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DTC Detection Logic

NOTE: This DTC shows a forced system main relay disconnection by fail-safe.
DTC Trouble diagnosis name DTC detecting condition Possible cause
P31DE HV BATT MAIN RELAY When the system main relay is shut off, VCM accumulates high voltage current value, and the accumulated value reaches the specified value.
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  • Li-ion battery system
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  • DC/DC-J/B
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  • VCM system
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