VW Code 12539
12539 Description And Summary : |
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Accumulated in electronic control units so charge pressure fan relay (j712), short to b+ run rough, or might suddenly stall at any given speed idle speed control throttle position 2, electrical malfunction also reductant injection valve bank 2 unit 2, circuit low is the final reason of the code. |
12539 Possible Causes:
12539 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- O2 Sensor Heater Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Low Input
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12539 Code
- Inspect all the connections intake manifold runner control, circuit low bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns