C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Ecbm (1999) complete delete (been searching)

Thread Tools
 
Search this Thread
 
Old May 30, 2023 | 11:45 PM
  #1  
Cbibb's Avatar
Cbibb
Thread Starter
Instructor
Liked
 
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
Default Ecbm (1999) complete delete (been searching)

Hey guys on my 99c5 I want to completely delete the ecbm (abs/traction control) for various reasons. The ecbm in my car works perfect now so would sell it after removing. One of the reasons I want to delete is most likely going holley terminator in the future. I took a video of my car showing no dash lights so that a perspective buyer can see that it works with no issues. I then unplugged the ecbm and had a "service vehicle soon" message. From all the searching I have done I was expecting messages and of course the lights, but never saw anything about "service vehicle message".

I cannot drive the car now as i just put it on jackstands in preparation for a torque tube rebuild (fun). Will this cause the car to go into limp mode or anything like that?

I was planning on just pulling the bulbs after removing. From the searching I know I will have to clear the other messages everytime i drive it.

I also read about all the issues with removing it and having an automatic transmission with torque management etc. My car is a manual, will i have any issues in that regard?

I just want the car to run/drive normally after removing the ecbm. Any feedback/advice is definitely welcome. Thanks guys

Edit already have the lines, prop valve all figured out.
Reply
Old May 31, 2023 | 08:21 AM
  #2  
Toys4Life C5's Avatar
Toys4Life C5
Melting Slicks
Conversation Starter
Liked
Loved
Community Favorite
 
Joined: Nov 2016
Posts: 2,307
Likes: 1,582
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
Default

Following. There hast to be more than a few people that know the answers from first hand experience.
Torque management between shifts (auto cars) I would think will still work as it is a calculated value I believe. Torque management (traction control) from wheel slippage certainly will not work since the EBCM is gone.
Reply
Old May 31, 2023 | 07:40 PM
  #3  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

Go to the SERIAL DATA BUSS CONNECTOR in the passengers foot well to the left of the BCM, between the carpet and tunnel and de-pin the serial data wire for EBTCM. It will be in the connector with the most wires.
See if that makes any IPC lights go out. Don't have my service manuals so cant give you a pin position or wire color.
HEY, If it doesn't change anything, you can just pop it back in the connector.
That data wire is how the EBTCM communicates to other modules.
Reply
Old May 31, 2023 | 09:50 PM
  #4  
Cbibb's Avatar
Cbibb
Thread Starter
Instructor
Liked
 
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
Default

Originally Posted by Bill Curlee
Go to the SERIAL DATA BUSS CONNECTOR in the passengers foot well to the left of the BCM, between the carpet and tunnel and de-pin the serial data wire for EBTCM. It will be in the connector with the most wires.
See if that makes any IPC lights go out. Don't have my service manuals so cant give you a pin position or wire color.
HEY, If it doesn't change anything, you can just pop it back in the connector.
That data wire is how the EBTCM communicates to other modules.
Thank you. Ill do some searching and see if i can locate which wire that would be. Im glad you chimed in, I have read tons of things you have posted/replied to. Very knowledgeable person to pay attention to. If you happen to find out which wire/pin location before I do, I definitely won't be upset if you post it!
Reply
Old Jun 1, 2023 | 06:25 AM
  #5  
oelarse's Avatar
oelarse
Burning Brakes
Supporting Lifetime
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2011
Posts: 996
Likes: 306
From: Southern Norway , Europe
Default

Here is the schematic of the star connectors on the serial databus and the locations of them on the left side of the body control module in passenger footwell



Reply
Old Jun 1, 2023 | 08:38 AM
  #6  
Cbibb's Avatar
Cbibb
Thread Starter
Instructor
Liked
 
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
Default

Originally Posted by oelarse
Here is the schematic of the star connectors on the serial databus and the locations of them on the left side of the body control module in passenger footwell


Awesome thank you so much for that! I have to go out of town today but as soon as I get back I will get busy. I really appreciate it
Reply
Old Jul 27, 2023 | 09:35 PM
  #7  
Cbibb's Avatar
Cbibb
Thread Starter
Instructor
Liked
 
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
Default

Hey guys sorry for the late update. Had some personal and family things come up. Finally had a chance to try this suggestion. I de pinned that wire and all the tcs,abs lights were on as well as the service vehicle soon message. I plugged it back in and all went away again as my ecbm is good in my car. Apparently there was a company revolution electronics that made a device that used the suggested wire and with their box it kept the dash lights and error codes off. Apparently they had some legal issues and had to stop producing them as of now until they work some details out. I would love to be able to find one of those. But will likely have to wait until they work out whatever issues they had legally. But apparently it definitely has something to do with the wire that bill suggested ID pin to try. Unfortunately it didn't work out. I just wanted to update the post to let you guys know what I found when I tried the suggestion trick
Reply
Old Dec 18, 2023 | 10:58 AM
  #8  
jlturpi's Avatar
jlturpi
Instructor
10 Year Member
 
Joined: May 2013
Posts: 184
Likes: 22
Default

Is your EBTCM a V code one?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Dec 18, 2023 | 11:01 AM
  #9  
Cbibb's Avatar
Cbibb
Thread Starter
Instructor
Liked
 
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
Default

Originally Posted by jlturpi
Is your EBTCM a V code one?
I'll have to see if I can see if it is. Mine has active handling if that tells you anything? I'll check when I get a chance.
Reply
Old Dec 18, 2023 | 11:17 AM
  #10  
jlturpi's Avatar
jlturpi
Instructor
10 Year Member
 
Joined: May 2013
Posts: 184
Likes: 22
Default

I sent you a PM.
Reply
Old Dec 20, 2023 | 06:56 AM
  #11  
jlturpi's Avatar
jlturpi
Instructor
10 Year Member
 
Joined: May 2013
Posts: 184
Likes: 22
Default

Originally Posted by Bill Curlee
Go to the SERIAL DATA BUSS CONNECTOR in the passengers foot well to the left of the BCM, between the carpet and tunnel and de-pin the serial data wire for EBTCM. It will be in the connector with the most wires.
See if that makes any IPC lights go out. Don't have my service manuals so cant give you a pin position or wire color.
HEY, If it doesn't change anything, you can just pop it back in the connector.
That data wire is how the EBTCM communicates to other modules.
I sent you a PM. Just wanted to make sure you saw it.
Reply

Get notified of new replies

To Ecbm (1999) complete delete (been searching)





All times are GMT -4. The time now is 07:37 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE