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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTING CONDITION AND POSSIBLE CAUSES

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P312A COMMUNICATION ERROR CAN communication of the EV system CAN connecting unit does not stop for 25.5 seconds or more immediately before the VCM self shut OFF.
  • Harness or connectors
  • LBC
  • Traction motor inverter
  • On board charger
  • Electric shift control module
  • A/C auto amp.
  • TCU
  • VCM