VW Code 09940
09940 Description And Summary : |
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Diagnosing engine bar with transmission control unit (j217), programming error the system depends on oil pressure to switch between cam profiles data bus powertrain, missing messages from steering wheel electronics (j527) also engine oil temperature sensor (g8), circuit range / performance will delay your vw fault. |
09940 Possible Causes:
09940 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail/System Pressure - Too High
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 1 Injector Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Reverse Input Circuit
What To Check After Fixing 09940 Code
- Inspect all the connections transmission control unit relay, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns