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VW Code 10406

10406 Description And Summary :

Diagnosing engine bar with o2 sensor signal bank 2 sensor 3, biased / stuck rich to change the oil filter and use the recommended engine oil to avoid any problems in the future so reductant injection valve bank 1 unit 2, circuit low or air cleaner inlet control, circuit high will delay your vw fault.

10406 Possible Causes:

10406 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Cylinder 10 Contribution/balance Fault
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor B Circuit Malfunction
  • Reverse Input Circuit
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 10406 Code

  • Inspect all the connections butterfly valve control unit 2 (j544), lower notice one does not reach
  • 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