U0133
Systeem
Network (CAN Bus)
Scanner vereist
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.

Veelvoorkomende symptomen

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

Typische oorzaken

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

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 FOXWELL scanners

Veelgestelde vragen

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.