ABS Light Due to Brake System Control Unit Failure on Chevrolet S10

Problem Description and Possible Solution

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

Problem Data
RepairPal Verified
Average mileage: 123,848 (19,500–271,000)
15 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
213 people reported this problem
Viewing 1 - 20 of 82 comments
While driving the ABS lights on along with the Brake light. Sometimes they are both off during my trip to work and don't come on for a day or two. If its a sensor can it be replaced when new breaks are installed? Or can I replace the sensor by taking off the wheel hub my self?
ABS and Brake light come on at intermittent times after I start driving my 2001, 2WD S10. Dealer charged me $50 to check and said a relay in the ABS system was bad. They wanted $1300 to fix it. This problem started around 2004. About six months ago I came across this problem on something I read, and found out it is a COMMON problem with this brake system. Still no recalls. Worst, if you pay the $1300 for the same relay, how long is it going to last?
The ABS light comes on and the abs kick in even when I don't need it making it hard to stop quickly at low speeds.
abs and emergency brake light come onsome time and stay until I restart the truck then it will come onagain later
The problem is not fixed. The light is off when I start the vehicle and as soon as I step on the brake pedal the light will illuminate and stay on for the duration of the drive. No problems with the brakes as far as stopping.
I would like to know what to check and how to check it.
The ABS system engages at low speed when normal brake pressure is applied. The brakes are then rendered useless.
ABS system started to come on when easily braking. Then, it finally stopped and the ABS light came on. ABS system no longer works.
My 1994 s-10 v6 has brake prob but i am complete rookie at this stuff but , i replaced rotors, pads,but when i changed the pads i pushed calipers in with a c clamp & someone told me that i might have disturbed all the junk in bottom of box where u fill brake fluid up & prob need new calipers (only like $15!) new calipers , , bled the brake better but not gone away now notice abs light coming on periodically , & brakes dont work everyy once in awhile but dont go to the floor ... Just like a caliper is not working or locking up pulls to left
Any help much appreciated
The ABS and Brake warning lights came on about 12 years ago, and have stayed on ever since. I've successfully ignored them.
Turned out that the problem was a shorting ABS sensor in the right front wheel hub. Designed so that you cannot replace just the sensor. I had to replace the entire wheel hub. Problem is fixable, but you should redo the brakes at the same time.
I had a 1995 s10 2wheel drive pickup that had this problem.The dealership told me the part was 1400 dollars not counting installing the part.I put black tape over the lights and drove it with manual brakes for years.Then i bought a 2003 s10 with zr2 package(I love the truck) but the abs light comes on with the emergency brake light intermittly and i had to buy a abs code reader to cancel the abs code every time it comes on ?The zr2 is a wonderful vehicle that fits my needs like a .glove.The abs code reader read rear wheel speed sensors were getting erratic readings,so i cleaned up the rust around the sensors and cancelled the code.Then it threw another abs code co265(ebcm relay circuit open) which tells me the EBCM controller is going bad,so i will pull fuse and drive with manual brakes untill i figure out how to solve this problem?Why has GM not had a recall on this by now?This is a very serious driving hazard it needs a recall.
abs light kept coming on then going off at random moments and the brakes build pressure and it also is the reason i wrecked my truck. maybe they should fix this!!!
when my ABS stared to fail I almost got into a few fender benders. I brakes would not respond! this absolutely should be a recall worthy issue. for my solution I simply took out the ABS fuse. Problem solved. No abs but I can Brake safely.