1994 SLS charging problems
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 11 of 11
Cadillac Seville / Cadillac Eldorado Forum Discussion, 1994 SLS charging problems in Past Cadillac Vehicle Discussion; I just purchased a 1994 Cadillac and there is a small wire coming from alternator spliced then going to pcm/ignition ...
  1. #1
    RedCadiSLS is offline Cadillac Owners Member
    Join Date
    Dec 2013
    Posts
    7

    1994 SLS charging problems

    I just purchased a 1994 Cadillac and there is a small wire coming from alternator spliced then going to pcm/ignition fuse. It also has a light (test light I'm guessing). Any explantion on why this is done? Help please

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,368

    Re: 1994 SLS charging problems

    Quote Originally Posted by RedCadiSLS View Post
    I just purchased a 1994 Cadillac and there is a small wire coming from alternator spliced then going to pcm/ignition fuse. It also has a light (test light I'm guessing). Any explantion on why this is done? Help please
    --------------------------
    I have no idea of what it might be -
    HOWEVER - I can tell you it was NOT factory installed -

  4. #3
    RedCadiSLS is offline Cadillac Owners Member
    Join Date
    Dec 2013
    Posts
    7
    Hmm its still puzzles me why I'm so lost

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,368

    Re: 1994 SLS charging problems

    Quote Originally Posted by RedCadiSLS View Post
    Hmm its still puzzles me why I'm so lost
    -----------------
    post some pics of what's there -
    maybe someone here can figure out what it might be for -

  6. #5
    RedCadiSLS is offline Cadillac Owners Member
    Join Date
    Dec 2013
    Posts
    7

  7. #6
    RedCadiSLS is offline Cadillac Owners Member
    Join Date
    Dec 2013
    Posts
    7
    That's the picture of what I was stating. The red wire you see comes from alternator to the light bulb the there is a wire from the bulb to the PCM/IGNITION fuse. Still puzzled on what this is here for please help

  8. #7
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,368

    Re: 1994 SLS charging problems

    Quote Originally Posted by RedCadiSLS View Post
    That's the picture of what I was stating. The red wire you see comes from alternator to the light bulb the there is a wire from the bulb to the PCM/IGNITION fuse. Still puzzled on what this is here for please help
    -------------------
    I just can't imaging what it might be for -

    is the white wire feeding power to the fuse -
    or is the fuse feeding power to the white wire?

    in other words -
    is the white wire connected to the "hot" side of the fuse -
    or the "circuit" side of the fuse?

    pull that fuse - remove the white wire - put the fuse back in -
    see what - if anything - happens -

  9. #8
    RedCadiSLS is offline Cadillac Owners Member
    Join Date
    Dec 2013
    Posts
    7
    Ok I took the fuse out cranked up. But funny thing about the fuse its the right size and everything but it wont stay in the holder its a little loose??

  10. #9
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,368

    Re: 1994 SLS charging problems

    Quote Originally Posted by RedCadiSLS View Post
    Ok I took the fuse out cranked up. But funny thing about the fuse its the right size and everything but it wont stay in the holder its a little loose??
    ---------------------
    the brass contacts - where the wire was jammed in are probably bent slightly -

    pull the fuse out - and with a small flat-blade screwdriver -
    bend the contacts closer together -

    that is a 30 amp fuse -
    that means quite a bit of power is being used on that circuit -
    that fuse must fit tight - and make good contact -
    or you could develop some strange problems on that circuit -

  11. #10
    oldstuff is offline Cadillac Owners Fanatic
    Automobile(s): 66 convert-93-96-97-97-99 Eldorados
    Join Date
    Nov 2013
    Location
    McCleary Wa.
    Age
    78
    Posts
    352

    Re: 1994 SLS charging problems

    I have a good idea what it is. I've installed alternators in equipment that had been equipted with generators and they need to have power to activate them. What you are seeing is an activating circuit for the alternator because for some reason the cars wireing wasn't doing the job.
    Dave



    Quote Originally Posted by RedCadiSLS View Post

  12. #11
    el_dorado_mex's Avatar
    el_dorado_mex is offline Cadillac Owners Fanatic
    Automobile(s): 1996 El Dorado and 1991 Cheyenne Pickup
    Join Date
    Jul 2012
    Location
    Puerto Escondido, Mexico
    Age
    36
    Posts
    106
    ^^^ Double that. In that case the light would go on with ignition on and engine off, and go off once the engine is running, pretty much as the little alternator light many cars have in the dash.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting