DTC codes / P2Bxx · Hybrid propulsion / P2BA2
P2BA2 indicates the engine control module has detected that the engine coolant pump is stuck or stalled, meaning the pump is not rotating as commanded or is drawing abnormal current. The module monitors pump operation through feedback signals and sets this code when the pump fails to respond or reports a locked rotor condition.
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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