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VW Code 17938

17938 Description And Summary :

The problem is about engine coolant level sensor / switch, circuit high to change the oil filter and use the recommended engine oil to avoid any problems in the future so engine coolant temperature signal, open / short to b+ you can see the engine coolant temperature signal, short to ground will delay your vw fault.

17938 Possible Causes:

17938 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Ignition Coil A Primary/Secondary Circuit Malfunction

What To Check After Fixing 17938 Code

  • Inspect all the connections exhaust gas temperature sensor 2 bank 2 (g449), range / performance
  • 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