P0721 Kia Output Speed Sensor Range/Performance
Possible causes
– Faulty Speed Sensor
– Speed Sensor harness is open or shorted
– Speed Sensor circuit poor electrical connection
– Speed Sensor harness is open or shorted
– Speed Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Speedometer improper reading
– Possible shifting problems
– Speedometer improper reading
– Possible shifting problems
P0721 Kia Description
The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.
Kia Vehicle:Kia Amanti,Kia Borrego,Kia Forte,Kia Optima,Kia Rio,Kia Rondo,Kia Sedona,Kia Sorento,Kia Spectra,Kia Sportage,Kia Sorento,Kia KM420,Kia Cadenza,Kia Picanto,Kia Borrego,Kia Forte