99 C5 ebtcm
Thread Starter
Heel & Toe
Joined: Sep 2014
Posts: 24
Likes: 0
99 C5 ebtcm
service system on my display , code says there is a internal malfunction, tech 2 confirmed , My question is what is the electric motor looking motor on the brake control module do , how to check if it turns freely if it is a motor , cause I had the hvac / blower motor freeze up and I broke it free and now no problem . Ebtcm are not available through GM , so I want to exhaust all my options, before looking for a used one , cause I know they don't make or sell new ones , and 99s ( ebtcm ) are not rebuildAble .
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
We really can't help you since you have not shared what code or codes you have. I have seen cases where the pump ground was bad. If you have C1255 it may be something that can not be fixed at all.
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
i have the 1255 code of death. i can use a scanner and see that it is seeing everything it is supposed to. just no ability for ABS and TC to work because of the internal malfunction.
Instructor
Joined: Nov 2011
Posts: 181
Likes: 1
From: Franklin Square NY
Your choices are hunt down an ebcm (which one day will go bad again) which I did and it cost around 1500 or you can have the code deleted.
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Sure, it's the same drivetrain and chassis so why couldn't you? I doubt it would be cheaper though. Especially if you pay someone to do it.
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Instructor
Joined: Jun 2015
Posts: 118
Likes: 8
Your choices are hunt down an ebcm (which one day will go bad again) which I did and it cost around 1500 or you can have the code deleted.
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
Last edited by tandt; Aug 18, 2015 at 09:58 AM.
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
Your choices are hunt down an ebcm (which one day will go bad again) which I did and it cost around 1500 or you can have the code deleted.
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
With that said I have a question. Could you get a new pcm, ebcm and bcm and repin it to a 2004 corvette and just replace all the computers? Wouldn't that be cheaper?
Last edited by mrr23; Aug 17, 2015 at 08:51 PM.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
No, Tech 2 cannot. It can only change VIN related things in the PCM and BCM. They didn't want the dealer techs to be able to alter design aspects of the car.
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
But wouldnt you then get the p1571 and service engine soon like i did when the ebcm module quit communicating? Mine finally started communicating again after messing with the connector.
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Of course you'd get the ABS system failure messages, but the C1255 code would go away...
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
Much worse is my opinion. And the lights still stay on. I did read your thread back in 2012 about swapping to newer ebcm. Interesting read. One day someone will do the swap. Id consider it, but i drive mine everyday.