Demco Tow Controller Issues 2023 Navion 24D

[Kenkarast28]

Hi,
2023 Navion 24D on a 2021 Merc VS chassis. Just had a Demco Dou tow controller system installed in a 2023 Jeep Rubicon. Everything seems to work as designed except for two items:
1. Error messages show on the Sprinter dash screen saying there are various “trailer light” failures when , in fact, the Jeep lights are mirroring the RV’s. The When a turn signal is selected I notice the dask indicatuin is more rapid than usual, while the actual blinker interval on the Jeep and RV seems normal.
2. The Demco remote brake indicator does not show that brakes are being applied. It has power, and it “feels” like the Jeep brakes are being applied, but the indicator does nothing (green power light is “on”). Thx!