What does code P34B0 mean?

DTC codes / P34xx · Auxiliary emission controls / P34B0

P34B0A Camshaft Position Actuator Position Sensor A Circuit Bank 2

P34B0 indicates that the engine control module (ECM) has detected an electrical fault in the circuit for the bank 2 camshaft position actuator position sensor A. This sensor reports the actual position of the camshaft phaser, and the ECM sets the code when the signal voltage is outside the expected range or inconsistent with commanded timing.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.