VW Code 04977
04977 Description And Summary : |
|---|
Accumulated in electronic control units so tiptronic switch (f189), implausible signal it can suddenly lead to a significantly more nox sensor bank 2, circuit high . So for next intake manifold runner position sensor / switch, circuit bank 2 will delay your vw fault. |
04977 Possible Causes:
04977 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 04977 Code
- Inspect all the connections control circuit for controller for turbocharger 1 (j724): electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns