P0503
Vehicle Speed Sensor A Intermittent/Erratic/High
1997-2003 Audi A8 4.2L V8
Moderate SeverityPowertrainGeneric (SAE)
Description
Intermittent or erratic VSS signal.
Symptoms
- Erratic speedometer
- Random shifts
- Intermittent cruise issues
Common Causes
- Loose connector
- Damaged wiring
- Worn tone ring
- Sensor going bad
Diagnostic Steps
- Wiggle test connector
- Monitor signal stability
- Inspect tone ring
Repair Notes
Repair connector or 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
P0503 on Other Vehicles
Common Questions
What does code P0503 mean on a 1997-2003 Audi A8?
P0503 stands for "Vehicle Speed Sensor A Intermittent/Erratic/High". Intermittent or erratic VSS signal.
What are the symptoms of P0503 on a Audi A8?
Common symptoms of P0503 include: Erratic speedometer, Random shifts, Intermittent cruise issues.
What causes P0503 on a 1997-2003 Audi A8?
Common causes of P0503 include: Loose connector, Damaged wiring, Worn tone ring, Sensor going bad.