U0118
Systeem
Network (CAN Bus)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Fuel Injector Control Module

Understand U0118, common causes, and the right FOXWELL scanner to diagnose it.

Fuel injector control module not communicating — common on diesel with separate FICM.

Veelvoorkomende symptomen

  • No-start on diesel
  • Rough running
  • Multiple injector-related codes

Typische oorzaken

  • Failed FICM
  • CAN wiring in engine bay
  • Low voltage during crank
  • Corrosion at FICM connector

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 U0118 with a basic code reader?
U0118 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 U0118?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.