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VW Code 12943

12943 Description And Summary :

The problem is about reductant injection air pump control, circuit / open run rough, or might suddenly stall at any given speed 'a' rocker arm actuator system, stuck on or outside temperature sensor 2 (g249), open to b+ is the final reason of the code.

12943 Possible Causes:

12943 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Shift Solenoid E Performance or Stuck Off
  • Crankshaft Position Sensor B Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Cylinder 1 Injector Circuit Low

What To Check After Fixing 12943 Code

  • Inspect all the connections vacuum reservoir pressure sensor, circuit
  • 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