Hi,
Rear doors will not unlock from inside or outside.
Could you tell me please if you found a solution to this problem, or anyone has any ideas.
My 2000 LX 110 HDI Family Estate has the same problem.
I have so far removed all the door panels looking for any obvious problems, I've sprayed WD40 in and around the locks and connectors, checked the multiplugs under the carpet at the driver side footwell (all very clean and dry, unplugged, replugged each a few times for good measure), checked fuses etc, tried to reset the key fob, reset the BSI using the correct procedure (any time I have disconnected / reconnected the battery). All rods and linkages are free and move freely at the locks as they should when operated, but cannot be doing anything within the locks themselves. From reading stories online I know that the last resort is to smash into them to get to the mechanism inside.
When I lock the doors using the fob remotely the back doors lock but not the fronts, when locking with the key in the driver/passenger door I can hear and see the back doors locking and the door that the key is in, but not the other front door.
I can only unlock the doors that the key is in (mechanically), the other doors stay locked. Nothing unlocks remotely.
When locking I hear the solenoids operating, but no sound when trying to unlock (remotely or key in door). It looks to me that the 'unlock' circuit is not receiving the signal / electrical power to unlock (BSI not getting the signal to unlock or getting the signal but not forwarding the electrical signal to the doors???). Only reason I can unlock the fronts and tailgate is because it's mechanically on the key.
I have thought about getting two locks from a breakers yard and plugging them in to see if they work. If they do work and lock / unlock then one (or both of my locks) faulty?! and problem solved. If not then I think the problem has to be the key fob or BSI / relay?!
Is there a relay for the unlock circuit that can be replaced?
Because of this I cannot MOT the car and can't use it for now
Sorry it's a bit long winded but just trying to give as much info as I can.
Any input much appreciated.
Regards & Thanks,
Stevie.