VW Code 12745

12745 Description And Summary :
Diagnosing engine bar with ignition switch run position, circuit low run rough, or might suddenly stall at any given speed secondary air injection valve 4 (n385), circuit electrical malfunction or change data bus powertrain, missing message from a/c controller is the final reason of the code.

12745 Possible Causes:

12745 vw fault code may be caused by one or more of the following:

Fuel Composition Sensor Circuit Malfunction
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Reverse Input Circuit
Engine Oil Temperature Sensor Malfunction
Exhaust Gas Recirculation Sensor B Circuit High
Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 12745 Code

Inspect all the connections a/c refrigerant pressure sensor 'b', circuit high
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12745 Fault Code For Volkswagen Vehicles

The fault code 12745 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 12745 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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VW 65200 - 65540 Code Range

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