Timeout on the rain/light sensor.
â–¶ How to fix
- check power supply to the rain/light sensor. - check LIN connection to the rain/light sensor (pin C34).
What you'll see
No driver-visible symptom recorded.
System reaction
• Functions dependent on information from rain/light sensor are degraded (examples listed below): - Automatic windscreen wiping - Automatic dipped beam
Diagnostic depth
Detection
Communication error. Communication with the rain/light sensor interrupted.
Possible cause
• Power supply to rain/light sensor has failed • Rain/light sensor disconnected from the LIN bus • Faulty rain/light sensor