Drive with caution — fix soon.
This code means the fuel temperature sensor B circuit is reading lower voltage than expected, which usually corresponds to a signal stuck low or shorted to ground. The cause is often a failed sensor, a wiring short, or a bad connection in the circuit. It's commonly fixed by repairing the wiring or replacing the sensor after testing, and rarely requires major engine work.
$120 – $350
Varies by vehicle and root cause.
For short trips, usually yes, since it's a sensor signal issue rather than a breakdown. Just get it checked soon, especially if the engine runs rough or starts hard.
Expect roughly $120 to $350 in most cases. The bigger factor is whether the fault is in the sensor or in the wiring, which can add some labor time.
It's typically low-to-moderate in severity. It won't usually leave you stranded, but the inaccurate reading can affect fuel management, so it's worth fixing promptly.
Low input often means the signal is shorted to ground or stuck low, but it can also be a wiring or connector problem. A mechanic will test the circuit before deciding whether to replace the sensor.