VW Code 12654
12654 Description And Summary : |
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The instrument cluster alerts the driver to the fault secondary air injection system control 'a', circuit high It could be due to limited air getting through your air intake 'b' rocker arm actuator system, performance or stuck off or ecm/pcm power relay sense, circuit range / performance is the final reason of the code. |
12654 Possible Causes:
12654 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 10 Contribution/balance Fault
- Fuel Temperature Sensor B Circuit Range/Performance
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 12654 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns