Code result
P2B4C
B Camshaft Position Actuator Position Sensor B Range/Performance Bank 2
High severity
What it means
The position sensor B of the camshaft position actuator on the exhaust side of bank 2 reports a range/performance condition. Cam phasing position cannot be measured reliably.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor offset drifted
highOne of the most commonly reported causes for this code — check this first.
Actuator mechanism worn
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2B4C freeNo credit card required