Drive with caution — fix soon.
This code means the computer is reading an abnormally high voltage signal from throttle position sensor A, the part that reports how far the throttle is open. It's typically caused by a failing throttle position sensor, a wiring short to power, or a bad connection in the circuit. Repairs usually involve fixing wiring or replacing the sensor, and it's a common, fixable issue.
$100 – $400
Varies by vehicle and root cause.
Short trips are usually okay, but it's not ideal. The car may surge or lose power unexpectedly, so avoid highway driving and get it checked promptly to stay safe.
Expect roughly $100 to $400. Repairing wiring or a connector is cheaper, while replacing the throttle position sensor or throttle body raises the cost depending on the vehicle.
It's moderately serious. It rarely leaves you stranded immediately, but unpredictable throttle behavior and possible limp mode mean it should be repaired soon for safe, smooth driving.
Usually a sensor wire shorted to power, a failing throttle position sensor, or a bad connector that pushes the voltage reading too high. A mechanic can test the circuit to pinpoint which one it is.