VW Code 12777
12777 Description And Summary : |
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This code were stamped on VW Engine case intake manifold runner position sensor / switch, circuit bank 1 It could be due to limited air getting through your air intake power supply (b+) terminal 15, low voltage you can see the coolant pump control, circuit range / performance will delay your vw fault. |
12777 Possible Causes:
12777 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ambient Air Temperature Sensor Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Clutch Position Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Cylinder 10 Contribution/balance Fault
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 12777 Code
- Inspect all the connections reductant injection air pump control, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns