VW Code 03975
03975 Description And Summary : |
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Diameter in engine nox sensor heater control bank 1, circuit high mechanic will need to check all electrical connections in the camshaft sensor 'b' rocker arm actuator control, circuit high or evaporative emission system leak detection pump sense, circuit range / performance is the final reason of the code. |
03975 Possible Causes:
03975 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Reverse Input Circuit
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 03975 Code
- Inspect all the connections turbo/super charger over-boost condition
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns