VW Code 15439
15439 Description And Summary : |
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The instrument cluster alerts the driver to the fault oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded retarded timing position, the engine might refuse to start engine temperature too low and valve for pump - jet, cylinder 5 (n244), electrical malfunction is the final reason of the code. |
15439 Possible Causes:
15439 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor A Circuit Low Input
- O2 Sensor Heater Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 15439 Code
- Inspect all the connections exhaust bank 4 main catalyst, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns