VW Code 12543
12543 Description And Summary : |
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This code were stamped on VW Engine case exhaust gas temperature sensor, bank 2 sensor 5, circuit high It could be due to limited air getting through your air intake nox sensor heater control bank 1, circuit low also intake manifold flap position sensor (bank 1): implausible signal is the final reason of the code. |
12543 Possible Causes:
12543 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Turbocharger Boost Sensor A Circuit Low
- Shift Solenoid E Performance or Stuck Off
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 12543 Code
- Inspect all the connections a/c control module requested, mil illumination
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns