PDC Stopped Working

[alan11]

The PDC on my 2003 X5 has suddenly stopped working. When reverse is selected I get a constant tone for a short period and then nothing, no high or low intermittent beeps as I approach obstacles. Does anyone know what might be wrong and if there is a fix?

Thanks
Alan

[chefwong]

Constant beep means you have a fault in your PDC system.Ususally just a sensor that throws the entire system out of whack. Either it is bad (damaged) most likely by someone or you hitting the rear sensor. Try going around and reseating all the sensors...

[alan11]

OK, so I've tested all the PDC sensors as described eslewhere in this forum and non of them gives a tone when tested with the hand. I can't believe that all 8 sensors have failed simultaneously, so the problem must lie elsewhere. I assume that there is a central processor module somewhere, could that have failed ?

Alan

[flyingmachine]

probably just one of those pdc sensors is going south. it's common. I've replaced 2 of them in the past couple years. try to get code and see which one is out.

one possible way to test it without code reader but I'm not sure if it works. you can disconnect the one you suspect and see if the weird beeping behavior is gone when you shift into reverse.

[cobra94563]

I'm having the same issue... but only in the morning (cold and wet). I suspect as others have said, ONE of the sensors is going out.

[StumpyPete]

I had this last week, mine was simpler to solve - it was due to the build up of snow on the sensor! A quick wipe and all was fine.

[bams]

Hi there if 1 sensor is faulty thats the problem you get. You have to check the sensors 1 by 1