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VW Code 05638

05638 Description And Summary :

The problem is about fuel cap sensor / switch, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system charging system, voltage high and wait then secondary air injection valve 4 (n385), circuit electrical malfunction is the final reason of the code.

05638 Possible Causes:

05638 vw fault code may be caused by one or more of the following:

  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Rail/System Pressure - Too High
  • O2 Sensor Heater Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 05638 Code

  • Inspect all the connections turbocharger control module 2, implausible message
  • 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