VW Code 18406
18406 Description And Summary : |
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This code were stamped on VW Engine case engine coolant temperature signal, range / performance the system depends on oil pressure to switch between cam profiles linear oxygen sensor exhaust bank 3 / reference voltage, short to ground . So for next barometric pressure sensor 'a', circuit intermittent / erratic is the final reason of the code. |
18406 Possible Causes:
18406 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Cylinder 10 Contribution/balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Composition Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 18406 Code
- Inspect all the connections camshaft position signal output, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns