U0100 — Lost Communication With ECM/PCM "A"

Network (CAN bus, communication)

Lost Communication With ECM/PCM "A"

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Can I drive with U0100?

Drive as little as possible and book an inspection promptly.

Frequently asked questions

What does fault code U0100 mean?

U0100 means Lost Communication With ECM/PCM "A".

Can I keep driving with U0100?

Drive as little as possible and book an inspection promptly.

Related fault codes

  • U0101 — Lost Communication With TCM
  • U0102 — Lost Communication With Transfer Case Control Module
  • U0103 — Lost Communication With Gear Shift Module
  • U0104 — Lost Communication With Cruise Control Module
  • U0105 — Lost Communication With Fuel Injector Control Module
  • U0106 — Lost Communication With Glow Plug Control Module
  • U0107 — Lost Communication With Throttle Actuator Control Module
  • U0108 — Lost Communication With Alternative Fuel Control Module
  • U0109 — Lost Communication With Fuel Pump Control Module

Get a full diagnosis for U0100 with AutoUncover.