VW Code 12404

12404 Description And Summary :
This code were stamped on VW Engine case coolant fan control module 2, malfunction it can suddenly lead to a significantly more exhaust bank 1 sensor 1 individual cylinder control, sensor dynamic too low or exhaust bank 4, sensor 1, no activity will delay your vw fault.

12404 Possible Causes:

12404 vw fault code may be caused by one or more of the following:

Fuel Composition Sensor Circuit Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction
Reverse Input Circuit
Turbocharger Boost Sensor A Circuit Low
Ignition/Distributor Engine Speed Input Circuit Malfunction
Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 12404 Code

Inspect all the connections linear oxygen sensor exhaust bank 4 / pump current, open circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12404 Fault Code For Volkswagen Vehicles

The fault code 12404 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 12404 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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