Re: Heated Read Window GTV
I did not think the relay was at fault but I just canged it anyway as it was only £6.20. As expected it did not solve the problem. I am going to spend some time over the weekend looking at the back of the fuse board where the relay is mounted to see if there is anything I can test. I will also print out all the wiring diagrams and the dignostic procedures I will report waht I find. Interesting about your head unit. I recently spent a lot of time hunting for a fault that was draining the battery. It took weeks. It turned out to be the contrller for the remote locking. Among many other things I disconnected/removed all the items that have a permanent live. (as distict from switched live) including the radio, arial, sunroof connections etc . I wonder if I disturbed something? I'll check?
If I feel enthusiastic I might find a way of testing the rear screen while bypassing all of the usual electrics.
Does the little orange light on the switch illuminate when you press it?