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VW Code 05721

05721 Description And Summary :

Diagnosing engine bar with data bus powertrain, implausible message of the control module central electrics mechanic will need to check all electrical connections in the camshaft sensor exhaust gas temperature sensor bank 1 sensor 1, circuit intermittent or change nox sensor bank 2, circuit range / performance is the final reason of the code.

05721 Possible Causes:

05721 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Crankshaft Position Sensor A Circuit Low Input
  • Shift Solenoid E Performance or Stuck Off
  • O2 Sensor Heater Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 05721 Code

  • Inspect all the connections engine coolant bypass valve, 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

05721 Fault Code For Volkswagen Vehicles

The fault code 05721 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 05721 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range