VW Code 06721
06721 Description And Summary : |
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This code were stamped on VW Engine case nox sensor heater sense bank 1, circuit high the system depends on oil pressure to switch between cam profiles load signal range / performance . So for next relays for small amount of heat (j359), short-circuit after pluses is the final reason of the code. |
06721 Possible Causes:
06721 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Composition Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 06721 Code
- Inspect all the connections injector cylinder 16 (n393), 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