Jump to content
CaddyInfo Cadillac Forum

New error message on screen


skyman

Recommended Posts

Yesterday out shopping a new message came on the computer screen. "Service Engine Soon!" "Battery voltage too high". So pushed the eng data untill I came to the battery voltage. I was at 16.1 then it started to to go up and down between 13.9 and 16.1. Then between 13.9 and 14.3. It continued on like that for about ten minutes as I was driving. Then, it just leveled out at 13.9-14. I checked the shop manuel and it pointed to either the battery or the generator. The generator was replaced last year with a rebuilt. The battery is several years old but always cranks nice and fast summer or winter. Has anyone here ever had this come up?

Link to comment
Share on other sites


Yesterday out shopping a new message came on the computer screen. "Service Engine Soon!" "Battery voltage too high". So pushed the eng data untill I came to the battery voltage. I was at 16.1 then it started to to go up and down between 13.9 and 16.1. Then between 13.9 and 14.3. It continued on like that for about ten minutes as I was driving. Then, it just leveled out at 13.9-14. I checked the shop manuel and it pointed to either the battery or the generator. The generator was replaced last year with a rebuilt. The battery is several years old but always cranks nice and fast summer or winter. Has anyone here ever had this come up?

Go to the top of this page, click HOW TO, then DTC CODES, and follow the directions for your year vehicle. Post your codes here.

Have your battery load tested

We are not big fans of rebuilt alternators unless they are rebuilt by ac delco. This sounds like a regulator problem, the regulator is in the alternator

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

Link to comment
Share on other sites

It's throwing 4 codes.All in history. EO16,EO52,B412,B552. I did remove the battery last week to remove the coolant overflow canister so I could clean it so one of these codes is for that. I had a rebuild alternator put in 11/30/07. I'm guessing that the voltage regulator is incorporated in the alternator? The battery is a 4 or 6 year battery probably around 4yrs but still cranks fast.

Link to comment
Share on other sites

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.

Guest
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.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...