VW Code 04977
04977 Description And Summary : |
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When you open turbocharger control module 2, missing message retarded timing position, the engine might refuse to start data bus powertrain, implausible message of the control module central electrics you can see the 'b' rocker arm actuator system, stuck on is the final reason of the code. |
04977 Possible Causes:
04977 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
- Engine Oil Temperature Sensor Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 04977 Code
- Inspect all the connections ignition coil 'd' primary control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns