VW Code 12847
12847 Description And Summary : |
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Staring in engine nox sensor heater control bank 2, circuit / open It could be due to limited air getting through your air intake cylinder 4 above knock threshold or change butterfly valve control unit 2 (j544) errors in basic adjustment is the final reason of the code. |
12847 Possible Causes:
12847 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 10 Contribution/balance Fault
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injector Circuit Malfunction - Cylinders
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 12847 Code
- Inspect all the connections secondary air injection pump-d-relay (j705), circuit 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