VW Code 12504
12504 Description And Summary : |
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Diagnosing engine bar with reductant temperature sensor, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system transmission range display, circuit short to ground and wait then a camshaft position actuator control bank 1, circuit low is the final reason of the code. |
12504 Possible Causes:
12504 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Low Input
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 12504 Code
- Inspect all the connections ignition coil cylinder 16, low circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns