P0720
Powertrain Codes
P0720 - FORD - Output Speed Sensor Insufficient Input
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light) - Speedometer improper reading - Possible shifting problems
Possible Causes
- Speed sensor harness or connectors - Sensor circuit is open or shorted - Speed sensor
When Detected
Vehicle speed sensor over 1 MPH while the output speed sensor signal did not agree
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.