Red F

hey guys, when driving my truck on the interstate at hwy speeds my ABS light comes on after I drive for a few miles. now around town I can drive all day and it'll never come on but everytime on the highway it comes on. what could be the cause? my brakes seem to work fine and when I cut the truck off the light doesn't come back on until I hit the interstate again and it's driving me nutts!! can anyone tell me whats going on?? thanks

nickpatton_189

iTrader: (2)

Take it to an auto zone or auto parts store and get them to read the code. A lot of them claim they can't ready the brake system codes but they can and it will pin point what sensor it is if it's faulty

Especial86

iTrader: (1)

You might have an issue with one of the abs sensors down at the hubs (IWE if its 4wd)

techrep

iTrader: (1)

or your speed sensor

Red F

would a speed sensor cause the ABS light to come on??

techrep

iTrader: (1)

speed sensor is your rear abs

Red F

i noticed yesterday that it came on while driving in town. i'm gonna look further into it and see if I can see any damaged ABS lines around

techrep

iTrader: (1)

ok

dropit_dragit

I actually had this problem with my truck. You have a speed sensors on the front passenger wheel and one on the driver side as well. It could be several problems: bad sensor, brake dust covering sensor, loose plug (my issue). Parts store can't read the code bc abs use a special code. Most shade tree mechanics can read them and the dealership obviously, but the dealer might charge you a fee. There are several more things that can cause it but those are the basic one and I would recommend checking those first

dropit_dragit

Any luck?