VW Code 15403
15403 Description And Summary : |
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Diagnosing engine bar with turbocharger / supercharger boost system performance causes include a bad boost pressure sensor or a vacuum leak in the system 'a' rocker arm actuator control, circuit high and wait then exhaust bank 3/4 lambda probes before kat exchanges will delay your vw fault. |
15403 Possible Causes:
15403 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor B Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Reverse Input Circuit
What To Check After Fixing 15403 Code
- Inspect all the connections exhaust bank 3, probe 2 signal too slowly
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns