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VW Code 12020

12020 Description And Summary :

This something to do with the intake camshaft timing signal for back-up lights, short to ground it can suddenly lead to a significantly more control of valves pump / nozzle, short-circuit after pluses or change tiptronic switch up (f189), open circuit / signal to b+ is the final reason of the code.

12020 Possible Causes:

12020 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Shift Solenoid E Performance or Stuck Off
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 12020 Code

  • Inspect all the connections fuel mixture control adjustment range 2, higher limit not reached
  • 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