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U0124
System
Network (CAN Bus)
Benötigter Scanner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Lateral Accelerometer Module

Understand U0124, common causes, and the right TOPDON scanner to diagnose it.

Lateral G-sensor not communicating — ESC uses this with yaw rate.

Häufige Symptome

  • Stability control disabled
  • Multiple chassis codes

Typische Ursachen

  • Failed sensor in SDM/suspension module
  • CAN fault
  • Low voltage

Welchen Scanner brauchen Sie?

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

Nutzen Sie Live-Daten und Freeze Frame, bevor Sie Teile tauschen. ABS-, SRS- und U-Codes erfordern meist einen Vollsystem-Scanner.

Diagnose-Tipps

  • Freeze Frame erfassen, wenn der Code erstmals gesetzt wird
  • Code erst nach Behebung der Ursache löschen
  • Auf verwandte pending codes prüfen
  • Batteriespannung über 12,4 V prüfen, bevor Sie Sensoren verdächtigen

Empfohlene TOPDON Scanner

Häufig gestellte Fragen

What does U0124 mean?
U0124 indicates lost communication with lateral accelerometer module. Lateral G-sensor not communicating — ESC uses this with yaw rate.
Can I diagnose U0124 with a basic code reader?
U0124 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 U0124?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0124?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.