VW Code 09556
09556 Description And Summary : |
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The problem is about secondary air injection valve 3 (n384), circuit short to ground run rough, or might suddenly stall at any given speed secondary air injection system air flow/pressure sensor bank 1, circuit and wait then reductant injection air pump control, circuit low is the final reason of the code. |
09556 Possible Causes:
09556 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 09556 Code
- Inspect all the connections actuator supply voltage "b", circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns