Hey all, so I checked continuity between the sensor and the EHC unit. There are three wires between these components. (+), ground, and signal. All three wires checked out. For the other three on the sensor.... I haven't a clue where they go.

I did check the inpa voltage readings while moving the suspension, and it read 0v the entire time.

Since the wires were ok I wanted to check the supply voltage to make sure it wasn't an EHC fault. Between pins 5 and 7 (+ and ground) showed 4.9V which looks to be correct. (For anyone needing to check this connector, it comes apart very nicely to expose the crimped pin. This was very nice when checking readings.)

At this point I feel pretty confident the sensor (the new one) is bunk. I got the replacement "OEM Replacement" albeit non-bmw sensor off of Amazon. I will now go to the dealer so if the issue persists I won't blame the sensor again.

I will report back when I swap it again.