yeah thanks for the advice, checked wiring on top of tailgate, wires broken, got the rear wiper working, connected another and now the interior lights work in the back, however when the taigate goes down it still doesn't lock and the interior lights stay on i can see that they are connected to the lock by tracing the wiring, my next questions are... how does the lock work i can see two wires going in so i'm presumming theres some kind of electro-mechanical locking device which probably isn't working (sorry thats the best way i could phrase it) and 2, how does the central locking release the tailgate lock as looking at mine it doesn't appear to be linked to anything....regards