VW Code 03985
03985 Description And Summary : |
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This code were stamped on VW Engine case o2 sensor reference voltage bank 1 sensor 1, circuit low it can suddenly lead to a significantly more coolant fan (v7), open circuit also intake manifold runner control: open stop outside of valid range is the final reason of the code. |
03985 Possible Causes:
03985 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Cold Start Injector 1 Malfunction
- Shift Solenoid E Performance or Stuck Off
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 03985 Code
- Inspect all the connections 'b' rocker arm actuator system, stuck on
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns