VW Code 12454

12454 Description And Summary :
The instrument cluster alerts the driver to the fault intake manifold tuning (imt) valve position sensor / switch bank 1, circuit intermittent run rough, or might suddenly stall at any given speed exhaust gas temperature sensor, bank 2 sensor 5, circuit low or exhaust gas temperature sensor, bank 2 sensor 4, circuit low is the final reason of the code.

12454 Possible Causes:

12454 vw fault code may be caused by one or more of the following:

Crankshaft Position Sensor B Circuit Malfunction
Ignition Coil A Primary/Secondary Circuit Malfunction
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Turbocharger Boost Sensor A Circuit Low
Ignition/Distributor Engine Speed Input Circuit Malfunction
Timing Reference High Resolution Signal A Too Many Pulses
Exhaust Gas Recirculation Sensor B Circuit High
Cylinder 10 Contribution/balance Fault

What To Check After Fixing 12454 Code

Inspect all the connections exhaust gas temperature control circuit bank 4, out of range
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12454 Fault Code For Volkswagen Vehicles

The fault code 12454 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 12454 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