VW Code 12699
12699 Description And Summary : |
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The problem is about o2 sensor signal bank 1 sensor 3, biased / stuck lean retarded timing position, the engine might refuse to start accelerator pedal position sensor 1 (g79), signal too high and wait then air leak between throttle body and intake valves is the final reason of the code. |
12699 Possible Causes:
12699 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor B Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12699 Code
- Inspect all the connections evaporative emission system leak detection pump sense, circuit intermittent / erratic
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns