Zoeken
U0126
Systeem
Network (CAN Bus)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Steering Angle Sensor Module

Understand U0126, common causes, and the right TOPDON scanner to diagnose it.

Steering angle sensor module offline — ESC and EPS may be disabled until calibrated.

Veelvoorkomende symptomen

  • ESC light on
  • Heavy steering feel (EPS)
  • Stability control disabled

Typische oorzaken

  • Clock spring failure
  • SAS module fault
  • Battery disconnect without recalibration

Welke scanner heb je nodig?

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

Gebruik live data en freeze frame voordat je onderdelen vervangt. ABS-, SRS- en U-codes vereisen meestal een full-system scanner.

Diagnosetips

  • Leg freeze frame vast wanneer de code voor het eerst verschijnt
  • Wis de code pas na het oplossen van de oorzaak
  • Controleer op gerelateerde pending codes
  • Controleer of accuspanning boven 12,4 V is voordat je sensoren suspecteert

Aanbevolen TOPDON scanners

Veelgestelde vragen

What does U0126 mean?
U0126 indicates lost communication with steering angle sensor module. Steering angle sensor module offline — ESC and EPS may be disabled until calibrated.
Can I diagnose U0126 with a basic code reader?
U0126 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 U0126?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0126?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.