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DTC codes / P0Dxx · Hybrid propulsion / P0D31
P0D31 indicates that the inverter responsible for converting direct current to alternating current for drive motor A has reported an intermittent or erratic signal from its voltage sensor A circuit. The computer detects this when the voltage reading from that sensor jumps, drops out, or becomes inconsistent in a way that does not match expected operating conditions.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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