logo

VW Code 06721

06721 Description And Summary :

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

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range