Ok , long story but whilst trying to remove part of my wiring loom , which had shorted out on the gearbox, at 23.30 in the freezing cold , I was doing well disconnecting all the various connection around the engine ,after spending some time trying to feed the wires through under the passenger seat so the immobiliser could remain connected to the loom , I finally had enough and decided to cut the loom by the black box ! , I know! but like I say it was cold and late and I had been out there for 2 hours ! I convinced myself that the wires would be colour coded so would be easy to reconnect , how wrong was I , that part of the loom contains 7 black wires ! And now I don't have a clue which one goes where , I can find out what part of the loom they go to but how do I work out where they go to ! , was going to open up the black box but guess I still need a wiring diagram of the immobiliser , and these are quite rightly hard to find . The alternative would be to bypass the immobiliser . Which I would do for short term just to get the defender back on the road for this snow we are having .

Find a used loom probably easier