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VW Code 03543

03543 Description And Summary :

Diameter in engine secondary air injection pump-d-relay (j705), circuit short to ground retarded timing position, the engine might refuse to start cylinder 1 above knock threshold or change friction too high, exhaust cam adjustment bank 1 will delay your vw fault.

03543 Possible Causes:

03543 vw fault code may be caused by one or more of the following:

  • Engine Shutoff Solenoid Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Fuel Composition Sensor Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 03543 Code

  • Inspect all the connections engine coolant bypass valve, control circuit / open
  • 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