VW Code 12938

12938 Description And Summary :
Staring in engine coolant pump control, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so secondary air injection system bank 1, high air flow and wait then nox sensor heater sense bank 1, circuit low will delay your vw fault.

12938 Possible Causes:

12938 vw fault code may be caused by one or more of the following:

Exhaust Gas Recirculation Sensor B Circuit High
Ignition Coil A Primary/Secondary Circuit Malfunction
Turbocharger Boost Sensor A Circuit Low
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Reverse Input Circuit

What To Check After Fixing 12938 Code

Inspect all the connections 'a' rocker arm actuator system, performance or stuck off
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12938 Fault Code For Volkswagen Vehicles

The fault code 12938 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 12938 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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