unlock,locks again immediately

[Paul in NZ]

You can verify it trying to lock all the doors with the passenger's door knob (it is not supposed to work).

Passenger's door knob should open all the doors.

huh??

[Javier]

to unlock the system, but not to lock it. The micro switch is there but not connected to the GM (not used). This is what I call non monitored lock, as not having this contact wired will prevent GM to know if Passenger's door did lock or not.

In later models (from 1992), it is wired to the GM and the knob will unlock/lock the system, and be a possible cause for the immediate unlock after lock behavior.

See pictures comparing both systems.

Javier

[Paul in NZ]

uh huh i should learn how to read!!,i am going to try dans fuse idea but i suspect its the microswitch on the drivers door.....

[Javier]

are F30 and F31, but doubt they are gone unless other symptoms (non working knobs, or the lock-unlock reply syndrome. No losses checking them though.

Try to record any other weird things wile the problem shows, or even making an exhaustive audit of the Central Locking system operation. Operate in every possible way under any possible status, record evry thing. Any miss behaving can put some light to the problem.

I only have seen this unlock-lock reply issue with the engine running, not sure if even in drive position in transmission. As I told you, only when making a brief stop to let somebody in, or out. I will put extra care from now on in order to learn a bit of this problem.

Javier

[Dan in NZ]

I guess I was just lucky it was only the fuse!

[Paul in NZ]

where are 30 and 31 on a dec 1989 manf euro 535i,#bf01045

[Dan in NZ]

Mine were under the back seat. The ones under there don't tell you what they do, but I think the central locking ones are the fuses that you don't have to remove the black cover for. It's been a while...

[Javier]

under LH side rear seat, for 1989.

Javier

[Paul in NZ]

ok i have been observing this,the passengers lock knob poerates a s you say javier,everything seems ok at the boot.The other day i t took three attempts to get in,and all knobs were up except drivers door ,relock unlock and all knobs came up..i have a suspicion its the drivers actuator.......is there a procedure on e34 .net.....what does the microswitch do,tell the gm weter the dooris locked or unlocked cos it could be that to right??

[genphreak]

I'll give this a shot. Thanks, ANZAC brother!

I'll be back w more... GP