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DTC codes / P2Bxx · Hybrid propulsion / P2B4A

P2B4AB Camshaft Position Actuator Position Sensor B Circuit High Bank 1

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.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaHybrid propulsion

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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