What does code P2B4B mean?

DTC codes / P2Bxx · Hybrid propulsion / P2B4B

P2B4BB Camshaft Position Actuator Position Sensor B Circuit Bank 2

P2B4B indicates that the powertrain control module (PCM) has detected an abnormal signal from the 'B' camshaft position actuator position sensor on bank 2, which monitors the actual position of the camshaft phaser. The PCM compares this signal with the commanded target and sets the code when the two do not match within a calibrated range.

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.