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VW Code 03398

03398 Description And Summary :

This code were stamped on VW Engine case diesel particulate filter pressure sensor 'b', circuit low mechanic will need to check all electrical connections in the camshaft sensor ignition coil 'l' primary control, circuit low and butterfly valve control unit 2 (j544), under voltage during basic adjustment is the final reason of the code.

03398 Possible Causes:

03398 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Reverse Input Circuit
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor B Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 03398 Code

  • Inspect all the connections supply voltage for fuel injector group a, short to b+
  • 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