CODE C0900?

2013 CHEVROLET SILVERADO
283,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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EARL91
  • MEMBER
  • 88 POSTS
CODE C0900?
Aug 15, 2024 at 9:39 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The code seems to deal with excessive voltage (see pic below). What I need you to do first is to confirm the battery voltage with the engine off and then again with it running. We may have a faulty voltage regulator. Here is a link that explains how to check this. You will need a voltmeter or multimeter.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Let me know what you find,

Joe

See pic below.
Aug 15, 2024 at 7:47 PM
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