U0172
Sistema
Network (CAN Bus)
Scanner richiesto
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Restraints Occupant Classification Module

Understand U0172, common causes, and the right FOXWELL scanner to diagnose it.

Occupant classification sensor module offline — passenger airbag status unknown.

Sintomi comuni

  • Passenger airbag off light
  • Airbag light on

Cause tipiche

  • Failed OCS mat in passenger seat
  • Connector under seat unplugged
  • CAN wiring

Quale scanner ti serve?

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 spesso uno scanner mult sistema.

Consigli diagnostici

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

Scanner FOXWELL consigliati

Domande frequenti

Can I diagnose U0172 with a basic code reader?
U0172 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with U0172?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.