VW Code 12542
12542 Description And Summary : |
|---|
Diagnosing engine bar with nox sensor heater sense bank 1, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater sense bank 1, circuit range / performance you can see the reductant injection air pressure sensor 'a', circuit high is the final reason of the code. |
12542 Possible Causes:
12542 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Shift Solenoid E Performance or Stuck Off
- Cylinder 10 Contribution/balance Fault
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Cylinder 4 Contribution/Balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12542 Code
- Inspect all the connections data bus powertrain, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns