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Ebcm?
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dan073eb
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PostPosted: Sun Dec 28, 2014 11:42 am    Post subject:  Ebcm? Reply with quote

Has anyone replaced one? My traction off and abs lights are on, along with service traction system in the message center. My mechanic had me order one, said that's the problem. Just wondering.
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98ss
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PostPosted: Sun Dec 28, 2014 11:53 am    Post subject:   Reply with quote

The bcm has to be programed by a tech 2. It is not plug and play.
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dan073eb
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PostPosted: Sun Dec 28, 2014 12:47 pm    Post subject:   Reply with quote

Right, but I'm talking about the EBCM, not the BCM. The EBCM (electronic brake control module) controls the abs and traction control. This is what I bought:

http://www.rockauto.com/catalo.....ttype,1844
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Pitch Black SS
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PostPosted: Mon Dec 29, 2014 2:46 pm    Post subject:   Reply with quote

sounds more like a hub or hub wiring issue, extremely common on these cars. Exact same waring lights as you have

A good scanner can pinpoint the exact wheel, check the harness for frayed wires or corrosion on the connector

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ZSPOT
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PostPosted: Mon Dec 29, 2014 5:22 pm    Post subject:   Reply with quote

Yes. I haven't replaced mine, but we do get calls for them. I know that member Frank had to replace his a few years ago also. Usually a salvage yard one is the way to go since these things cost so much

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Frank
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PostPosted: Wed Dec 31, 2014 12:53 am    Post subject:   Reply with quote

Mine ended up being a ground issue - the EBCM will function for a while with its ground disconnected (I think it was grounding through the body instead and then it got cranky and stopped working). Once I cleaned and reconnected the ground (when I went to swap the EBCM) it started working normally again. Wink From what I've seen, it's pretty rare for them to go bad.

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dan073eb
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PostPosted: Sun Jan 04, 2015 10:13 am    Post subject:   Reply with quote

Still haven't got it figured out. Been into my mechanics twice now. Might bring it in to have another look this saturday. Here's what's done and what he'd told me: He's checked all the wiring from the front to the wheels/wheel bearings, everything looks good. Before the ebcm was replaced, his reader was saying the problem was coming from the right rear wheel. Yesterday he swapped out the ebcm with my brand new $200 ac delco ebcm i brought him, took it out for a drive, the lights came back on, he read it and the problem was coming from the LEFT rear wheel. wtf? time to trade it in?

Frank wrote:
Mine ended up being a ground issue - the EBCM will function for a while with its ground disconnected (I think it was grounding through the body instead and then it got cranky and stopped working). Once I cleaned and reconnected the ground (when I went to swap the EBCM) it started working normally again. Wink From what I've seen, it's pretty rare for them to go bad.


Can you tell me a little more about what u did? Was your ground completely disconnected for some reason? Mine looks connected ok, but looks like it could use a good cleaning and looks like where it sits a little water might somehow collect there. Did you re-position urs in a different spot?
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PostPosted: Sun Jan 04, 2015 11:00 pm    Post subject:   Reply with quote

The ground was completely disconnected after I changed out my intake and was that way for a while. I cleaned the terminal and the body where the ground bolt went in and bolted everything back together. I also did the same with the ground on the radiator support and the main body ground by the battery.

Pretty strange that it is saying that two different spots are bad.

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PostPosted: Mon Jan 05, 2015 1:15 pm    Post subject:   Reply with quote

It wouldn't be unheard of for 2 to be bad at the same time... before I dumped my Intrigue both front hubs were causing issues for the EBCM shorted out on me.

That being said, if his scanner said it was the right rear wheel before, did he do anything to address that issue before swapping the EBCM?

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dan073eb
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PostPosted: Mon Jan 05, 2015 10:19 pm    Post subject:   Reply with quote

Frank wrote:
The ground was completely disconnected after I changed out my intake and was that way for a while. I cleaned the terminal and the body where the ground bolt went in and bolted everything back together. I also did the same with the ground on the radiator support and the main body ground by the battery.

Pretty strange that it is saying that two different spots are bad.

Cross your fingers, my lights went away after my brother and I cleaned the ground. Not right away but after I drove it and let it sit yesterday afternoon. Have driven it quite a bit since and still no lights. Knock on wood.
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PostPosted: Wed Jan 07, 2015 8:33 pm    Post subject:   Reply with quote

Welp, still not fixed, lights came back on today. And of course during bad weather when I needed it most.
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PostPosted: Thu Jan 08, 2015 3:13 pm    Post subject:   Reply with quote

it happened to me, they changed the hub under warranty thinking it was the wheel speed sensor, which is embedded in the hub. It worked for a few days, then the problem popped up again. Then they found a chewed up wire harness leading to the hub. Worn from road hazards i guess. Replaced harness. That fixed it for good.

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PostPosted: Thu Jan 08, 2015 6:22 pm    Post subject:   Reply with quote

I got so feed up with my rear brake harness...one day left side..next day right side... I replaced the hole thing with one I got from ZSPOT. If your mechanic cuts into the wire and finds it black inside that mite be your problem.. Also because you said bad weather made the light come back on .Thats when my troubles started.

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dan073eb
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PostPosted: Sat Jan 10, 2015 9:47 am    Post subject:   Reply with quote

bigdog60 wrote:
I got so feed up with my rear brake harness...one day left side..next day right side... I replaced the hole thing with one I got from ZSPOT. If your mechanic cuts into the wire and finds it black inside that mite be your problem.. Also because you said bad weather made the light come back on .Thats when my troubles started.
Anything special about the wiring harness you got? I'm thinking that might be the next thing I try. Something like this?

http://www.rockauto.com/catalo.....pk=2677726
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PostPosted: Sat Jan 10, 2015 2:33 pm    Post subject:   Reply with quote

I would inspect the right rear wheel hub / wiring before throwing any more money at it. If his scanner is pointing at that specific wheel, start there

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