: 1999 STS Traction Control off......Unable to turn it on.



alexleesalinas
03-16-09, 10:47 PM
Traction Control off......Unable to turn it on.
Just bought a 1999 Seville STS with two that I hope are simple easy to fix problems. The Traction Control is off and I am not able to turn it off. I press the button and nothing....Not sure if its related, but the car is really slow at full throttle from dead stop. It does not set me back on my sit like I've read that it should. When I bought it was equiped with 20" wheels and don't think that is a problem. I set the original wheels side by side with little difference in height. Hoping that it is an easy fix.:)

Which muffler is recommanded and which one should I buy?


Thanks:worship:

ryannel2003
03-16-09, 10:51 PM
The best thing to do is check for codes using your in-dash code scanner. Look in Seville/Eldo forums for information about how to pull them. That should tell you what you need to get it fixed. Anything "Current" is where we need to start.

STSj90
03-16-09, 11:09 PM
I think with traction control off it disables first gear. So thats more than likely why its sluggish on take off.

Ranger
03-16-09, 11:14 PM
Yeah, there are some failures (DTC's) that will disable TCC & 1st gear.

alexleesalinas
03-17-09, 12:27 AM
The best thing to do is check for codes using your in-dash code scanner. Look in Seville/Eldo forums for information about how to pull them. That should tell you what you need to get it fixed. Anything "Current" is where we need to start.

Have Code C1217...Forgot to mention that I also had the ABS & Traction being displayed on the dash. Front heated seats don't work either. Read that the ignition switch could or is the problem. ?????????????:bonkers:

ryannel2003
03-17-09, 12:30 AM
There was a thread not to long ago with a guy who had the exact symptoms you describe. His car would randomly set these codes, and I believe he suspected the ignition switch. He is supposed to be getting it fixed soon.

EDIT: Here is the thread
http://www.cadillacforums.com/forums/cadillac-seville-cadillac-eldorado-forum/156221-frustrating-abs-tcs-issue-1999-seville.html

Submariner409
03-17-09, 08:14 AM
You have a fair amount of change to spend correcting the ABS/TC problems. That is your first priority and is why the transmission is defaulted into a second gear start and TC is commanded off. No way around it unless you fix the basic problems.

Front heated seats are usually burned/broken heater elements. Requires complete removal and disassembly of the seat and then either solder the element break(s) or install new service replacements.

The CORSA exhaust system will give you a few HP at redline, nothing in the midrange (same for all others), and unlike all the others, will not drone you out of the car. BUT it's going for around $1200 - $1450 online. Easy install but you must have a frame lift. A simple muffler exchange does absolutely nothing except make more noise and hummmmmmm !!!!!! all day.

alexleesalinas
03-17-09, 12:27 PM
There was a thread not to long ago with a guy who had the exact symptoms you describe. His car would randomly set these codes, and I believe he suspected the ignition switch. He is supposed to be getting it fixed soon.

EDIT: Here is the thread
http://www.cadillacforums.com/forums/cadillac-seville-cadillac-eldorado-forum/156221-frustrating-abs-tcs-issue-1999-seville.html

To make sure the relay was working....I turned on the car and removed the relay (IGN3). I could hear and feel it trip when I would try to put back in and the abs/tcs would go off but than come back just as quick. Also when i would do what I just mentioned, I could hear a click coming form the front of the car and thats when I would get the ABS/TCS on the dash. My rear view mirrow would go off and on as well which means that my relay was working all this time and my problem was not that my relay wasnt getting voltage required to trip. My ground is good(no rust) so my next step is to check is the connections on the ABS/TCS......

Do you guys think my ABS/TCS is dead?

JimD
03-17-09, 01:09 PM
....Do you guys think my ABS/TCS is dead?

Well.... can't be sure what is dead or dying but your "C" code is pointing right at the condition;
C1217 - Pump Motor Shorted to Ground

The pump motor in question is part of the EBTCM. With some time and tools, it is possible to remove the EBTCM, open it up and repair the short circuit condition, or replace the motor. Sourcing the motor might be a challenge.

It would be worth carefully inspecting the chassis wiring harness at the EBTCM before throwing any money at the problem.

Mark C
03-17-09, 05:38 PM
The motor is on the BMPV section of the ABS unit (the fluid side of the unit). Assuming its not a problem in the wiring, or the connector to the EBTM or the smaller one below it going from the EBTM to the pump motor itself, your looking at a new BMPV. Get one off of Ebay or a bone yard, as they list for about 800 bucks from a dealer.

alexleesalinas
03-17-09, 08:45 PM
The motor is on the BMPV section of the ABS unit (the fluid side of the unit). Assuming its not a problem in the wiring, or the connector to the EBTM or the smaller one below it going from the EBTM to the pump motor itself, your looking at a new BMPV. Get one off of Ebay or a bone yard, as they list for about 800 bucks from a dealer.

So there is two parts...The EBTM and BMPV....

The BMPV is that one that looks like a cylinder and the EBTM has all the lines going into it...right...does any body have a picture of it?

Submariner409
03-17-09, 09:02 PM
Here's the EBCM from a 2002 Seville - you go in by removing the driver's wheel/tire and inner fender liner to gain access. Clean everything to hospital grade then, beginning with electrical connections, take it apart. You are in for no picnic.

Mark C
03-17-09, 09:10 PM
The ABS unit is down in the drivers side front corner of the engine compartment, under the water pump and radiator hoses and consists of the BMPV half, and the EBCM half. The EBCM is basically the control unit for the whole assembly and contains 12 coils that operate solenoid valves in the BMPV half that open and close to apply and release the brakes at each wheel as needed based on the individual wheel speeds. Thats what makes the horrible buzzing sound when the abs system engages. The pump supplies the required fluid to keep the pressure up in the system. The BMPV is the inner half of the unit (closest to the engine) and the EBCM is the outer half (closest to the wheelwell). The BMPV has at least 6 brake line connections on it and requires the brakes to be bled if you remove it, it also contains the ABS pump (cylindrical thing sticking out the engine side of the unit). The EBCM is purely electronic and is held onto the BMPV with 6 small screws. Other than those 6 screws it has a large electrical connector that receives the power and control wiring from the car, and a smaller connector on the bottom of it that passes power to the ABS pump unit. The EBTM is easy to replace if you pull the inner sheild out of the drivers side wheelwell. The BMPV is not as fun mainly because the brake lines all have a tendancy to rust down in that corner of the engine compartment and are real easy to break. Also if you buy a brand new ABS unit that has never been programmed, it needs to be done by a dealer, if it came out of an existing car its usually not a problem. There are also at least 2 different types of EBCM/BMPV units. One for cars with active braking and one for cars with just reguolar ABS. If your getting a service suspension message along with traction control and ABS messages then you have active braking (RPO JL4 I think). If you just have traction control and ABS warnings then you have a regular ABS system.

Mark C
03-17-09, 09:27 PM
In the picture above item 3 is the BMPV and item 4 is the EBCM (or EBTCM depending on what people call them). Item 1 is the main electrical connector the the EBCM and item 2 is the connector from the EBCM to the ABS pump.

alexleesalinas
03-18-09, 11:26 AM
In the picture above item 3 is the BMPV and item 4 is the EBCM (or EBTCM depending on what people call them). Item 1 is the main electrical connector the the EBCM and item 2 is the connector from the EBCM to the ABS pump.

The code I am getting is Code C1217 Pump motor short to ground...Has any body tried to repair it themselfs or tried to find where the short to ground is in the Pump..

Mark C
03-18-09, 12:32 PM
I don't think you can get the pump out of the BMPV, I know you cant get it out with the unit installed in the car so once you pull the unit out your going to need a new one to be able to move the car. I've got a spare sitting on my shelf in the Garage, I'll take a couple of pictures of the pump and post them up, but it will be later tonight before i get a chance to do it.

Mark C
03-18-09, 11:16 PM
These are pictures of a 2000 to 2004 Deville BMPV w/o the active braking option.

Heres the pump side of the BMPV. Top of the motor is held on with two small cap screws with torx head socket. Don't know if you can pull the motor rotor out of the housing if you pull the end cover off. There are no other external bolts that hold the pump motor to the BMPV. Don't know how long the cap screws are or if the whole motor comes off the BMPV once they are removed. My screws have some kind of epoxy sealant over the end of the bolt and in the torx sockets, one I could pick out with my hand, the other came off the head of the bolt but wouldn't come out of the socket.

http://home.townisp.com/~markcanning/camaro/MVC-002F.JPG

Bottom of the unit showing the power cable from the EBCM to the pump.

http://home.townisp.com/~markcanning/camaro/MVC-003F.JPG

Rear of BMPV showing the ends of the solenoid valves that are controlled by the coils in the EBTM. The six holes are for the cap screws that hold the EBCM unit onto the BMPV half.
http://home.townisp.com/~markcanning/camaro/MVC-005F.JPG