Citroen C4 Picasso Centra Locking Problem

[raybush]

Any Citroen/Peugeot mechanics...help!!

I've already put this onto the Citroen Owners site and have had not luck ,so I thought i'd try my old friends at the Answer Bank.

The Passengers side front door does not lock or unlock with the blip on the remote key.
The only way to lock all doors is with the key in the passengers/drivers front door.If you try with the blip all doors lock apart from the passengers door ,if you then open the passengers door it trips all the other doors to open .
I've had the door apart and have taken the bolts out of the door lock ,but cannot see how the mechanism comes off.
Or is there something that has stuck somewhere ion the assembly?.
 
Any ideas/advice would be great

[raybush]

Forgot to say it's a 2009 1.6D

[tonyav]

Have you tried doing a BSI reset ?, Peugeot Citroen have an Ecu ( separate to Engine Management Unit ) that controls a lot of things like central locking.

A quick Google and I found this reset procedure, got to be worth a try it may fix your problem.


Put the driver's window down, lift the bonnet and ensure all equipment is switched off.

Ensure all doors are closed and remove key from the ignition.

Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds.

Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.).

Switch on the side lights through the driver's window.

Switch on the ignition and check system's functionality.

Hold lock button on key down for 10 seconds.

Remove key open & close door test central locking system.

Start the engine and complete the system's check.

Failure to follow this procedure could result in incorrect operation of many BSI related items.

[raybush]

Thanks for the answer.
I've had this suggestion from the Citroen site.I don't think it's an ECU type of fault ,it sounds as if it's more like a mechanical fault as it locks/unlocks on the key.

[TWR]

Check the Connecting plug that comes through the body & into the door, you will see this plug when yo open the door it should be in the middle of the door, undo the plug & insert WD40 then try, have a look if the connecting rod is still in place, try Lifting / Lowering the door lock button, if these do not work I would then start looking at a new Locking Switch inside the door, check eBay.