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VW Code 03556

03556 Description And Summary :

Diameter in engine fuel injection valve 4 (n369), short to ground causes include a bad boost pressure sensor or a vacuum leak in the system fuel injection valve 1 (n366), open circuit . On the other hand reductant injection valve circuit range / performance, bank 2 unit 1 is the final reason of the code.

03556 Possible Causes:

03556 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Engine Oil Temperature Sensor Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 03556 Code

  • Inspect all the connections ignition coil cylinder 16, low 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