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Home >> Mazda >> 2016 >> 3 Sport, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> On-Board Diagnostics - Transmission Control System >> DTC U0115-00: COMMUNICATIO1N Error To Pcm (Local Can Between TCM And Pcm) >> Notes
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DTC U0115-00: COMMUNICATIO1N Error To Pcm (Local Can Between TCM And Pcm): Notes

DTC U0115:00 Communicatio1n error to PCM (local CAN between TCM and PCM)
DETECTION CONDITION 
  • Under the following condition, the TCM cannot receive the signal from PCM (local CAN between TCM and PCM)
    • Battery voltage is 10 V or more  .

    Diagnostic support note 

  • The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
  • The automatic transaxle warning light does not illuminate.
  • PENDING CODE is available.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the TCM memory.
FAIL-SAFE FUNCTION 
  • Set to TCC control.
  • Inhibits learning control.
  • Inhibits manual mode.
  • Inhibits neutral idle control.
  • Inhibits AAS.
  • Inhibits 5GR and 6GR.
  • Inhibits shift down when the accelerator pedal is depressed.
POSSIBLE CAUSE 
  • PCM DTC is stored.
  • PCM malfunction
  • TCM malfunction
SYSTEM WIRING DIAGRAM  Not applicable