U0301

Software Incompatibility with ECM/PCM

DTC U0301, sometimes indicated as U030100 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.

  • U0301: Software Incompatibility with ECM/PCM
  • U0301: Software incompatibility – engine control module (ECM)
  • U0301 00: Software incompatibility - engine control module (ECM)

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • SA-011-19a - POWER TRAIN
    MAZDA: Some vehicles may display some (or all) of the following symptoms: check engine light on wit dtc P061B surging on acceleration transmission will not shift past 4th gear various u codes (U0401 abs, U0401, U0415 fsc, U0301, U0316 sbs/mrcc
  • SA-011-19 - POWER TRAIN
    MAZDA: Some vehicles may display some (or all) of the following symptoms: check engine light on wit dtc P061B, surging on acceleration, transmission will not shift past 4th gear, various u codes (U0401 abs, U0401, U0415 fsc, U0301, U0316 sbs/mrcc,
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