Well my time has finaly arrived, three amigos on.TD4, 03. I've read loads of the posts and know most of the likely causes but would like to work through the easy ones first. My initial question is regarding the HDC. There doesn't appear to be anything wrong with the wiring and the green HDC light works when I turn on the ignition but does not come on when I engage it with the switch. Would this suggest the switch is faulty inside it or could the problem be at the other end of the two cables that disappear to I don't know where. Any help will reduce the possibility of me going INSANE :confused2: