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Found 1 result

  1. DerekJr.

    PDC silent treatment

    Hey guys, Looked all over the interweb for a cure, but to no avail. I've replaced my problematic PDC sensors, but now I have another problem (or one that existed along with the problematic sensors). Before I replaced my faulty sensors, whenever I selected Reverse, I would get a continuous error tone, and sometimes it would be silent (no tone, not even when getting close to things). I've replaced the faulty sensors and selected Reverse, and they worked the 1st time. "Great!" i thought. I locked the car and went back home. A few hours later, I went for a drive to the shop and when I selected reverse, there was not error tone, but there was also no beeps when getting close to objects. When I got home I selected reverse and still no sound. While still in reverse i decided to remove the bottom plug from the PDC module which caused the error tone to sound. I inserted the plug back in and it sounded the "beeps" presumably because I was standing behind the car, as I moved further away, there was more time between each beep (shows its working). I thought maybe it wasn't plugged in properly. I locked the car and went inside. A few hours later, I selected reverse and nothing. Again I unplugged the bottom plug and plugged it back it and the PDC came to life. Immediately after this, I switched off the ignition and locked the car. After a short period of time (3 seconds) I unlocked the car and selected Reverse and the PDC worked. A few hours later it didn't. Notes: There are no error codes in INPA, all the sensors are clicking (I can feel and hear them), car only has rear sensors (1999 E39) It's like once the car goes into sleep mode, I have to reset the PDC by unplugging and plugging it back it. Could the PDC module be faulty? Many thanks