U0112
Systeem
Network (CAN Bus)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Battery Energy Control Module

Understand U0112, common causes, and the right FOXWELL scanner to diagnose it.

Hybrid or EV battery management module offline — high-voltage system may not enable.

Veelvoorkomende symptomen

  • Ready mode unavailable
  • Hybrid system warning
  • Multiple U-codes

Typische oorzaken

  • Failed BMS module
  • CAN wiring to battery pack
  • Low 12V auxiliary battery
  • Service plug not reset after HV work

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 U0112 with a basic code reader?
U0112 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 U0112?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.