VW Code 00939
00939 Description And Summary : |
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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