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VW Code 12866

12866 Description And Summary :

When you open control module defective It could be due to limited air getting through your air intake engine- / transmission control modules, versions do not match also transmission mount valve 1 (n262), open circuit will delay your vw fault.

12866 Possible Causes:

12866 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 12866 Code

  • Inspect all the connections exhaust aftertreatment fuel injector 'a', circuit low
  • 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