488 488 stuck in wet mode, all system failure lights, and ABS sensor not reading

Hello,

I have a 2016 488. The other day I got in and started the car and had suspension failure, manitino failure, e diff failure, and just about every other system failure. Also brake like is on.

I have two codes that seem to come back as soon as I clear them.

They are :

PIE81
Vehicle Speed Implausible Due To CAN Plaus Master ECU


P1F06 MSR Status Not Plausible Master ECU Absent


Battery is brand new AGM

I did some research and seemed like a lot of people had similar issues and was due to the brake light switch, so I ordered a new brake light switch and replaced it with zero change.

Took the car for a drive with the scan tool hooked up and was able to read the Wheel speeds from three of the wheels, the right rear will read zero at any speed. I assumed it was the right rear wheel sensor, so ordered a new one and installed today, no change. data-stream still shows no speed change out of the right rear wheel sensor at any speed.

Another thing I thought was odd, when I access the ABS module with my scan tool, the Manitino failure goes away, and I am able to change the car out of wet mode. As soon as I exit the ABS module with the scan tool, the car goes back into wet mode, and the Manitino failure light comes on.

Has anyone had a similar experience? Not sure why I am not getting any reading from the right rear heel speed sensor, thinking this could be the culprit for all of my lights…


Any advice is greatly appreciated.