What is MID 105 & How to Solve It?

What is MID 105:

MID 105 refers to an issue with the Exhaust Gas Recirculation (EGR) Valve Control Circuit. This fault occurs when the ECM detects abnormal voltage in the EGR system, which can lead to improper exhaust gas flow and affect engine efficiency.

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Why This Happens:

• Faulty EGR valve.
  
• Damaged or shorted wiring in the EGR circuit.
  
• Loose or corroded EGR valve connectors.
  
• Blocked exhaust system affecting EGR function.
  
• ECM misinterpreting the EGR valve data.
  
  

How to Fix It:

1. Inspect the EGR valve for damage or malfunction.
   
2. Test the EGR valve’s control circuit for proper voltage.
   
3. Check the wiring and connectors for visible damage or corrosion.
   
4. Replace the faulty EGR valve if necessary.
   
5. Inspect the exhaust system for blockages or contamination.
   
   

How to Avoid It Before It Happens:

• Regularly inspect the EGR valve and wiring.
  
• Keep connectors clean and free from corrosion.
  
• Perform routine exhaust system maintenance.
  
• Monitor EGR system performance using diagnostic tools.
  
• Clue’s Equipment Maintenance services track EGR valve performance and prevent issues from affecting engine operation.