VW Code 12279
12279 Description And Summary : |
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Diameter in engine bank 3, o2 correction behind catalyst, b1, limit attained it can suddenly lead to a significantly more secondary air injection system switching valve bank 1, stuck closed you can see the relay for supply voltage terminal 30 (j317), implausible signal will delay your vw fault. |
12279 Possible Causes:
12279 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 12279 Code
- Inspect all the connections ignition coil 'b' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns