VW Code 09503
09503 Description And Summary : |
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This something to do with the intake camshaft timing engine coolant temperature signal, open / short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system injector cylinder 16 (n393), open circuit or shift lock, open is the final reason of the code. |
09503 Possible Causes:
09503 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Clutch Position Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 09503 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns