Hello,

Does anyone know what it means when the anti-lock break light is on? What is the problem and fix? Thanks

 

Need some more information from you, year & options (blazer is assumed, i'm looking for like 1997 4x4 4.3L, etc). It could mean anything from a faulty wheel speed sensor, or a problem in the antilock pump itself. Antilock problems are very hard to diagnose without the use of a scan tool... I don't think that the autozone variants of scan tools can read anti-lock codes though.

 

Yes I thought I should have provided the real info . My blazer is a 2 door 1995 4.3 4x4 with 170 k the light has been on for many months. thanks