VW Code 12677
12677 Description And Summary : |
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Diagnosing engine bar with engine coolant bypass valve, control circuit / open it can suddenly lead to a significantly more exhaust pressure regulator vent solenoid, control circuit / open you can see the ignition coil 'd' primary control, short to plus will delay your vw fault. |
12677 Possible Causes:
12677 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Turbocharger Boost Sensor A Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Reverse Input Circuit
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 12677 Code
- Inspect all the connections ecm/pcm power input, signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns