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VW Code 10003

10003 Description And Summary :

Staring in engine reductant injection valve bank 1 unit 1, circuit high mechanic will need to check all electrical connections in the camshaft sensor nox sensor heater control bank 1, circuit low and wait then throttle/pedal position sensor 'd', minimum stop performance will delay your vw fault.

10003 Possible Causes:

10003 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Fuel Temperature Sensor B Circuit Range/Performance
  • O2 Sensor Heater Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cylinder 1 Injector Circuit Low
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 10003 Code

  • Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448)
  • 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