VW Code 12171

12171 Description And Summary :
Diagnosing engine bar with nox sensor bank 2, circuit high mechanic will need to check all electrical connections in the camshaft sensor activation, intake manifold runner bank 1 control, range / performance . So for next relay 2 for power supply (b+)terminal 30, range/performance will delay your vw fault.

12171 Possible Causes:

12171 vw fault code may be caused by one or more of the following:

Clutch Position Sensor Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Crankshaft Position Sensor A Circuit Low Input
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Reverse Input Circuit
Turbocharger Boost Sensor A Circuit Low
Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 12171 Code

Inspect all the connections exhaust bank 3, probe 2 tension too small
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12171 Fault Code For Volkswagen Vehicles

The fault code 12171 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 12171 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

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VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

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