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U0231
Sistema
Network (CAN Bus)
Scanner richiesto
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Rain Sensor Module

Understand U0231, common causes, and the right TOPDON scanner to diagnose it.

Rain sensor module offline — auto wipers and sometimes lighting affected.

Sintomi comuni

  • Auto wipers inop
  • Headlight auto mode affected

Cause tipiche

  • Failed rain sensor on windshield
  • CAN wiring
  • Aftermarket windshield without sensor

Di quale scanner hai bisogno?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Usa dati live e freeze frame prima di sostituire componenti. I codici ABS, SRS e U richiedono di solito uno scanner full-system.

Consigli diagnostici

  • Registra il freeze frame quando compare il codice
  • Cancella il codice solo dopo aver risolto la causa
  • Controlla codici pending correlati
  • Verifica che la batteria sia sopra 12,4 V prima di sospettare i sensori

Scanner TOPDON consigliati

Domande frequenti

What does U0231 mean?
U0231 indicates lost communication with rain sensor module. Rain sensor module offline — auto wipers and sometimes lighting affected.
Can I diagnose U0231 with a basic code reader?
U0231 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for U0231?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0231?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.