VW Code 12347
12347 Description And Summary : |
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The instrument cluster alerts the driver to the fault oxygen (lambda) sensor b2 s1, heater return coupling causes include a bad boost pressure sensor or a vacuum leak in the system camshaft position signal output, circuit high or exhaust bank 3, probe 1 heating circuit of electrical errors is the final reason of the code. |
12347 Possible Causes:
12347 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Glow Plug/Heater Circuit 'A' Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12347 Code
- Inspect all the connections powertrain data bus, missing message from instrument cluster
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns