What is FMI 16 & How to Solve It?

What is FMI 16:

FMI 16 refers to sensor circuit voltage below normal. The ECM detects that the sensor is receiving a lower-than-normal voltage, indicating that the sensor might not be functioning properly.

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Why This Happens:

• Low power supply to the sensor.
  
• Faulty or malfunctioning sensor.
  
• Shorted or damaged wiring.
  
• ECM misinterpreting data.
  
• Battery or alternator issues affecting voltage.
  
  

How to Fix It:

1. Check the sensor’s power supply to ensure it meets voltage specifications.
   
2. Inspect wiring for visible damage, shorts, or corrosion.
   
3. Test the sensor to ensure proper functionality.
   
4. Replace the faulty sensor if necessary.
   
5. Ensure that the power supply to the sensor is stable.
   
   

How to Avoid It Before It Happens:

• Perform regular voltage checks for sensors.
  
• Keep connectors clean and corrosion-free.
  
• Regularly inspect power supply components.
  
• Clue’s fleet management services monitor voltage levels to prevent sensor malfunctions caused by low power.