Zoeken
U0104
Systeem
Network (CAN Bus)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Cruise Control Module

Understand U0104, common causes, and the right TOPDON scanner to diagnose it.

Adaptive or conventional cruise control module offline.

Veelvoorkomende symptomen

  • Cruise inoperative
  • ACC warning
  • Check engine or other lights

Typische oorzaken

  • Failed cruise module
  • CAN wiring
  • Radar sensor fault on ACC systems
  • Low voltage

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 U0104 mean?
U0104 indicates lost communication with cruise control module. Adaptive or conventional cruise control module offline.
Can I diagnose U0104 with a basic code reader?
U0104 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 U0104?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with U0104?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.