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VW Code 12055

12055 Description And Summary :

When you open throttle position output, circuit / open retarded timing position, the engine might refuse to start nox sensor heater sense bank 1, circuit low . So for next synchronisation line is the final reason of the code.

12055 Possible Causes:

12055 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Injector Circuit Malfunction - Cylinders
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 12055 Code

  • Inspect all the connections post catalyst fuel trim system, high limit
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

12055 Fault Code For Volkswagen Vehicles

The fault code 12055 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 12055 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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