P0721moderate severityPowertrain
Output Speed Sensor Circuit Range/Performance
on 2002 Ford Explorer 4.0L V6 SOHC · 4WD
What this code means
Output speed sensor signal out of range.
Symptoms
- Erratic speedometer
- Shift problems
Common causes
- Sensor fault
- Tone ring issue
Diagnostic steps
- Compare to wheel speed signals
- Test sensor
Repair notes
Replace sensor.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1