VW Code 12749
12749 Description And Summary : |
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When you open exhaust gas temperature sensor bank 2 sensor 2, circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 3, probe 2 heating circuit short-circuit after mass or change control module 2 for cooling fan, excess temperature will delay your vw fault. |
12749 Possible Causes:
12749 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor A Circuit Low Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12749 Code
- Inspect all the connections event data recorder request, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns