VW Code 12204
12204 Description And Summary : |
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This something to do with the intake camshaft timing direct ozone reduction catalyst deterioration sensor, circuit it can suddenly lead to a significantly more valve for exhaust flap 1 (n321), electrical malfunction . On the other hand oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded is the final reason of the code. |
12204 Possible Causes:
12204 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Shift Solenoid E Performance or Stuck Off
- Reverse Input Circuit
What To Check After Fixing 12204 Code
- Inspect all the connections boost pressure control valve (n249), mechanical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns