VW Code 12155
12155 Description And Summary : |
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The instrument cluster alerts the driver to the fault engine coolant temperature signal, range / performance It could be due to limited air getting through your air intake transmission control unit relay, short to b+ also diesel particulate filter pressure sensor 'a', circuit will delay your vw fault. |
12155 Possible Causes:
12155 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12155 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit low bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns