[expay]

Hello,

I am trying to retrofit the rain/light sensor to a Crafter SY. I already installed the wirings and the sensor like in the wiring diagramm of VW.

Pin 1 Sensor -> +12V
Pin 2 Sensor -> Ground
Pin 3 Sensor -> T73d Pin 28

Automatic light switch 4G0 941 431BD

Pin 2 light switch -> T73d Pin 16

The rain sensor works fine, but I have some problems with the light switch. When I set it to automatic I get the Code B126A 29 Signal Implausible. Automatic light does not work. Some coding must be wrong?

Maybe someone can hep me here. I added a full scan via ODIS.

Thanks!

[expay]

Problem solved, coding was correct. The light switch was the problem. New switch installed and now everything works fine.