Dead STS - no voltage whatsoever
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
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 22
Cadillac Seville / Cadillac Eldorado Forum Discussion, Dead STS - no voltage whatsoever in Past Cadillac Vehicle Discussion; Hi.. I have a 2002 STS. It just died one day. I thought the alternator went & the car ran ...
  1. #1
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11

    Dead STS - no voltage whatsoever

    Hi.. I have a 2002 STS. It just died one day. I thought the alternator went & the car ran on the battery until it just ran down..
    Well I have tried boosting it & it wont take a boost. Not even the interior lights come on when hooked to the boosting vehicle.
    Any helpful advice would be appreciated. Thanks


    OK.. Got a new battery, Got power but the car wont start. The starter wont even engage.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install a sound system
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,578

    Re: Dead STS

    Your Group 79 battery - minimum 800 CCA - is under the rear seat with a special vent system. Check all the battery cables and the end of the negative cable where it attaches to the body metal stud. Check the engine to body ground strap as well as the positive cable at the underhood fuse box. Using a VOM, check for battery voltage at the underhood fuse box + cable and body metal. A fully charged battery, hooked up in the car, should show 12.4 volts or so in the DIC. A fully charged battery, disconnected and sitting idle for at least a half hour, will show 12.6 volts.

    With no power whatsoever you'll need to do some really basic troubleshooting before you can use the car's built-in trouble code scanner system.

    If you do regain power, study the sticky posts just above this thread, especially the one "How to pull codes" for your year/model. Bookmark the link in the sticky which takes you to the site for all code definitions.

  4. #3
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    10,354

    Re: Dead STS - no voltage whatsoever

    if you do need a new battery -
    I recommend the walmart group 79MAXX -

    great battery for a good price -

  5. #4
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter

    Re: Dead STS - no voltage whatsoever

    So new battery, I turned the key on & the dash reads "service Theft system"
    I believe this is why the starter wont engage

  6. #5
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
    Join Date
    Nov 2006
    Location
    Toronto, Canada
    Age
    36
    Posts
    6,405

    Re: Dead STS - no voltage whatsoever

    Pull the codes!
    Everybody tell you to do so, if you see the message on the dash then you can pull the codes.
    What is the battery voltage (ignition ON/OFF)?
    I know you cannot start the engine but that should not prevent you to have the ignition ON.

  7. #6
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter
    It was at 12 but now down to 11. 8 due to using power

    ----------

    And I did pull and clear the codes. Doesn't help with the "service theft system" tho

  8. #7
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    10,354

    Re: Dead STS - no voltage whatsoever

    Quote Originally Posted by Silver66 View Post
    It was at 12 but now down to 11. 8 due to using power

    ----------

    And I did pull and clear the codes. Doesn't help with the "service theft system" tho
    -------------------------
    we ask to pull codes -
    because codes will help diagnose the problem -

    clearing codes does NOT fix anything -
    and now er have no "clues" to guide us -

  9. #8
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter
    The " current" codes are.... bdm b3833. Ddm u1255. Dim u1254. Ipc u1000. Ipm u1255. Irc u1000. Msm u1000. Rim u1255. Sdm u1016. Sdm u1040. Vtd u1000 and lastly No PCM Data

    ----------

    Please don't ask for the history code's lol

  10. #9
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    10,354

    Re: Dead STS - no voltage whatsoever

    Quote Originally Posted by Silver66 View Post
    The " current" codes are.... bdm b3833. Ddm u1255. Dim u1254. Ipc u1000. Ipm u1255. Irc u1000. Msm u1000. Rim u1255. Sdm u1016. Sdm u1040. Vtd u1000 and lastly No PCM Data

    ----------

    Please don't ask for the history code's lol
    --------------------------
    Please don't ask for the history code's lol
    OK - I won't - lol -

    but how about the DEFINITIONS -

  11. #10
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter
    I have yet to look up the definitions. But I'm leaning towards the PCM lost connection or it simply cratered

  12. #11
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install a sound system
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,578

    Re: Dead STS - no voltage whatsoever

    I seriously doubt that the PCM itself is at fault. If it is, it will be one of 3 I have seen in 7.5 years in here.

  13. #12
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
    Join Date
    Nov 2006
    Location
    Toronto, Canada
    Age
    36
    Posts
    6,405

    Re: Dead STS - no voltage whatsoever

    The PCM is NOT the issue.

    The key in your car has a chip and a coil inside the plastic handle.
    In the area around the ignition cylinder there is another coil (exciter) that is eventually connected to the DIM.
    This way the DIM is able to read the code in the key (proxy).
    The DIM will then encrypt this message and send the "START ENABLE" message to the PCM (basically will let the PCM know the key is valid and it can enable the starter relay and open the injectors).
    '99% your issue is in the DIM/VTD area.

    Please post ALL YOUR codes (HISTORY or CURRENT, in this situation ALL are important) along with their definitions and we can help you further. Do specify what code is current and what is history though.
    The more information you provide the easier it is to get a correct diagnose form one of us.

  14. #13
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter

    Re: Dead STS - no voltage whatsoever

    The "current" (before cleared) are listed above
    The "history" are as follows DDM U1715. DDM U1016. DIM B1805. IPC B1004. IPC U1192. IPM B1652. IRC U1301. IRC U1064. IRC U1065. IRC U1160.
    MSM B1327. MSM B1840. MSM U1016. RFA U1305. RIM B1327. RIM U1016. RSS U1016. RSS U1000. TTM B1983. TTM U1016. VTD B1327.
    After being asked to clear
    All ID? appeared & this followed. AMP ID: 8822. DDM ID: 5660. DIM ID: 2403. IPC ID: 2403. IPM ID: 3026. IRC ID: 4346. MSM ID: 2234. RFA ID: 5964.
    RIM ID: 2585. RSS ID: 6599. TTM ID 9790. VTD ID: 7589. ALL CODES?

    I do wish to thank all for the help & forgive me if this seems like a dumb question but... How do I get the key & the car to communicate with each other?
    I was told by a mechanic to scrap the car cause the starter was gone & cost WAY too much to fix.
    I DONT want to scrap it & this new info gives me a lot of hope..

  15. #14
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install a sound system
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    45,578

    Re: Dead STS - no voltage whatsoever

    You can program keys, the dealer has to program new remotes (fobs). Use this to get and post definitions of all your OBD-II codes. We haven't memorized all of them - yet.

    The ALL ID ? question is not related to codes -or faults - that's module ID's and model #'s. You really don't need to continue there after the "Clear Codes ?" question.

    http://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

  16. #15
    Silver66 is offline Cadillac Owners Member
    Automobile(s): 2002 STS, 2007 F250 Super Duty
    Join Date
    Aug 2013
    Location
    Fort McMurray, AB
    Age
    48
    Posts
    11
    Thread Starter

    Re: Dead STS - no voltage whatsoever

    Got the code list & most are "loss of communication" codes (most likely from the battery going dead) Now that there is a new battery installed, will it re-set itself or does it have to go to the dealer to be re-set?? If it can be done at home,,, How?

    p.s. the key fob still works
    it seems the key is now the
    issue.

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