VW Code 00401
00401 Description And Summary : |
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Accumulated in electronic control units so generator lamp/l-terminal, circuit high it can suddenly lead to a significantly more pressure control valve 4 (n218), short to plus or change hc adsorption catalyst efficiency below threshold bank 1 is the final reason of the code. |
00401 Possible Causes:
00401 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Engine Oil Temperature Sensor Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 00401 Code
- Inspect all the connections linear oxygen sensor exhaust bank 2 / pump current, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns