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VW Code 15721

15721 Description And Summary :

Diagnosing engine bar with hydraulic actuator position sender (g302), no / incorrect basic setting/adaptation mechanic will need to check all electrical connections in the camshaft sensor engine coolant temperature signal, open / short to b+ and wait then torque management request input signal a, low is the final reason of the code.

15721 Possible Causes:

15721 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor A Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Cylinder 1 Injector Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 15721 Code

  • Inspect all the connections exhaust pressure regulator vent solenoid, control 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

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range