Forum for the Citroen C3. Jump to content. Citroen C3 Picasso 1.4 2014 Adblue location C3 59 plate only the driver door locks with central locking By 1.1-Test the opening of the doors of the Citroen C3 with the key. A first test to be carried out is that of the central locking. To do this press the key of your car. Observe if the problem is central. That is, is there a single door stuck or several. If this is verified then it is likely that the problem is with the centralization. I own a 2006 Citroen C3 XTR 1.6 Diesel and up until last night it's been fine bar an issue going through lightbulbs but that's not the main problem. The main one is the central locking doesn't work when using the remote any more. Citroen Xsara Central Locking - Ben79. The remote works a motor, the key works the lock and then the motors operate the other doors. If you listen carefully on the Xsara, you will hear the door with the key in it unlock a split second before the other door motors. Check if you have the same locking problem when you use the key in the passenger Citroen C3 (2nd Generation): central locking no longer works on one of the doors. First try to lock your door by hand. When this does not show any complications, it shows that the system is operational. So your concern comes from another place somewhere upstream. In most cases it is a concern originating from a short circuit. First, sorry for poor video. However, this should contain all the information you need. Problem: car system does not recognize rear door was closed. Informat Hi All I have been searching to see what could be causing an issue with my central locking. So far not been able to see anything that relates. Issue I have on a Picasso C3 2010, the passenger side door intermittently fails to lock. Central locking engages wing mirrors fold in and doors lock, however I can on occasions just open the passenger door. Solution, replace switches £20 each from Citroen dealer. Pop the top of the central console around the gear lever and get your hand under the switch and squeeze the catches either end of the switch, pull switch out and unplug it. 23. New C3 front fog lights not working. Thankyou to gazard for this solution. 1 Answer. Just do it today, in driver's side door, wires from manual keylock door switch, white wire-lock, green wire-unlock, whitegreen-ground, system is negative trigger on both wires (white-green), your black box for remote control should be configured for "Negative control signal". +12v from window electric motor (xara picasso 1.8 16v 2002 The 2003 Citroen C3 two button remote is likely to take a CR2016 3V (available here) To lock the doors when the central locking is not working you first need to remove the black plastic stickers that cover the manual switches. The stickers are black and round and found on the door, on the door shut near the lock. DvZ3.