PDC Sensor Issue

[ryansbmw]

About 8 months ago, one of my PDC sensors started intermittently failing and eventually completely failed, shutting down the entire PDC sensor. Did the finger test to figure out which sensor it was and I also used Protool to double check- front center left sensor. Buy a new sensor, take it to the shop today to have it installed.

After installation, the PDC system is still not working. The shop said all the wiring looked fine but they didn’t have time to dive deeper into the issue today. Checked the fault on Protool and it still points to the same sensor. Tried clearing the fault multiple times but keeps coming back.

Any ideas what else it could be? I guess it’s possible the new sensor is faulty. Only way to tell would be to swap it with the center right one and see what happens