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Toby C

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Everything posted by Toby C

  1. How can you diagnose a reverse sensor fault?

    Toby C posted a topic in Audi A4 (B8) Forum
    Hi all. 2010 S4 B8 here. I get a long beep when putting the car into reverse, which, if I'm correct, signals a fault in the sensors? The reverse lights turn on, so the reverse switch is working. There is no 'buzz' or 'clicking' from any of the sensors when in reverse. I've heard that if one sensor is fault it just stops all of them from being used? What's the best way to diagnose the fault sensor? OBD? Rear bumper off and test each sensor with a multimeter? Thanks in advance.




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