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VW Code 05621

05621 Description And Summary :

Diagnosing engine bar with supply voltage for fuel injector group a, short to ground retarded timing position, the engine might refuse to start ignition coil cylinder 16, low circuit or change fuel additive control module requested mil illumination is the final reason of the code.

05621 Possible Causes:

05621 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Turbocharger Boost Sensor A Circuit Low
  • Crankshaft Position Sensor A Circuit Low Input
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 05621 Code

  • Inspect all the connections load signal stuck on
  • 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