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DTC Detection Logic

NOTE: If DTC P31A9 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to "DTC INDEX ".
DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P31A9 COMMUNICATION ERROR (CAN communication data error) When HPCM detected data error of CAN communication.
  • HPCM
  • Traction motor inverter
  • Li-ion battery controller
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