DTC codes / P2Bxx · Hybrid propulsion / P2BD6
P2BD6 indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for the motor electronics coolant pump 'C'. This pump is typically an auxiliary electric pump used to circulate coolant through the motor electronics (power electronics) cooling loop, and the high voltage suggests a short to power, an open circuit, or a faulty pump control module.
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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