Output Speed Sensor Circuit Range/Performance
1998-1998 Aston Martin DB7 3.2L I6 Supercharged
The 1998 Aston Martin DB7 is equipped with a 3.2L inline-6 engine. Below you'll find detailed p0721 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0721 on Other Vehicles
Aston Martin DB11
2016-2016 4.0L V8 Twin Turbo
Aston Martin DB11
2016-2016 5.2L V12 Twin Turbo
Aston Martin DB11
2017-2017 4.0L V8 Twin Turbo
Aston Martin DB11
2017-2017 5.2L V12 Twin Turbo
Aston Martin DB11
2018-2018 4.0L V8 Twin Turbo
Aston Martin DB11
2018-2018 5.2L V12 Twin Turbo
Aston Martin DB11
2019-2019 4.0L V8 Twin Turbo
Aston Martin DB11
2019-2019 5.2L V12 Twin Turbo
Common Questions
What does code P0721 mean on a 1998-1998 Aston Martin DB7?
P0721 stands for "Output Speed Sensor Circuit Range/Performance". Output speed sensor signal out of range.
What are the symptoms of P0721 on a Aston Martin DB7?
Common symptoms of P0721 include: Erratic speedometer, Shift problems.
What causes P0721 on a 1998-1998 Aston Martin DB7?
Common causes of P0721 include: Sensor fault, Tone ring issue.
Last updated: March 2026