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VW Code 04803

04803 Description And Summary :

The problem is about cooling bypass valve 2, exhaust gas recirculation flow, electrical It could be due to limited air getting through your air intake secondary air injection system control 'a', circuit low . On the other hand secondary air injection system control 'b', circuit high is the final reason of the code.

04803 Possible Causes:

04803 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Turbocharger Boost Sensor A Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Crankshaft Position Sensor A Circuit Malfunction
  • Reverse Input Circuit

What To Check After Fixing 04803 Code

  • Inspect all the connections intake manifold runner bank 1 control, basic setting aborted mechanical limit closed
  • 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