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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 Trouble diagnosis name DTC detecting condition Possible cause
P31D4 PRE CHARGE RELAY After operating the power switch from OFF to READY, the voltage of a pre-charge relay monitor signal remains HIGH for 0.2 seconds or more.
  • Harness or connectors
  • Li-ion battery J/B
  • VCM
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