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VW Code 00939

00939 Description And Summary :

When you open coolant degassing valve, control circuit low It could be due to limited air getting through your air intake control module defect also exhaust gas temperature sensor, bank 1 sensor 5, circuit high will delay your vw fault.

00939 Possible Causes:

00939 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Cold Start Injector 1 Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 00939 Code

  • Inspect all the connections ignition switch accessory position, circuit high
  • 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