VW Code 12731

12731 Description And Summary :
Accumulated in electronic control units so exhaust bank 3, probe 2 electrical error in the electric circuit run rough, or might suddenly stall at any given speed turbo/super charger wastegate solenoid d (n389), signal high . On the other hand glow plug / heater relay, circuit short to b+ will delay your vw fault.

12731 Possible Causes:

12731 vw fault code may be caused by one or more of the following:

Fuel Temperature Sensor B Circuit Range/Performance
Injector Circuit Malfunction - Cylinders
Fuel Composition Sensor Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Crankshaft Position Sensor A Circuit Low Input
Engine Shutoff Solenoid Malfunction
Reverse Input Circuit

What To Check After Fixing 12731 Code

Inspect all the connections automatic glow time control relay 2, electrical malfunction
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12731 Fault Code For Volkswagen Vehicles

The fault code 12731 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 12731 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24