I have a 2001 Blazer (4WD,) and my ABS is engaging when it is not supposed to be. I just recently replaced the Wheel/Hub Assembly within the last 2 months, including brand new wheel speed sensors. My ABS light comes on and off, but stays on more than not. I inspected the wires, and the sensors again, but could not find anything. Hooked up the computer to it, and no codes came up. I'm lost right now, does anybody have any clue to what could be goin on? I took the fuse out for now, so it does not engage, but i would really like to get this fixed. Thanks.

 

When does it engage? Have you tested the mV-AC output from each of the front sensors with a multimeter while spinning the wheel? Did you use a full feature scan tool capable of accessing the EBCM (electronic brake control module)?

 

It's only when I am slowing down, and at low speeds. Typically anywhere from 0-15mph, but it's not consistent beyond that. I use a self help auto shop here in Germany (military) so i do not know if it was a full feature scan tool (will double check.) I will go back and check the outpul level of the sensors. Thank you, and I will let you know if I can figure it out. <---rookie at diagnosing issues! haha

 

Having the same exact prob with my 93

 

Check this thread out:
Brakes - Low Speed (below 5 MPH) ABS Activation

 

Thanks for the thread link, I'm going to give it shot. I'll let you know if this is the cure. Thanks again for your help!

 

Had the same thing happening on my 97. I just unplugged them and covered the light with electric tape so I didn't have to look at the light all the time lol

 

just remove the fuse it disables the abs

 

I noticed you removed the abs fuse more than a year ago....have you had any transmission problems? Is your tranny fluid dark? Do yu have hard shifts? Has your transmission failed?

 

ABS has to do with brakes.. why would the trans be affected?