EBTCM Location/Schematic/Pics

[fook76]

Hello all,

I need help finding the location of the EBTCM module on a Catera. I have a vague idea where it is, but if anyone knows (JeffreyG, looking in your direction!) of any sites or has a good description, please let me know.

Thanks so much,
Thom

[Vesicant]

From the front of the vehicle... look down and to the right of the engine - look down deep. Theres this aluminum block with 4 brake lines going into it. The EBTCM is bolted onto that valve block on the front.



Its in this area... you'll see it based from the photo from above:



I can take some photos myself of what it looks like on ours, if you want or are having problems finding it. We had ours replaced recently as well

[fook76]

Thanks Jeffery, I knew I could count on you to know!

Thanks,
Thom

[sircrunch]

how difficult is it to replace and how much time does it take?

[andriyp]

First of all, from what I was able to see, removing just the electronic module, leaving the brake system functional, is NOT possible - like in some other vehicles, based on the same Bosch module (e.g. Audi, Volvo)
Removing the EBTCM module takes about 4 hours on the first try - did it yesterday with my brother. One needs to remove the power steering tank (taking care to not spill too much fluid: sucking the fluid out is one option; can be reused), Engine computer (because the cable leading to it is in the way). Removing the battery and the three round connectors on the back was also helpful, but not sure if it was absolutely needed.
Then CAREFULLY, in order not to damage the nut edges, disconnect the brake pipes from the main cylinder and the ABS modulator (mark them properly to put back later). I'd suggest one works in rubber gloves, as the brake fluid is quite corrosive and collect the spilling fluid into some container like a styrofoam cup (not to be reused).
Bend the pipes slightly to the sides. Then, remove two nuts on the sides that are holding the EBTCM inside a large bracket bolted to the body. We also removed the heat shield from the engine side, not knowing if it was needed. Now, carefully pull the module out.

My question is the following: after removing the module, has anyone attempted to repair it?
In many sources I read that the problem is usually in the unreliable leads to the outside connector, that could be repaired by refreshing the soldering.

[chevyorange]

I'd be interested in if anyone has repaired theirs. Mine is showing bad in my 94 STS and I know it isn't going to be cheap.