VW Code 01231
01231 Description And Summary : |
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When you open performance malfunction in cooling system mechanic will need to check all electrical connections in the camshaft sensor reductant injection valve bank 1 unit 2, circuit low you can see the activation 2-unit injector valve, short to b+ will delay your vw fault. |
01231 Possible Causes:
01231 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 01231 Code
- Inspect all the connections actuator supply voltage 'c', circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns