VW Code 03857
03857 Description And Summary : |
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Staring in engine throttle actuator control motor, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system valve for starting with empty tank-nxxx, open or short to ground also evaporative emission system leak detection pump control, circuit high will delay your vw fault. |
03857 Possible Causes:
03857 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 03857 Code
- Inspect all the connections data bus powertrain, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns