Drive with caution — fix soon.
This code means the signal from throttle position sensor A is dropping out intermittently rather than failing completely, so the computer sees erratic or interrupted readings. It's most often caused by loose or corroded connectors, chafed wiring, or a sensor that's beginning to fail. Because it's intermittent, finding the exact cause can take some diagnostic time, but it's usually fixable by repairing wiring or replacing the sensor.
$100 – $400
Varies by vehicle and root cause.
Usually yes for short trips, since the fault is intermittent. But the throttle response can cut out unpredictably, so get it diagnosed before it becomes a constant problem.
Typically $100 to $400. Diagnosing an intermittent fault can add some labor time, but the actual repair is often just fixing a connector, wiring, or replacing the sensor.
It's moderately serious. The intermittent nature means symptoms come and go, but unpredictable throttle behavior is worth fixing promptly for safety and to prevent it from worsening.
Because the fault is intermittent, it may not show up while the mechanic is testing. They often need to wiggle wiring or recreate vibration and temperature conditions to catch the dropout.