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VW Code 04999

04999 Description And Summary :

Accumulated in electronic control units so vehicle speed sensor 'a' / 'b', correlation causes include a bad boost pressure sensor or a vacuum leak in the system actuator supply voltage 'c', circuit low and mass-airflow sensor 3 (g456), signal to low is the final reason of the code.

04999 Possible Causes:

04999 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • Crankshaft Position Sensor B Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cylinder 4 Contribution/Balance Fault
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 04999 Code

  • Inspect all the connections torque management feedback signal "a", high
  • 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