XSeries-forum

These have not worked since I got the car back in November last year.
I've done the listen to the sensor for a clicking test
And found front passenger side outer had failed.
I've now replaced this and all sensors are clicking away happily
Yet still getting flashing led on PDC button with audible warning ??

Try disconnecting the battery for 1/2hr negative off first and back on last, if that doesnt work you may still have another sensor failed / failing even though its clicking....diagnostics will tell you.

I had this problem a few years ago and it was caused because I had squashed the wiring loom when putting the front bumper back on and bared one of the wires. After taping up and being more careful putting the bumper on everything worked.