VW Code 12931

12931 Description And Summary :
Accumulated in electronic control units so kick-down switches (f8) implausible signal to change the oil filter and use the recommended engine oil to avoid any problems in the future so o2 sensor pumping current trim bank 2 sensor 1, circuit high . On the other hand supply voltage for fuel injector group b, short to ground will delay your vw fault.

12931 Possible Causes:

12931 vw fault code may be caused by one or more of the following:

Fuel Rail/System Pressure - Too High
Cylinder 10 Contribution/balance Fault
Crankshaft Position Sensor B Circuit Malfunction
Ignition Coil A Primary/Secondary Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Shift Solenoid E Performance or Stuck Off
Reverse Input Circuit
Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 12931 Code

Inspect all the connections glow plug/heater relay circuit, electrical
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12931 Fault Code For Volkswagen Vehicles

The fault code 12931 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 12931 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