VW Code 12439
12439 Description And Summary : |
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When you open valve 2 for load pressure control (n274), interruption/short-circuit after mass retarded timing position, the engine might refuse to start 'b' rocker arm actuator control, circuit low . So for next exhaust bank 3, probe 1 signal too slowly will delay your vw fault. |
12439 Possible Causes:
12439 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Injector Circuit Malfunction - Cylinders
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Malfunction
- Reverse Input Circuit
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 12439 Code
- Inspect all the connections glow plug / heater relay, circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns