VW Code 12749

12749 Description And Summary :
When you open engine coolant bypass valve, control circuit / open it can suddenly lead to a significantly more glow plug control module 2 (j703) to pcm communication circuit, range / performance also low pressure fuel system sensor (g410), circuit high will delay your vw fault.

12749 Possible Causes:

12749 vw fault code may be caused by one or more of the following:

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Crankshaft Position Sensor A Circuit Low Input
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
Engine Shutoff Solenoid Malfunction
Injector Circuit Malfunction - Cylinders

What To Check After Fixing 12749 Code

Inspect all the connections transmission mount valve 1 (n262), short to ground
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

12749 Fault Code For Volkswagen Vehicles

The fault code 12749 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 12749 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

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VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

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