P0500
Vehicle speed sensor "A" malfunction
The ECU or PCM is not receiving a plausible vehicle-speed signal from the vehicle speed sensor or related speed-data source.
What this code means
The ECU or PCM is not receiving a plausible vehicle-speed signal from the vehicle speed sensor or related speed-data source.
Possible causes
- Failed vehicle speed sensor
- Damaged wiring or connector
- Tone ring or reluctor problem
- ABS/wheel-speed data problem on vehicles that share speed information
Common symptoms
- Check engine light
- Speedometer may be incorrect
- Transmission shifting may be affected
- ABS or traction warnings may also appear
Checks to make
- Check for ABS and transmission codes
- Inspect sensor wiring
- Compare wheel/vehicle speed live data
- Check reluctor or tone ring where applicable
Safety
- Do not replace parts from the code alone. Confirm the fault with live data, wiring checks and manufacturer procedures. Keep clear of hot or moving engine components.
Model notes
The code definition is generic; exact diagnostic thresholds, component locations and repair procedures vary by vehicle.