Will a 95 eldorado ebtcm fit a 96?

[9BlackN*Black6]

Found a junk yard with a 95 eldo and they said it would fit in my 96, Are they right?
Heres what the ad says:
95 96 Deville Seville Eldorado ABS Unit 1273

Please read the terms and instructions of this listing before emailing or purchasing. This auction is for a used ABS Anti Lock Bracking Pump



DEVILLE 95-96 Assm

ELDORADO 95-96 Assm

SEVILLE 95-96 Assm



Hollander Interchange #: 545-1273

I have code PC1571 and get No TCS Data when i scroll thru codes. I can get this module from them for $55 so if it will work in my 96 ill have a steal!

[9BlackN*Black6]

Also Ive called the dealership and the guy told me AC Delco P/N 25633191 @$730, just cant find anything on that "Hollander Exchange" #.

[clarkz71]

According to GM parts direct, 95 & 96 are the same.

[Kdirk]

Uh,

I can't imagine a 95 module would work in a 96, for one reason:

1995=ALDL 8192 data communication protocol (older, slower 8 Kbits/second GM proprietary data bus for on board computers/module to talk to each other) and is also OBDI.

1996-2002 or so=GM Class II (MUCH faster and more complex communication protocol for the modules to talk to each other) and OBDII.

This alone would make the interchange impossible, as the EBTCM controls the braking and traction control systems, and as such is very tightly integrated with the vehicle sensors/electronics.

Some other (potential) bad news is that some modules may have the vehicle VIN "stored" and will need the correct VIN talk to other modules in the same car. Thus, a salvage part may still mean a trip to the dealer for some quality time hooked up to the Tech II for some brainwashing. I do not know for certain if this applies to the EBTCM in 96 model year cars or not, but is something to consider.

My advice, look for a salvage part from a 96 only if you aren't buying new, don't trust the hollander interchange data (which is a service used by salvage yards), it is not always correct.

KDirk

[clarkz71]

It's not impossible. I looked it up on GM parts direct. Again, they list the same part # for 95 & 96, 25633191. This is a GM dealer, not Hollander. It's not hard to verify. Just call any dealer and ask them.

[clarkz71]

Here's the impossible verification that 95 & 96 are the same part from AC Delco's web page.

click the link below.

http://198.208.187.182/internet/Vehi...&part=25633191

[Kdirk]

If one part works for both years I would be mightily surprised, but will stand corrected if it does. Just seems awfully strange that a part from a GM ALDL 8192 network/OBDI car could still work in a class II/OBDII compliant vehicle.

Maybe the 1995 part was designed for hybrid/dual system compatibility to work in either application if it was spec'd just prior the the changeover. My experience is that most electronic (module/computer) parts for 95 and back _almost_ never work in 96 and up and vice versa because of the changes I mentioned.

Please advise on what you find here, as I would like to know to satisfy my own curiosity.

KDirk

[clarkz71]

If you looked at the cross reference from the AC Delco link above the EBTCM is also the same for your DeVille 95 & 96 as well as Seville's 95 & 96.

[jadcock]

That does surprise me, that the modules are the same. Let us know how it works out!

[Kdirk]

clarkz71-

Just to clarify - I'm not disputing your posts in any way, or looking to start an argument. What you have posted is absolutely correct, and if the dealer says it works, great; that means the original poster can use the salvage part he located instead of getting hosed with a $730 new part cost.

I'm just surprised at the interchangeability knowing what I do know about the fundamental differences between the two model years involved. Must be a hybrid or transitional module made to work in either setup - which is entirely possible if somewhat unusual. I do hope 96BlackN*black6 will post back to confirm how this works out after the replacement module has been installed.

KDirk

[clarkz71]

No problem, I didn't take it the wrong way.

[9BlackN*Black6]

Just called to get details and they said it would work and if not they would refund my money, so i bought it, for $55 i know i cant loose,as long as it works. Thanks for the feedback guys! Soon as i the new module ill install and let ya guys know. BTW heres the link to the part:
http://cgi.ebay.com/95-96-Deville-Se...QQcmdZViewItem

[9BlackN*Black6]

Well the place I was getting the EBTCM told me it was a bad part, so I had to hunt for another one. After calling about 10 bone yards I found one, $50 the whole abs pump. So I took the module off the pump, had a heck of a time getting case off, busted 3 torx bits and finally got vise grips to get a bite on the lower middle stud on the module side. Went to take out of the car, and its such tight quarters, Im thinking I have to take the coolant hose off and remove the whole pump. Im getting ready to change coolant anyways so figured Id do both jobs. I just scored a FSM, anyone got any avice on R&Ring ebtcm?

[ewill3rd]

First of all, just because '96 began OBD II doesn't by any stretch mean that all systems on the car went class 2.
In fact it took many years after that for that change to occur.
I'd have to get the book out to see which modules are which, but the OBD I communication protocol (UART) was used for a long time until they could revamp the internals on the other systems. Class 2 was mandated for powertrain systems but not all vehicle control systems.

Replacing the EBCM can, and should, be done without removing the valve block.
If you remove the valve you are going to have a bleeding nightmare on your hands.
It is hard to gain access to do the work, but it is not that hard.
Remove the air cleaner housing, find the 3 10mm nuts that hold the unit in place and loosen them. Disconnect the electrical connector and move it as far out of the way as possible.
Get under the car and working between the frame and radiator support lift the unit up and remove the large center stud.
Then remove the 4 corner screws and lift the unit back up and gently and carefully separate the two halves.
Installation is reverse of the removal procedure.
I don't think those years required any programming so it should be plug and play.

I hope when you are done that was actually the problem.
Make sure to use the right size torx bit or you'll be in world of hurt when the heads strip out.


Good luck.

[ewill3rd]

Oh and on a side note, if you want to see if there are any UART modules in your car, look at the DLC.

Pin 9 is reserved for UART communications, Pin 2 is for class 2.
If there is a pin in cavity 9 then there are UART modules in the car.


If someone needs I can find a picture of a DLC to show you which pin is which.