TCS C1243 on 98 Deville
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 16
Suspension, Brakes and Tires Discussion, TCS C1243 on 98 Deville in Item Specific Cadillac Discussion; Hello I've looked through the forum quite a bit, I'm looking for information on troubleshooting c1243. If someone could post ...
  1. #1
    nickpitlosh is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Apr 2007
    Posts
    11

    TCS C1243 on 98 Deville

    Hello

    I've looked through the forum quite a bit, I'm looking for information on troubleshooting c1243. If someone could post the diagnostic steps for this code, an pictures of what the ABS pump looks like with its location, I'd be most grateful. This is the first car that I bought all on my own and I need some assistance locating some of this stuff.

    Also is anyone here in the lansing, MI area?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Rantaholic is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Aug 2008
    Posts
    3

    Re: TCS C1243 on 98 Deville

    I would also be interested in this info


    thanks

  4. #3
    Cliff8928 is offline Cadillac Owners Fanatic
    Automobile(s): STS-V - XLR
    Join Date
    Jul 2008
    Location
    Long Grove, IL
    Age
    34
    Posts
    415

    Re: TCS C1243 on 98 Deville

    Quote Originally Posted by GM
    DTC C1243 BPMV Pump Motor Stalled




    Circuit Description

    When the EBTCM grounds the pump motor relay, the relay closes and provides battery voltage in order to operate the pump.

    Conditions for Setting the DTC

    All of the following conditions occur:

    After the pump motor has been ON, the pump motor relay is commanded OFF.
    The pump motor was ON.
    The EBTCM detected a stalled or slowly turning motor.
    Action Taken When the DTC Sets

    A malfunction DTC is stored.
    The ABS/TCS/Stabilitrak® is disabled.
    The ABS indicator is turned ON.
    The TRACTION CONTROL indicator is turned ON.
    The DIC displays the SERVICE STABILITY SYS message.
    Conditions for Clearing the DTC

    The condition for DTC is no longer present and you used scan tool Clear DTCs function.
    The condition for DTC is no longer present and you used the On-Board Clear DTCs function.
    The EBTCM does not detect the DTC in 50 drive cycles.
    Drop me a PM with your email if you want the rest in a PDF.

  5. #4
    nickpitlosh is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Apr 2007
    Posts
    11

    Re: TCS C1243 on 98 Deville

    It would seem that I can't use the pm system yet. If you could, please forward that to my username here at gmail.com

  6. #5
    Cliff8928 is offline Cadillac Owners Fanatic
    Automobile(s): STS-V - XLR
    Join Date
    Jul 2008
    Location
    Long Grove, IL
    Age
    34
    Posts
    415

    Re: TCS C1243 on 98 Deville

    Yeah, you need 10 post minimum I believe...

  7. #6
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    Here is an image of the B.P.M.V and the A.B.S. motor's location. It's on the driver's side of the vehicle behind the front tire.
    Attached Images

  8. #7
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    The next step in fixing this c1243 code would be to pull the A.B.S. motor off the Brake Pedal Modulator Valve. First disconnect the ground wire and then remove the bolts that hold the electric motor on the valve. The bottom bolt on mine was on there really good. I striped the head on the bolt so I drilled the head off the bolt to get the motor off.
    Attached Images

  9. #8
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    As you can see in the image above...I had to weld a nut on the bolt to extract the broken bolt off the unit. Here is the result...bolt extracted!
    Attached Images

  10. #9
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    The next step is to take the motor to a vice and using a chisel or screw driver split the cap off the top of the motor. This unit was not made to be serviceable so you're gonna have to use some finesse removing the cap. On my unit the clips on the housing that hold the magnets in place where deteriorated, so I went to the junk yard and picked up another motor for $20.00. I took this motor apart and using a center punch I knocked out the rivets holding the clips in place. Then I took the clips to a grinder to remove the rest of the rivet that was still on the clip. I then found some small nuts and bolts and used them to connect the clips to the housing. Here's what it looked like when I was done.
    Attached Images

  11. #10
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    The next step is to put the motor back on the unit.
    Attached Images

  12. #11
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    Next you have to put the circuit board with the brushes on it in place.
    Attached Images

  13. #12
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    Ok, we are almost done. Now put the cap on the motor and put the bolts back in that hold the motor to the unit. After that...connect the ground wire and you're done. This solved my c1243 issue. Lights are off the dash and first gear is back. Hope this helps others out there. The whole project took me three hours to complete and cost me $20.00. GOOD LUCK!
    Attached Images

  14. #13
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11

    Re: TCS C1243 on 98 Deville

    A new Brake Pedal Modulator Valve cost $1,287.00 from the dealer. No thanks, I'll rebuild my old motor.

  15. #14
    Caddie Man is offline Cadillac Owners Member
    Automobile(s): 1998 Sedan Deville
    Join Date
    Mar 2010
    Location
    Buffalo, N.Y.
    Age
    50
    Posts
    11
    How do you delete a post?

  16. #15
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    73,808

    Re: TCS C1243 on 98 Deville

    Caddie Man, this thread is over a year old, but this would be a nice addition to the Tech Tips section if you can repost it in one post.

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