Drive with caution — fix soon.
This code means the engine computer detected a problem in the 'B' circuit of the throttle or accelerator pedal position sensor, which reports how far the throttle or pedal is pressed. A fault is usually caused by a bad sensor, damaged wiring, or poor connections, and it can put the car into a reduced-power safety mode. Repairs typically involve testing the sensor circuit and replacing the sensor or repairing the wiring.
$120 – $500
Varies by vehicle and root cause.
Often yes, but the car may enter reduced-power mode and respond poorly to the gas pedal. That can be unsafe in traffic, so get it checked soon.
Repairs usually cost between $120 and $500, depending on whether it's a wiring fix or a sensor or throttle body replacement. Diagnosis confirms the exact cause.
It's moderate. The car usually still runs, but reduced power and poor throttle response can affect safety, so it shouldn't be left unaddressed.
When the throttle position signal is unreliable, the computer often limits power to stay safe. Fixing the sensor or wiring restores normal throttle response.