Battery message?

2002 CHEVROLET MONTE CARLO
115,000 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
Avatar
FULTON08
  • MEMBER
  • 1 POST
We installed a new starter, new alternator and got a new battery, something is still draining the battery and the battery symbol comes back on in message center.
Feb 22, 2023 at 2:36 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 POSTS
Hi,

My first suspect is a fusible link that runs between the starter motor and the alternator.

If you look at the pics below, I highlighted the fusible link and included the entire charging system wiring schematic. Note that it goes to a red wire and runs battery power to the alternator.

Check to see if there is power at that wire. It should have battery voltage at all times.

Let me know what you find.

Take care,

Joe

See pics below.
Feb 22, 2023 at 12:18 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.