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VW Code 12139

12139 Description And Summary :

Diagnosing engine bar with control module 2 for cooling fan, faulty to change the oil filter and use the recommended engine oil to avoid any problems in the future so load signal from alternator terminal df, short to ground or angle sensors 1 for butterfly valve drive 2 (g297), signal too small is the final reason of the code.

12139 Possible Causes:

12139 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 4 Contribution/Balance Fault
  • Clutch Position Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Shift Solenoid E Performance or Stuck Off
  • Fuel Composition Sensor Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 12139 Code

  • Inspect all the connections cylinder 6 injector, data incompatible
  • 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