P0721 2002 FORD F150 - Noise interference on Output Shaft Speed Sensor Signal
P0721 2002 FORD F150 Possible Causes
- Faulty Speed Sensor
- Speed Sensor harness is open or shorted
- Speed Sensor circuit poor electrical connection
- After market add-on
- Wiring misrouted
First diagnose P0721 2002 FORD F150 code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
P0721 2002 FORD F150 Tech NotesThe output shaft speed sensor signal is very sensitive to noise. This noise distorts the input to the PCM.
Cost of diagnosing the P0721 2002 FORD F150 code
Labor: 1.0The cost of diagnosing the P0721 2002 FORD F150 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0721 2002 FORD F150 code detected?Vehicle speed sensor above 1 MPH and the ECM detected noise interference from the output speed sensor
P0721 2002 FORD F150 Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Speedometer improper reading
- Possible shifting problems
P0721 2002 FORD F150 MeaningThe 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.
P0721 2002 FORD F150 More InformationNeed more information on how to fix the P0721 2002 FORD F150 code?
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