Drive with caution — fix soon.
This code means the engine computer detected that engine speed (RPM) exceeded its safe maximum. It can be caused by an over-aggressive downshift, a throttle or throttle position sensor fault, a sticking throttle, or a sensor reading error. Repairs depend on the cause and usually start with checking the throttle system and related sensors.
$100 – $450
Varies by vehicle and root cause.
Usually yes, but drive gently and avoid hard acceleration. Repeated over-revving can stress the engine, so get it checked soon to find the cause.
Repairs typically run between $100 and $450, depending on whether it's a sensor, throttle component, or wiring issue. Diagnosis helps avoid replacing the wrong part.
It's moderate. A one-time event from a hard downshift may be harmless, but if it keeps happening or points to a throttle fault, it should be repaired to protect the engine.
It can come from a too-aggressive downshift, a sticking throttle, or a faulty sensor reading. Identifying which one prevents over-revving from happening again.