I have a problem with the abs/brake lights keep coming on. You can drive it for about five or ten minutes no problem, then the lights and noise come on. I already tried pulling the fuse, but that makes the alarm come on instantly. My truck is an 04 ECSB 4x4. Oh yeah this started when I got my 4.88's put in there. It has been tuned by pcmforless, but still no luck. Sorry about the long post.

 

what kind of noise is there?

probably the speed sensors.

 

Bueller....Bueller....

 

It's the same noise as when you leave the keys in the ignition and the door is open.

 

That is what I was going to say the speed sensor.

 

check for code, i'll bet it is 238, wheel speed mismatch, i got it after i put in my 4.56's in, my tire size was off by .8 inches and with the bigger gears was enough to set the code, i think it is 10% differance in readings from front to rear, the front goies off each axle and the rear goes off the drive shaft, so you have to make sure the tire diameter is almost dead on with taller gears.

 

Can the dealer scan for these codes and delete them? Or would I have to take it to a dyno tune place to get it fixed. Do you know how much the speed sensors are? Thanks.

 

i'm pretty sure you can take it to the dealer and they will take care of it and delete them

 

Thanks, blue cajun. I am going there tomorrow. Hopefully it will be taken care of.

 

no problem, like two weeks before i left for the middle east, i installed an eaton and 4.10's in my truck. it does the exact same thing as your truck does. hopefully when i get back i'll have the time to head over to the dealership myself and have it fixed.