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B1651
System
Supplemental Restraint (Airbag)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Occupant Classification System Not Learned

Understand B1651, common causes, and the right TOPDON scanner to diagnose it.

OCS zero-point or calibration not completed after service.

Typowe objawy

  • Passenger airbag always off
  • Airbag light on

Typowe przyczyny

  • Seat service without calibration
  • New OCS mat not programmed
  • Battery disconnect sequence skipped

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 B1651 mean?
B1651 indicates occupant classification system not learned. OCS zero-point or calibration not completed after service.
Can I diagnose B1651 with a basic code reader?
B1651 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 B1651?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with B1651?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.