Check Engine Light - “Stop Transmission Error”

[Bob O]

Just went through a car wash and now have the check engine light on and the transmission error message that keeps popping up. Any idea how to resolve this?

 

[AWo]

Did the car wash spray water from below to the underside of the car? I assume soemthing got wet which shouldn't? maybe a plug, creating some kind of short cut or some kind of leakage current.

If you can drive, maybe it disappears when it has become dry.

AWo