Szukaj
C0221
System
Chassis (ABS / Stability)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Right Front Wheel Speed Sensor Signal Missing

Understand C0221, common causes, and the right TOPDON scanner to diagnose it.

No signal from the right front wheel speed sensor — ABS cannot monitor that wheel.

Typowe objawy

  • ABS light
  • Traction control off
  • May set with C0033/C0040

Typowe przyczyny

  • Open sensor circuit
  • Failed sensor
  • Broken tone ring
  • Hub bearing damage affecting sensor gap

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 C0221 mean?
C0221 indicates right front wheel speed sensor signal missing. No signal from the right front wheel speed sensor — ABS cannot monitor that wheel.
Can I diagnose C0221 with a basic code reader?
C0221 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 C0221?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with C0221?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.