ProfPat Posted June 8, 2015 Share Posted June 8, 2015 Hi I've recently bought an A4 convertible (2.4 V6 petrol) which has reversing sensors. These worked just fine for a couple of weeks but now I get either a continuous tone or random beeps - a bit like morse code. And then just every now and then, they work OK. I asked the garage to plug the diagnostic in and they got no error code suggesting it was probably a loose connection. And now I can't find a single auto electrician in the area (I live in Warwickshire) so I guess I need to try and fix it myself - the (very good) garage won't touch it. Any ideas? I can't even work out how to get at the wiring as it looks like you have to remove the bumper and I don't want to get in to that.... Quote Link to comment Share on other sites More sharing options...
James Posted June 9, 2015 Share Posted June 9, 2015 If it's not showing any fault codes then it sounds like a lose connection. Usually VAGCOM would show up an error if a particular sensor was at fault, so it would be a case of following the wires/checking plugs to identify a problem. Also, may be worth a shot in switching the ignition on (without the engine running) and putting the car in reverse. You can then put your ear against each sensor and you should hear a faint clicking noise. If one doesn't click then it is often that sensor that is faulty. Quote Link to comment Share on other sites More sharing options...
ProfPat Posted June 9, 2015 Author Share Posted June 9, 2015 Hi James Thanks - I just had a go at this and despite the beeps being random, all 4 sensors were clicking. Guess I need an auto-electrician! BTW I just bought a gadget to plug in to the diagnostic socket. I went for one that connects by wifi and although it seems to pair with my laptop, I can't get it to actually connect properly. I've tried a couple of software options. Don't suppose you've tried this? Quote Link to comment Share on other sites More sharing options...
James Posted June 9, 2015 Share Posted June 9, 2015 I haven't tried that type of diagnostic tool unfortunately but I assume it's meant to work with Audi? Have you checked the ignition is on when you are using it? At least you know your sensors themselves are OK now, although I guess that would have been an easy solution! Quote Link to comment Share on other sites More sharing options...
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