Network fault codes

44 documented codes across 1 functional groups.

Communication faults, a module that stopped answering on the CAN bus, or sent implausible data. Often a symptom of a power or wiring problem rather than a failed module.

44 documented codes across 1 functional group.

By what part of the vehicle

  • Bus communication, 44 codes

The ones we see most

  • U0416, Invalid data received from vehicle dynamics control module
  • U0401, Invalid data received from ECM/PCM A
  • U0121, Lost communication with ABS control module
  • U0100, Lost communication with ECM/PCM A
  • U029D, not individually documented
  • U0167, Lost communication with immobiliser control module
  • U0155, Lost communication with instrument panel cluster
  • U0064, not individually documented
  • U201F, not individually documented
  • U0252, not individually documented
  • U0422, not individually documented
  • U0484, not individually documented
  • U0019, Low speed CAN communication bus
  • U0103, Lost communication with gear shift module
  • U0415, Invalid data received from ABS control module
  • U0428, Invalid data received from steering angle sensor module
  • U2105, not individually documented
  • U0114, not individually documented
  • U016B, not individually documented
  • U0102, Lost communication with transfer case control module
  • U0132, Lost communication with ride level control module
  • U0164, Lost communication with HVAC control module
  • U0400, Invalid data received
  • U0402, Invalid data received from transmission control module