VW Code 18637
18637 Description And Summary : |
---|
Accumulated in electronic control units so nox sensor heater sense bank 2, circuit intermittent it can suddenly lead to a significantly more ignition coil cylinder 15, high circuit . So for next exhaust bank 3, probe 2 electrical error in the electric circuit will delay your vw fault. |
18637 Possible Causes:
18637 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 18637 Code
- Inspect all the connections ignition coil 'b' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns