LT1-LT4 Modifications 1993-97 Gen II Small Block V8

abs light on

Thread Tools
 
Search this Thread
 
Old Mar 25, 2010 | 08:42 PM
  #1  
2fast4u1989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2010
Posts: 188
Likes: 0
From: richmond, va
Default abs light on

i have a 1995 formula lt1. my "abs inop" light came on today. i restarted the car and the light turned off but came back on 20 min later. how do i fix this? is this bad?
Reply
Old Mar 25, 2010 | 08:46 PM
  #2  
AnnivSS's Avatar
TECH Enthusiast
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 591
Likes: 235
From: Lewisville, TX
Default

Mine did the exact same thing, every time id hit the brakes firmly my abs inop light and ars off (trac control) lights would come on and wouldnt reset until i restarted the car. The issue was my electronic brake control module. Its a black box bolted to the front of the aluminum abs block under the hood. Chevrolet wants around $1300 for the part, I picked up mine from a local salvage yard for $125. Its one plug and 4 bolts to install it.
Reply
Old Mar 25, 2010 | 08:51 PM
  #3  
2fast4u1989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2010
Posts: 188
Likes: 0
From: richmond, va
Default

was ur car an lt1?
Reply
Old Mar 25, 2010 | 08:54 PM
  #4  
AnnivSS's Avatar
TECH Enthusiast
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 591
Likes: 235
From: Lewisville, TX
Default

No but the braking systems didnt change much. Theres a code in the computer, if you want to be sure take it to the dealer and pay them an hours diagnosis time (usually about $120) and they will pull the code.
Reply
Old Mar 25, 2010 | 08:59 PM
  #5  
Counted Out's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Feb 2008
Posts: 1,714
Likes: 0
From: Tucson, AZ
Default

Check to make sure your 3rd brake light is working.
Reply
Old Mar 25, 2010 | 10:42 PM
  #6  
94fixerTA's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2009
Posts: 173
Likes: 0
From: Fort Worth, TX
Default

I have a spare abs system with all that junk if your interested.
Reply
Old Mar 25, 2010 | 10:47 PM
  #7  
jtbadboyz28's Avatar
Registered User
 
Joined: Mar 2010
Posts: 11
Likes: 0
From: TX
Default

check 3rd brake light that fixed mine
Reply
Old Mar 25, 2010 | 10:56 PM
  #8  
kaganader's Avatar
Launching!
iTrader: (11)
 
Joined: Oct 2009
Posts: 216
Likes: 0
From: East Meadow, NY
Default

Mine always used to do this to me when it was cold out, now that its warming up it hasn't shown its ugly face.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-1

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-2

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-3

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-4

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-5

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-6

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-7

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-8

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-9

10 Camaros You Should Never Buy

 
Old Mar 25, 2010 | 11:14 PM
  #9  
bongva's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jul 2008
Posts: 726
Likes: 0
Default

same problem with mine.... problem started after my last dyno session, i double checked everything underneath my car, everything turned out fine. no messed up plugs or anything, and the light is still on!!! cant figure it out! But i shall check the third brake light, and swap the black box with my brother.
Reply
Old Mar 25, 2010 | 11:25 PM
  #10  
1994formulalt1's Avatar
TECH Regular
 
Joined: Jul 2007
Posts: 478
Likes: 0
Default

3rd brake light on mine did it
Reply
Old Mar 25, 2010 | 11:26 PM
  #11  
2fast4u1989's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2010
Posts: 188
Likes: 0
From: richmond, va
Default

you mean the 3rd brake light on the spoiler? it comes on fine. all my brake lights come on fine. what stuff can i check?? are there any sensors or anything? if it stays on is it bad, like will me brakes mess up?
Reply
Old Mar 26, 2010 | 01:13 AM
  #12  
Counted Out's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Feb 2008
Posts: 1,714
Likes: 0
From: Tucson, AZ
Default

Originally Posted by 2fast4u1989
you mean the 3rd brake light on the spoiler? it comes on fine. all my brake lights come on fine. what stuff can i check?? are there any sensors or anything? if it stays on is it bad, like will me brakes mess up?
It just means your ABS won't work.
Reply
Old Mar 26, 2010 | 02:14 AM
  #13  
z28boycali's Avatar
On The Tree
 
Joined: Mar 2010
Posts: 153
Likes: 0
From: BAY AREA
Default

mine does the same things lately i taught it was the need of breaks so i went ahead and changed them.
buh naw that wasnt the problem.
i bleeded out my breaks wasnt that either ima agree with ANIIVSS it must be the ABS the system. its easy to take of buh really spensive for what i know i need to get mine!
if you dont know where the ABS system is under the hood its on the drivers side right next to the break fluid little tank.
and to be honest yes its bad. at times it will take it longer to stop, so mean while take it a little easy and take a few extra secs breaking.
Reply
Old Mar 26, 2010 | 02:24 AM
  #14  
Counted Out's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Feb 2008
Posts: 1,714
Likes: 0
From: Tucson, AZ
Default

Originally Posted by z28boycali
mine does the same things lately i taught it was the need of breaks so i went ahead and changed them.
buh naw that wasnt the problem.
i bleeded out my breaks wasnt that either ima agree with ANIIVSS it must be the ABS the system. its easy to take of buh really spensive for what i know i need to get mine!
if you dont know where the ABS system is under the hood its on the drivers side right next to the break fluid little tank.
and to be honest yes its bad. at times it will take it longer to stop, so mean while take it a little easy and take a few extra secs breaking.
I didn't notice any difference when my ABS light was on. I'm pretty sure the ABS only kicks in when you make a skidding stop.
Reply
Old Mar 26, 2010 | 08:10 AM
  #15  
AnnivSS's Avatar
TECH Enthusiast
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 591
Likes: 235
From: Lewisville, TX
Default

Check salvage yards for the part. Personally if it was me instead of chasing the problem for months on my or paying the $120 to get the codes checked. Id go buy a brake control module from a salvage yard for $125 and if it didnt fix it, most salvage yards will usually take returns if its not damaged.
Reply
Old Mar 26, 2010 | 09:58 AM
  #16  
brettmc's Avatar
Banned
 
Joined: Sep 2009
Posts: 213
Likes: 1
From: st louis, mo area
Default

There's a sensor on the rear axle. If that goes bad, it will trip the abs inop light.

Brett
Reply
Old Mar 26, 2010 | 11:29 AM
  #17  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Or you could see if the dealer will scan the EBTCM and pull the ABS codes.
Reply
Old Nov 20, 2013 | 10:10 PM
  #18  
BD93Z's Avatar
Registered User
 
Joined: Nov 2013
Posts: 13
Likes: 0
From: St Petersburg, FL
Default

Mine came on twice. I had the ABS, E Brake and Traction light come on all at the same time. My pedal dropped all the way to the floor. It was like my ABS was kicking on 100% but on dry ground. Luckily I was going slowly through a parking lot. Anyway, I replaced my ABS module (the small box under the driver side dash). So far no problem at all. Got it special order through Advance from Borg Warner for $200.
Reply




All times are GMT -5. The time now is 06:07 AM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE