DTC codes / P2Bxx · Hybrid propulsion / P2B4A
P2B4A indicates that the powertrain control module has detected an abnormally high voltage on the signal circuit for the Bank 1 B camshaft position actuator position sensor. This sensor reports the actual position of the camshaft phaser, and a high voltage reading typically means the signal circuit is shorted to power or the sensor's internal electronics have failed.
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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