Drive with caution — fix soon.
This code means the engine computer detected a problem with the vehicle speed sensor signal, which tells the car how fast it's going. It usually points to a faulty speed sensor, damaged wiring, or a poor connection, and sometimes a bad sensor signal from a wheel or transmission. It's a common, generally affordable fix that often involves replacing the sensor or repairing wiring.
$110 – $400
Varies by vehicle and root cause.
Usually yes, but be careful. Your speedometer may be inaccurate and cruise control likely won't work, which affects safety. Shifting can also feel off. Drive conservatively and get it checked soon rather than letting it linger.
Most repairs run $110 to $400. Replacing the speed sensor is the most common fix and is fairly affordable, while wiring repairs or a faulty module raise the cost. Diagnosis confirms whether the sensor or the circuit is at fault.
It's moderately serious. The car runs, but losing an accurate speed signal can affect the speedometer, cruise control, and transmission shifting, which has safety implications. It's worth fixing promptly.
The transmission uses vehicle speed to decide when to shift. When that signal is missing or wrong, shift timing gets confused, causing harsh or delayed gear changes. Fixing the speed sensor signal usually restores smooth shifting.