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Battery drain

Tiny
BRENDA DANUK-MURPHY
  • MEMBER
  • 2000 CADILLAC DEVILLE
  • 3.2L
  • V8
  • AUTOMATIC
  • 110,000 MILES
I replaced PCM, battery and alternator. Drove to AutoZone and back car was dead in morning. I have three wires red orange and yellow/gray I’m not sure what order they go in for alternator plug. Can’t find a diagram anywhere.
Sunday, November 21st, 2021 AT 11:30 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

So just to clarify, the alternator is not charging the battery? Did the battery light stay on during your drive home?

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

I have attached the pinout and the wiring diagram below.
It shows the color and the orientation of each wire.

Please let me know of any questions.
Thank you.
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Monday, November 22nd, 2021 AT 8:26 AM

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