U0133
System
Network (CAN Bus)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Active Roll Control Module

Understand U0133, common causes, and the right FOXWELL scanner to diagnose it.

Active anti-roll or suspension control module offline on luxury SUVs and performance vehicles.

Vanliga symptom

  • Suspension warning
  • Handling feels different
  • Multiple chassis U-codes

Typiska orsaker

  • Failed ARC module
  • CAN wiring to suspension
  • Low voltage
  • Aftermarket suspension wiring conflict

Vilken scanner behöver du?

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

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade FOXWELL-scannrar

Vanliga frågor

Can I diagnose U0133 with a basic code reader?
U0133 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with U0133?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.