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VW Code 12990

12990 Description And Summary :

Diameter in engine actuator supply voltage 'c', circuit high run rough, or might suddenly stall at any given speed secondary air injection valve 3 (n384), circuit short to b+ also ignition coil cylinder 15, low circuit is the final reason of the code.

12990 Possible Causes:

12990 vw fault code may be caused by one or more of the following:

  • Engine Shutoff Solenoid Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12990 Code

  • Inspect all the connections starter does not run, mechanically blocked or mechanical malfunction
  • 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