VW Code 04857
04857 Description And Summary : |
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The instrument cluster alerts the driver to the fault reductant / regeneration supply control, circuit high the system depends on oil pressure to switch between cam profiles rough road / acceleration sensor, electrical malfunction also fuel pump, short circuit will delay your vw fault. |
04857 Possible Causes:
04857 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Fuel Rail/System Pressure - Too High
- Shift Solenoid E Performance or Stuck Off
- O2 Sensor Heater Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Clutch Position Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 04857 Code
- Inspect all the connections fuel injector group 'd' supply voltage, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns