Drive with caution — fix soon.
This code means the engine computer detected a problem with the high-resolution timing reference signal, a precise input it uses to control ignition and fuel timing. It often points to a faulty crankshaft or camshaft position sensor, damaged wiring, or a problem with the sensor's reluctor ring. It's a moderately common code and is usually fixed by replacing the failing sensor and checking related wiring.
$150 – $450
Varies by vehicle and root cause.
Often yes for short distances, but get it checked soon. The timing signal affects how the engine runs, so you may notice stalling or rough idling. If the engine cuts out or struggles to start, drive carefully and head straight to a shop.
Repairs usually run between $150 and $450. A position sensor and labor make up most of the cost. The total can rise if the wiring, connector, or reluctor ring also needs repair, since those take more time to access.
It's moderately serious. The car may still drive, but the faulty timing signal can cause stalling or starting problems that get worse over time. It's best to diagnose and repair it before it leaves you stuck.
It's a finely detailed signal, usually from a crankshaft or camshaft sensor, that tells the computer exactly where the engine is in its cycle. The engine uses it to time the spark and fuel precisely, so a fault can make the engine run unevenly.