2008 B9 central locking dash switch

[Stoots1975]

Would anyone on here be able to help me out, I'm trying to find a pinout diagram for the lock/unlock dash switch.

Many thanks in advance!

[Zion]

It goes to the BSI computer for processing. Body Systems Interface. What is it you're trying to do? Because the switch just signals the BSI you want to lock or unlock the doors, and it does the function for you. It controls everything.

My mystic senses tell me you're trying to add aftermarket central locking....yours doesn't work.....aaah the mist is descending....key issues after battery replacement....

Nah lost it, crystal ball has given up.

[Stoots1975]

It goes to the BSI computer for processing. Body Systems Interface. What is it you're trying to do? Because the switch just signals the BSI you want to lock or unlock the doors, and it does the function for you. It controls everything.

My mystic senses tell me you're trying to add aftermarket central locking....yours doesn't work.....aaah the mist is descending....key issues after battery replacement....

Nah lost it, crystal ball has given up.

Almost correct, my van does have central locking (which doesn't work from the remote), so I was trying to find the lock/unlock trigger wire to connect another remote system to

[Stoots1975]

My remote locking isn't working because I have a clone Chinese key, so I'm going bluetooth on the new system. Built in encryption, and auto locking/unlocking within 3m of the van.

[Zion]

Lol - bingo, I'm good. Chinese key....encryption....hmmmm 

Ok let's see...diagrams below, may not be as easy as you hoped. But not too bad. It's a toggle function. Non latching.

Central locking (6220 is the button)

  Central Locking.pdf (Size: 353.56 KB / Downloads: 6)

Component ID for schematics 

  Citroen Components.PDF (Size: 153.2 KB / Downloads: 4)

Wiring colours (schematics colours are in French)

  wiring legende.pdf (Size: 73.44 KB / Downloads: 1)

[Stoots1975]

Non latching is perfect, less wiring! Just one trigger wire to sort, now just to find out if it grounds or gives 12v positive when pressed....    

Thank you! I shall do some reading and hopefully find out!

[Stoots1975]

OK so when pressed it goes to ground, absolutely perfect! Saves extra relays etc. 

Zion you are a saviour. You've saved me a lot of soldering!! Thanks dude!

[Zion]

You're welcome!

Big benefit of the switch is that even the load bay doors lock & unlock with it.