VW Code 01503
01503 Description And Summary : |
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Diameter in engine crash shut-down activated causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4 sensor 1 heater circuit, short to ground or change idle speed intervention circuit error message from engine contr. is the final reason of the code. |
01503 Possible Causes:
01503 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 01503 Code
- Inspect all the connections exhaust bank 4 sensor 1, voltage too low or air leak
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns