Hi Simon, thanks for your reply. I have the vehicle coming tomorrow - someone has mailed me a couple of wiring diagrams but obviously any more would help and I would be very greatful. Til I see the vehicle I cant get the build code but will do. Ive tried another known good keypad and that does the same ( both lights on after entering code) so its not that.. the pump appears to have a little square black plug conector - 4 wires (gold pins) but I dont know which are for what. I cannot see where the wires go other than to the pump - if you understand - theres so much metal on the end of the pump covering the wires etc! Im hoping that if I can at least get the pad to fire on the green light once - I could bypass it that way.. but if not, and I suspect not.. do you or anyone know if a combination of those 4 wires could produce the desired result? Though that may become evident from the diagram (!) -- ok, thanks thus far..I'll keep in touch when I get it here Regards Mike