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VW Code 28543

28543 Description And Summary :

Diagnosing engine bar with actuator supply voltage "b", circuit low causes include a bad boost pressure sensor or a vacuum leak in the system tiptronic switch recognition (f189), open circuit / signal to b+ or fuel pressure regulator 2 control circuit / open is the final reason of the code.

28543 Possible Causes:

28543 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor A Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 28543 Code

  • Inspect all the connections hydraulic pressure sensor 1, 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