The battery light stay on when driving

2007 TOYOTA CAMRY
256,000 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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JOE1953
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the battery light stay on when driving. i noticed sign of rats have been under the hood is it possible a rat have damage a wire? can you send me a wiring diagram on the generator charging system? i want to see where the battery light wire is connected to so i can check it out.
Nov 16, 2016 at 5:21 PM
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AL514
  • ✓ASE Certified Mechanic
  • 5,587 POSTS
  • ASE Certified Mechanic
It could be the alternator has gone out but to be sure lets run down this guide to help you find the problem. Also I have included the wiring diagrams so you can see how the system works.

https://youtu.be/Z-p4dMJUpUw

and

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

this guide can walk you through the steps of th alternator replacement with diagrams below to show you ghoe on your car.

https://www.2carpros.com/articles/how-to-replace-an-alternator

Check out the diagrams (Below). Please let us know what happens.
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Nov 16, 2016 at 7:29 PM
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AL514
  • ✓ASE Certified Mechanic
  • 5,587 POSTS
  • ASE Certified Mechanic
Check the main fusible link coming right off the battery, and where are you checking the voltage at? right off the battery or from the alternator?
Nov 16, 2016 at 7:32 PM
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JOE1953
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  • 794 POSTS
thank you the alternator was bad all fixed.
Nov 16, 2016 at 9:29 PM
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