Drive with caution — fix soon.
This code means the voltage signal from turbocharger boost sensor B is lower than expected, usually pointing to a short to ground, a wiring fault, or a failed sensor. A disconnected or corroded connector can also cause it. It's a common turbo code and is typically fixed by repairing the wiring or replacing the boost sensor.
$100 – $400
Varies by vehicle and root cause.
Short trips are usually fine, but the car may feel weak as it limits power for protection. Avoid hard acceleration and towing, and have it diagnosed soon.
Usually $100 to $400. A straightforward sensor swap is cheaper, while tracking down a wiring short or harness damage adds labor.
It's moderate. You probably won't be stranded right away, but ongoing reduced power isn't ideal, so don't ignore it for long.
No. A low signal can come from the sensor or from a wiring short to ground, a bad connector, or a missing reference voltage, so the circuit should be tested before replacing the sensor.