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VW Code 12477

12477 Description And Summary :

Diagnosing engine bar with ng high pressure valve (n372), short to b+ retarded timing position, the engine might refuse to start pressure control solenoid 4 (n218), open / short to ground also valve for engine storage (n144/145), interruption / short-circuit after mass is the final reason of the code.

12477 Possible Causes:

12477 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Cylinder 1 Injector Circuit Low
  • O2 Sensor Heater Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 12477 Code

  • Inspect all the connections exhaust gas temperature sensor 2 bank 2 (g449), short to ground
  • 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