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VW Code 04406

04406 Description And Summary :

The instrument cluster alerts the driver to the fault ignition coil 'i' primary control, circuit low It could be due to limited air getting through your air intake oxygen sensor bank 3 sensor 1, voltage too low or change oxygen (lambda) sensor b2 s1, pump current, short to b+ is the final reason of the code.

04406 Possible Causes:

04406 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 1 Injector Circuit Low
  • Engine Shutoff Solenoid Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 04406 Code

  • Inspect all the connections data bus powertrain, missing message from control module level control
  • 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