Drive with caution — fix soon.
This code means the engine computer is seeing a vehicle speed sensor signal that's too low, often near zero, while the car is actually moving. It usually points to a failed speed sensor, an open or shorted wire, or a poor ground connection. It's typically fixable by replacing the sensor or repairing the wiring, and it rarely involves major mechanical work.
$110 – $400
Varies by vehicle and root cause.
Usually yes, but with caution. Your speedometer may read low or zero and cruise control likely won't work, which affects safety. Shifting can also feel rough. Drive carefully and have it checked soon.
Most repairs cost $110 to $400. Replacing the speed sensor is the usual and most affordable fix, while wiring or ground repairs can add to the bill. A diagnosis confirms whether it's the sensor or the circuit.
It's moderately serious. The car still runs, but a low or missing speed signal affects the speedometer, cruise control, and shifting, all of which have safety implications. It's worth fixing soon.
A low-input code means the speed signal is too weak or near zero, often from a failed sensor or a broken wire. Since the speedometer relies on that signal, it can stay at zero even while you're driving until the sensor or wiring is repaired.