The ABS light is always on.

[TStaint]

First post ever on a forum so I'm here to learn. Mostly a jeep guy but just picked up a 2001 Explorer sport 2wd from my daughter with the abs light on. Leaning towards lower ball joints as the cause after reading some posts earlier.

 

[BrooklynBay]

Welcome to this forum! I've moved your thread into the stock 95-01 section. The ABS light indicates that there is a trouble code for the ABS system stored. Find out what the code numbers are.

 

[Steeda90GT]

I also want to add that 9/10 times its the rear speed sensor (located on top of the differential)

After reading many of the posts here, I saw that it was a very common problem for our trucks. So without getting the codes pulled I decided to throw the dice (sensor was only $8.99) and that did the trick.

 

[TStaint]

Thank you, I will try that first chance I get. Heck of lot easier than ball joints for now.

 

[Steeda90GT]

Remember to disconnect the battery while doing it.

 

[corkey]

lower ball joints will not trigger an abs light

sensors trigger abs lights, that can be caused by 3 different things,
front sensor that has gone bad,
rear sensor is gone bad,
or a front wheel bearing had gone bad,

if it is not making any noise in the front like a grinding i would say it is probably a sensor,
Check/change the back one first , it is usually the one ,,,

mine was,,