Szukaj
U0172
System
Network (CAN Bus)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Restraints Occupant Classification Module

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

Occupant classification sensor module offline — passenger airbag status unknown.

Typowe objawy

  • Passenger airbag off light
  • Airbag light on

Typowe przyczyny

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

Jakiego skanera potrzebujesz?

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

Użyj danych na żywo i freeze frame przed wymianą części. Kody ABS, SRS i U zwykle wymagają skanera full-system.

Wskazówki diagnostyczne

  • Zapisz freeze frame, gdy pojawi się kod
  • Kasuj kod dopiero po usunięciu przyczyny
  • Sprawdź powiązane kody pending
  • Sprawdź, czy napięcie akumulatora jest powyżej 12,4 V przed podejrzeniem czujników

Polecane skanery TOPDON

Często zadawane pytania

What does U0172 mean?
U0172 indicates lost communication with restraints occupant classification module. Occupant classification sensor module offline — passenger airbag status unknown.
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.
Which TOPDON scanner do I need for U0172?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
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.