What is MID 79 & How to Solve It?

What is MID 79:

MID 79 refers to Interior Lighting Systems. A fault here affects cabin lights, control dimmers, and lighting feedback circuits.

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Why This Happens:

• Burned-out or faulty light bulbs
  
• Shorted or damaged wiring
  
• Faulty dimmer switch or sensor
  
• Fuse or relay failure
  
• Software issue in the lighting controller
  
  

How to Fix It:

1. Replace any non-functional bulbs.
   
2. Inspect lighting circuits and fuses.
   
3. Test dimmer switches or ambient light sensors.
   
4. Reset or update lighting controller.
   
5. Replace faulty wiring or connectors.
   
   

How to Avoid It Before It Happens:

• Replace cabin bulbs in pairs to maintain longevity.
  
• Avoid overloading circuits with aftermarket lights.
  
• Use moisture-resistant lighting fixtures.
  
• Conduct visual lighting checks regularly.
  
• Clue’s equipment maintenance tools can log minor faults before they become disruptive.