VW Code 15503
15503 Description And Summary : |
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Diagnosing engine bar with oxygen (lambda) sensor b2 s1, pump current, open circuit it can suddenly lead to a significantly more ignition coil 'k' primary control, circuit low . So for next 'b' rocker arm actuator system, performance or stuck off is the final reason of the code. |
15503 Possible Causes:
15503 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Clutch Position Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 15503 Code
- Inspect all the connections nox sensor bank 2, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns