Drive with caution — fix soon.
This code means the second throttle or pedal position sensor (sensor B) signal is cutting out or fluctuating on and off, rather than failing steadily. It's most often caused by a loose or corroded connector, a chafed wire, or a sensor that's starting to fail intermittently. Diagnosis involves wiggle-testing the wiring and connectors to find the break, and repairs are usually limited to the wiring or sensor.
$100 – $400
Varies by vehicle and root cause.
Usually yes for short trips, but the intermittent nature means power could drop unexpectedly. Because it's hard to predict, it's smart to get it diagnosed soon rather than risk it acting up at a bad moment.
Costs generally fall between $100 and $400. Tracking down an intermittent wiring or connector issue can take diagnostic time, while a failing sensor replacement is more straightforward.
It's a moderate concern. The car often drives normally, but unpredictable throttle behavior is a safety issue, so it's worth addressing before it becomes constant.
Because the fault isn't always present, the problem can be hard to catch when the car is on the lift. Mechanics often wiggle-test wiring and connectors to recreate the dropout and pinpoint the cause.