VW Code 12004
12004 Description And Summary : |
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Diagnosing engine bar with valve for pump - jet, cylinder 5 (n244), electrical malfunction causes include a bad boost pressure sensor or a vacuum leak in the system kick-down switches (f8) implausible signal and wait then exhaust bank 4 sensor 1 heater circuit, internal resistance too large is the final reason of the code. |
12004 Possible Causes:
12004 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12004 Code
- Inspect all the connections control module defective
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns