Szukaj
U0120
System
Network (CAN Bus)
Wymagany skaner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Electric Power Steering (EPAS) Module

Understand U0120, common causes, and the right TOPDON scanner to diagnose it.

Electric power steering module not on the network — steering assist may be lost.

Typowe objawy

  • Heavy steering
  • EPS warning
  • Stability control affected

Typowe przyczyny

  • Failed EPAS module
  • CAN wiring to steering rack
  • Low battery
  • Blown EPS fuse

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 U0120 mean?
U0120 indicates lost communication with electric power steering (epas) module. Electric power steering module not on the network — steering assist may be lost.
Can I diagnose U0120 with a basic code reader?
U0120 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 U0120?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0120?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.