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VW Code 03909

03909 Description And Summary :

When you open fuel shutoff valve "b" control, circuit high It could be due to limited air getting through your air intake coolant fan (v7), open circuit . On the other hand control unit error programming error will delay your vw fault.

03909 Possible Causes:

03909 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Crankshaft Position Sensor A Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 03909 Code

  • Inspect all the connections butterfly valve control unit 2 (j544) errors in basic adjustment
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range