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VW Code 18979

18979 Description And Summary :

Accumulated in electronic control units so glow plug/heater relay 2 circuit, short to b+ to change the oil filter and use the recommended engine oil to avoid any problems in the future so tiptronic switch down, circuit short to ground . So for next o2 sensor reference voltage bank 2 sensor 1, circuit low is the final reason of the code.

18979 Possible Causes:

18979 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Cold Start Injector 1 Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 18979 Code

  • Inspect all the connections pre-catalyst exhaust bank 3 effect too small
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range