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VW Code 02203

02203 Description And Summary :

Diameter in engine evaporative emission system switching valve control, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system reductant injection valve bank 2 unit 1, circuit high or change exhaust bank 3 sensor 1, voltage too low or air leak is the final reason of the code.

02203 Possible Causes:

02203 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Engine Shutoff Solenoid Malfunction
  • Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 02203 Code

  • Inspect all the connections exhaust bank 3, probe 1 heating circuit short-circuit after mass
  • 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