VW Code 03900
03900 Description And Summary : |
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This code were stamped on VW Engine case cooling bypass valve, exhaust gas recirculation flow, electrical it can suddenly lead to a significantly more intake air heater "a", circuit range / performance . On the other hand shift lock, open will delay your vw fault. |
03900 Possible Causes:
03900 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
- Injector Circuit Malfunction - Cylinders
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 03900 Code
- Inspect all the connections throttle actuator control system, ice blockage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns