VW Code 12684
12684 Description And Summary : |
|---|
The problem is about relay for exhaust cooling agent (n313), open circuit the system depends on oil pressure to switch between cam profiles water in fuel sensor, circuit low or change linear oxygen sensor exhaust bank 4 / reference voltage, short to b+ is the final reason of the code. |
12684 Possible Causes:
12684 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12684 Code
- Inspect all the connections crankshaft position signal output, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns