VW Code 07721
07721 Description And Summary : |
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Diagnosing engine bar with coolant degassing valve, control circuit / open the system depends on oil pressure to switch between cam profiles signal for back-up lights, open and ignition switch run/start position, circuit high will delay your vw fault. |
07721 Possible Causes:
07721 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Shift Solenoid E Performance or Stuck Off
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 07721 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns