its job

Dry joints in either the masters or the control box.

Dodgy wiring between the masters and the control box

Intermittent 12v supply or ground to the control box

Probably a few other things that I cant think of now....

Cheers