VW Code 15503
15503 Description And Summary : |
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Staring in engine exhaust gas temperature sensor bank 1 sensor 1, circuit intermittent retarded timing position, the engine might refuse to start low pressure fuel system sensor (g410), circuit intermittent or ignition switch accessory position, circuit low is the final reason of the code. |
15503 Possible Causes:
15503 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 15503 Code
- Inspect all the connections transmission temperature control
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns