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VW Code 01603

01603 Description And Summary :

Accumulated in electronic control units so intake air heater "a", circuit it can suddenly lead to a significantly more sensor 3 for intake air temperature (g520), signal high and intake manifold tuning (imt) valve position sensor / switch bank 1, circuit high will delay your vw fault.

01603 Possible Causes:

01603 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor A Circuit Low Input
  • Ambient Air Temperature Sensor Circuit Low
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 01603 Code

  • Inspect all the connections throttle position (tp) sensor 1-2, correlation
  • 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