VW Code 18686
18686 Description And Summary : |
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Diameter in engine o2 sensor reference voltage bank 2 sensor 1, circuit / open run rough, or might suddenly stall at any given speed data-bus powertrain, missing message from fuel injection pump . On the other hand linear oxygen sensor exhaust bank 4 / reference voltage, short to b+ is the final reason of the code. |
18686 Possible Causes:
18686 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 18686 Code
- Inspect all the connections data bus powertrain, implausible message of the a/c control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns