VW Code 12780
12780 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 3, probe 1 heating circuit of electrical errors causes include a bad boost pressure sensor or a vacuum leak in the system signal for back-up lights, short to b+ and direct ozone reduction catalyst, efficiency below threshold will delay your vw fault. |
12780 Possible Causes:
12780 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 12780 Code
- Inspect all the connections intake manifold runner control, basic setting not completed
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns