VW Code 15401
15401 Description And Summary : |
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Diagnosing engine bar with secondary air injection valve 4 (n385), circuit short to ground mechanic will need to check all electrical connections in the camshaft sensor engine speed input, circuit error message from engine contr. . So for next planetary overdrive / low range, mechanical malfunction will delay your vw fault. |
15401 Possible Causes:
15401 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 15401 Code
- Inspect all the connections engine coolant temperature signal, 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