P0500moderate severityPowertrain
Vehicle Speed Sensor A
on 2009 Mazda MX-5 Miata 2.0L I4 · RWD
What this code means
Malfunction in the vehicle speed sensor (VSS) circuit.
Symptoms
- Check Engine Light
- Speedometer not working
- Erratic shifting
- Cruise control inoperative
- ABS light on
Common causes
- Faulty VSS
- Wiring damage
- Tone ring damage
- PCM issue
- Instrument cluster issue
Diagnostic steps
- Test VSS output signal
- Inspect wiring
- Check tone ring
- Monitor speed signal with scan tool
Repair notes
Replace VSS. Check transmission output shaft sensor on automatic trans vehicles.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1