Hi Mirez Thanks for the quick reply to my problem. Yes, it is the climate version, the large 4mm wires i now know are pin2 and pin3 overheated and burnt the plastic connector.I have a haynes manual to which the wiring diagram shows as a 4 wire connection, same colour codes but different pins. I was on the internet all afternoon trying to solve the problem. Once again thanks for your help. Musky