Well it is in the hands of the guys at Williams now...
Of course whatever has happened must be my fault as I was the last person working on it - I removed the dashboard to get at the cable runs behind. So I got some gentle ribbing from Lawrie...!
There are a lot of not used conectors there, some taped up, others hanging free. The wires to the long thin connector on the RHS of the back of the instrumentpannel has some wires with damaged insulation where the heater temperature quadrant rubs against them....
We shall see what happened.
No doubt it will cost me money.