U0123
System
Network (CAN Bus)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Yaw Rate Sensor Module

Understand U0123, common causes, and the right TOPDON scanner to diagnose it.

Yaw rate sensor module offline — stability control cannot measure vehicle rotation.

Typowe objawy

  • ESC light on
  • C0462 may accompany

Typowe przyczyny

  • Failed yaw sensor (often in airbag module)
  • CAN wiring
  • Sensor not calibrated after replacement

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 U0123 mean?
U0123 indicates lost communication with yaw rate sensor module. Yaw rate sensor module offline — stability control cannot measure vehicle rotation.
Can I diagnose U0123 with a basic code reader?
U0123 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 U0123?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0123?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.