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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid Control System >> DTC/Circuit Diagnosis >> DTC P311F: Pre-Charge Relay >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P311F PRE CHARGE RELAY When HPCM detects traction motor inverter (Pre-charge voltage abnormality) When HPCM detects traction motor inverter voltage is more than 100V during pre-charge.
  • DC/DC converter
  • Lithium ion battery ground circuit is open