JonJon Posted January 12, 2008 Share Posted January 12, 2008 Hello again Another beginner's question, hope you don't mind; The rear door/window de-mister doesn't work on our recently bought 90 (P); the fuse looks o.k though; where would the next obvious place to have a look for faults? It's becoming a pain as we've lots of reversing and trailer shenanigans. Also, as I'm here;' what are these things bolted under each door in the pic below (bulgy barry-thing with some check-plate on top surface)? They were on it when we bought it, they don't do much as far as I can see and I'd be happier without (although I think my wife secretly likes them) Cheers! Quote Link to comment Share on other sites More sharing options...
jacks906 Posted January 12, 2008 Share Posted January 12, 2008 how do the wires in the window itself look they could be broken (like mine) also there just side steps altho there handy for just light knocks and bags Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 12, 2008 Share Posted January 12, 2008 JonJon, The first thing you need to establish is where the power stops so check if there is power at the end of the wire where it connects to the rear window, check also the live terminal where your fuse fits in and at the back of the switch. Once you find out where power is missing you can then narrow down the likely problem. One possible cause is failure of the voltage sensitive relay and if you find that this is the problem, there is a workaround for it here. These are expensive to replace and are the usual culprit when it comes to non working rear demist after the switch. If you are not sure what you are doing, get a grown up to help The bars at the side are just steps to help you get in and out, they are also handy for stopping car doors hitting your bodywork in Sainsburys car park HTH Mo Quote Link to comment Share on other sites More sharing options...
JonJon Posted January 12, 2008 Author Share Posted January 12, 2008 If you are not sure what you are doing, get a grown up to help Very funny. Thanks for the helpful tips though. Quote Link to comment Share on other sites More sharing options...
jacks906 Posted January 12, 2008 Share Posted January 12, 2008 owwww my head hurts just tryin to picture it also if the light eluminates on the dash does that mean the realys works?? Quote Link to comment Share on other sites More sharing options...
western Posted January 12, 2008 Share Posted January 12, 2008 Have a look at my reply you need the upper section on the wiring diagram in this thread Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 12, 2008 Share Posted January 12, 2008 Very funny. Thanks for the helpful tips though. We generally refer to people who have some knowledge as "grown ups" on this forum, it wasn't a dig Mo Quote Link to comment Share on other sites More sharing options...
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