CAR OBD CODES

P0721 OBD Code Definition:
P0721 Output Speed Sensor Range/Performance
P0721 OBD Code Description:

OBD2 Code P0721 Definition:
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. Symptoms

Possible sumptoms of P0721
– Engine Light ON (or Service Engine Soon Warning Light) – Speedometer improper reading – Possible shifting problems Possible Causes

Possible causes of P0721
– Speed sensor harness or connectors – Sensor circuit is open or shorted – Speed sensor Possible Solutions

Note: The information on the P0721 error code is purely informative, if you need more useful information, please consult your technician.