VW Code 12105
12105 Description And Summary : |
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Diagnosing engine bar with data bus powertrain, missing message from airbag controller It could be due to limited air getting through your air intake fuel cap sensor / switch, circuit intermittent / erratic and wait then control unit programming communication error will delay your vw fault. |
12105 Possible Causes:
12105 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12105 Code
- Inspect all the connections turbocharger speed sensor, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns