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Alternator wiring

Tiny
DOUGLAS41
  • MEMBER
  • 2001 HONDA ACCORD
  • 4 CYL
  • FWD
  • MANUAL
  • 260,000 MILES
The battery was not charging and in testing the alternator I broke a bolt. So I replaced the alternator with a new one today but the battery is still not charging. I need a wiring diagram which is not in the Honda service manual. Can someone point me to where I might find the wiring diagram for the charging system? Maybe point me to where the issue could be?

Thanks for any help!
Doug
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Wednesday, January 5th, 2011 AT 3:52 PM

2 Replies

Tiny
HONDAMIKE
  • MECHANIC
  • 71 POSTS
Is the alternator OK (charging?) Test at the charge wire on alt.
If it's OK, then you could have a bad battery (bad cell) or corrosion on the cables preventing the battery from accepting a charge.

Here's a guide on alternator testing, it will help you figure this out

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

Attached below is the charging circuit wiring diagram for your car
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Wednesday, January 5th, 2011 AT 4:43 PM
Tiny
KHLOW2008
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Charging is controlled by the PCM (Powertrain Control Module) and if the alternator had been tested good, you could have a faulty PCM.
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Tuesday, January 11th, 2011 AT 8:08 PM

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