DTC codes / P2Bxx · Hybrid propulsion / P2BDA
P2BDA indicates that the motor electronics coolant temperature sensor B circuit is reporting a voltage below the expected range, which the control module interprets as an excessively low signal. The computer sets this code when the sensor return voltage stays under the calibrated minimum for a set time, typically pointing to a short to ground, an open circuit, or a failed sensor.
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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