Code result
P2BFC
Exhaust Flow Control Valve B Position Circuit
High severity
What it means
The exhaust flow control valve B reports a position circuit condition. Exhaust routing for back-pressure or noise control cannot be commanded 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
Position sensor failed
highOne of the most commonly reported causes for this code — check this first.
Wiring or connector fault
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2BFC freeNo credit card required