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VW Code 12057

12057 Description And Summary :

The instrument cluster alerts the driver to the fault reductant temperature sensor, circuit range / performance it can suddenly lead to a significantly more control module defective also ignition switch run/start position, circuit low is the final reason of the code.

12057 Possible Causes:

12057 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 12057 Code

  • Inspect all the connections turbocharger boost control position sensor, circuit range / performance
  • 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