Originally Posted by dapopa9
I'm still trying to find someone that has an insight on the receiving units? Any idea on how to troubleshoot that?
I'm not a service tech, but I would guess that you will need to hook it up to computerized diagnostics. pbonsalb said his dealer was able to diagnose the issue on his 08 5 series, which used the same sensors. It may take a dealer or at least dealer-level equipment to accurately diagnose that type of fault.