Rain/Light sensor coding missing
â–¶ How to fix
Check LIN communication with the CUV (pin C34). Spare part program the CUV ECU Replace rainsensor.
What you'll see
No driver-visible symptom recorded.
System reaction
The following functions will not work properly: * Automatic wipe * Automatic dipped beam
Diagnostic depth
Detection
The Rain/Light sensor have lost its coding values.
Possible cause
The light function requires a coding of the RLS. Without coding of the windscreen variant (transmission rate), no valid sensor values will be output.