VW Code 12109
12109 Description And Summary : |
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Staring in engine reductant / regeneration supply control, circuit / open the system depends on oil pressure to switch between cam profiles intake manifold flap; bank 1, stuck closed . So for next throttle actuator control system, forced limited power will delay your vw fault. |
12109 Possible Causes:
12109 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 12109 Code
- Inspect all the connections internal control module: eeprom error
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns