U0105
Sistema
Network (CAN Bus)
Escáner necesario
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Fuel Injector Control Module

Understand U0105, common causes, and the right FOXWELL scanner to diagnose it.

Fuel injector control module offline on some diesel or multi-ECU gasoline platforms.

Síntomas habituales

  • No-start or limp mode
  • Multiple U-codes

Causas típicas

  • Failed injector driver module
  • CAN wiring in engine bay
  • Low voltage
  • Blown fuse

¿Qué escáner necesita?

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

Use datos en vivo y freeze frame antes de cambiar piezas. Códigos ABS, SRS y U suelen requerir un escáner de todos los sistemas.

Consejos de diagnóstico

  • Registre el freeze frame cuando se active el código
  • Borre el código solo tras corregir la causa
  • Revise códigos pendientes relacionados
  • Verifique que la batería esté por encima de 12,4 V antes de sospechar sensores

Escáneres FOXWELL recomendados

Preguntas frecuentes

Can I diagnose U0105 with a basic code reader?
U0105 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 U0105?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.