retarius

Hi BrianH, Thanks for your feedback on this. I'll give your suggestions a try and see what I can find out, and start a new topic if I'm no further forward. Cheers, Vaughan

And then measure the resistance between the surround and a known good ground. Hi, I have a similar problem; test probe to centre and to surround for earth shows a DC volts reading of less than 1.3. Fuse is ok. I've removed the centre console and disconnected the wiring harness and repeated the same test there with the same results. The only difference is I can get 10V DC from the lighting + and the earth. If I measure the resistance between the surround and a good earth, what am I looking for? Thanks, Vaughan