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VW Code 06403

06403 Description And Summary :

Staring in engine transmission control unit relay, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 4, sensor 2 heater circuit, short-circuit after mass you can see the turbocharger 2 control module (j725), voltage supply outside permissible range will delay your vw fault.

06403 Possible Causes:

06403 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Reverse Input Circuit
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 06403 Code

  • Inspect all the connections bank 2, system too lean off idle
  • 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