What is CID 983 & How to Solve It?

What is CID 983:

cid 983 refers to a fault in the alternator voltage output circuit. the ecm detects unstable voltage or low charging output, leading to battery drain and electrical malfunctions.

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Why This Happens:

• faulty alternator.
  
• loose or corroded battery terminals.
  
• damaged wiring to the alternator.
  
• weak or failing battery.
  
• regulator malfunction inside alternator assembly.
  
  

How to Fix It:

1. inspect alternator and belt tension.
   
2. test alternator voltage output.
   
3. check battery condition and charge rate.
   
4. clean or tighten all power connections.
   
5. replace alternator or regulator if faulty.
   
   

How to Avoid It Before It Happens:

• test battery and alternator output quarterly.
  
• maintain clean electrical terminals.
  
• inspect wiring for chafing or loose fittings.
  
• clue’s fleet management software tracks electrical performance to prevent sudden breakdowns.