VW Code 12776
12776 Description And Summary : |
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The problem is about nox sensor heater control bank 2, circuit / open it can suddenly lead to a significantly more secondary air injection valve 4 (n385), circuit electrical malfunction also linear oxygen sensor exhaust bank 4 / reference voltage, open circuit is the final reason of the code. |
12776 Possible Causes:
12776 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Reverse Input Circuit
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12776 Code
- Inspect all the connections intake manifold runner bank 1 control, basic setting aborted mechanical limit open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns