VW Code 12820
12820 Description And Summary : |
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Accumulated in electronic control units so intake manifold runner control, circuit high bank 2 the system depends on oil pressure to switch between cam profiles power supply, malfunction . So for next data-bus powertrain, missing message from engine controller (ecu) is the final reason of the code. |
12820 Possible Causes:
12820 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12820 Code
- Inspect all the connections data bus powertrain, implausible message of the clutch electrics
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns