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DTC codes / P0Dxx · Hybrid propulsion / P0D55
P0D55 indicates that the battery charger or hybrid/EV battery output current sensor circuit is reporting an intermittent or erratic signal to the control module. The computer detects this when the current sensor's output voltage or current reading jumps unpredictably or drops out momentarily, rather than following a smooth, expected pattern during charging or discharging.
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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