abs light on

[The exploder]

K so ever since i bought this truck i have been getting an intermitent abs light. It will be on for a while then i take the negitive off of the battery and wow it works again. sometimes for a mounth sometimes a week. Any thoughts!!!

 

[MustangP51]

Check and clean the connections to the wheel speed sensors, otherwise you might have a wheel speed sensor starting to fail.

 

[BrooklynBay]

Did you get the code read? Most of the time it's from the rear sensor or from brake dust on the front sensors.

 

[The exploder]

Umm the shop told me that they couldnt pull codes out of the computer.... they just had to randomly test points they quoted me like 4 hours of labor.... so how whould i go about cleaning these sensors. Is there a thred.... thanks !!!

 

[BrooklynBay]

Brake cleaner should work on the front sensors. The rear one doesn't have a quick fix other than replacing it.

 

[The exploder]

Umm what do these "sensors" look like? And where are they located?
James

 

[Lt.Jim]

Check the relay sometimes they go bad.

 

[The exploder]

How do you check a relay??? Is there a way!!
Or do you just replace it... thanks
James

 

[Rick500]

I'm having the same issue with my '02 XLT 4WD, except the ABS light stays on now all the time. I scanned for codes, and there are none stored.

Are the front and/or rear sensors able to be cleaned on an '02, or is there something else I should be checking?

 

[Lt.Jim]

How do you check a relay??? Is there a way!!
Or do you just replace it... thanks
James

I just switched the abs relay with the blower motor relay. ABS light went out and blower motor quit working. I replaced the bad relay.

 

[The exploder]

thanks i will try this tomaro if it comes on cold weather seems to keep the light off

 

[Rick500]

Hmm.. mine's changed from 34 to 19 now.

 

[The exploder]

it did what i dont understand

 

[Rick500]

Oops, sorry, I had airbag lights on the brain. That's my other problem. The airbag light...which was showing code 34 and now is showing 19 instead.

The ABS light is still on all the time as usual. Ah, well.

 

[The exploder]

Well i sprayed a lot of 2 doller brake cleaner up in the front sensors and it hasnt come on for a few weeks so thanks guys
James

 

[gsx220]

where are the sensors on the front what do they look like

 

[The exploder]

Well

What i did was buy a bottle of brake cleaner and emptyed it by spraying all a round the brakes... The sensors are right behind the tire though kind of of the brake if i remember right..... i did it with the tires on and just sprayed a **** load of stuff back there...... Hope this helps

 

[DeRocha]

The ABS wheel sensor is labeled in the 1st picture. The 2nd picture shows the inboard side of a 1st generation rotor without ABS (sorry couldn't find a pic with ABS). Absent in the picture is a tone ring which would be just inside the rotor part. The tone ring looks like a gear/sprocket. When the vehicle is in motion the Wheel sensor (it is a magnetic sensor) will detect when each tooth passes by.. This info is given back to the ABS computer.. Most often the problem is that metal shavings from worn pads and the rotor will collect on the ABS sensor or clog the teeth on the tone ring.. When this happens the sensor becomes blind and cannot detect any teeth (this will cause the ABS light to come on). You cannot clean the sensor while the wheels are still on (just know way to get to it). You should remove the wheels clean the sensor and tone ring..

 

[The exploder]

I was hopeing that you whould post that pic derocha i know i have seen it before i just wasnt sure witch thread it was in..........Thanks James