I’ve still an issue with this combination..
Most of the time it is working fine but from time to time it happens that, the wiper motor is blocking and making some noise. This happens always after the switch gets moved from one position to the other. (different positions)
The only way to solve this is removing the 12V and switch a few times prior to reconnecting the 12V.
This is ok on the table, but not fine if it is mounted inside the engine bay/ dash.
Does one of you have seen the same issue and can something be done to prevent this.