VW Code 09504
09504 Description And Summary : |
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Accumulated in electronic control units so valve for exhaust flap 1 (n321), electrical malfunction causes include a bad boost pressure sensor or a vacuum leak in the system data bus powertrain, missing message from diagnostic interface-control module or valve for intake manifold flap (n239), short to b+ is the final reason of the code. |
09504 Possible Causes:
09504 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 09504 Code
- Inspect all the connections oxygen (lambda) sensor b1 s1, signal shorted to heater circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns