Jump to content

Alternator not charging battery on my ford Edge 2012


Recommended Posts

Planned to go out this morning, so i started my Ford Edge 2012 SEL and had a check charging system light on. I did a quick check and discovered that the alternator was not charging the battery. Battery voltage was 11.4v with engine running. I disconnected the voltage regulator (3 pin plug) that connects to the alternator and tested for voltage on the terminals. One terminal had voltage equal to the battery voltage but the other 2 terminals had no voltage. Any suggestions on how to solve this problem? is my alternator bad?

Link to comment
Share on other sites

any codes in the computer? about 3v too low at 2,000 rpm, and about 1.2V too low at idle. Did you check the voltage between the B+ terminal and the positive battery terminal. The test to ground at battery voltage is fine. But maybe there is a drop between the B+ terminal on the alternator to battery positive terminal connection.


Also slow charge the battery overnite with a battery tender see if it holds a charge.


Any electrical gremlins with the CD player, shifter or door latch?

Link to comment
Share on other sites

  • 1 year later...
  • 2 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...