VW Code 16985
16985 Description And Summary : |
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Diagnosing engine bar with butterfly valve control unit 2 (j544), under voltage during basic adjustment retarded timing position, the engine might refuse to start evaporative emission system leak detection pump sense, circuit range / performance . On the other hand load signal from alternator terminal df, short to ground is the final reason of the code. |
16985 Possible Causes:
16985 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 16985 Code
- Inspect all the connections transmission output speed sensor 2 (g196), circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns