This all started when I checked my front brake pads. Then I downloaded a Accel tuner. The brake and abs lights comes on once I'm on the hwy. running about 70-80mph and about 2 miles into it. I changed out both front speed sensors. I also checked to make sure the bearings wasn't bad. I changed out the out put sensor in the transmission tail shaft. I also put new brake pads on front to make sure there was enough brake fluid in the reservoir. The only thing I haven't replaced is the ABS module because it's not cheap and I don't want spend the money and not be the problem. I'm want to make sure I haven't overlooked something and I'm needing to see if any of you have came across something like this.

 

Not sure why you posted in "Ride of the Month" .
We need year/make/model/engine/miles/trouble codes please. Also, what does "downloaded a Accel tuner" mean?

 

Well crap! I have a 2008 Silverado. I changed both front speed sensors and the speed output sensor on the tailshaft of the transmission. I also put new front brake pads on to ensure the right amount of brake fluid. I pulled the programmer and put factory settings back in. The only thing I haven't done is replace the EBCM because of the cost. I had no problems until I checked my brake pads and the same day I downloaded the ACCEL Programmer.

 

Again, what are the faults that triggered the warning lights?
Run a full diagnostic scan to get the codes.

 

2008 chevy silverado ex-cab 2 wheel drive 5.3. Accel has a tuner like hypertech. I pulled the accel tuner and put the factory settings back in.The engine light isn't on and there are no error codes. The truck resets it's self when the engine is shut off. The lights don't come on as soon as the truck is started.

 

The codes should be stored even if the warning light isn't on.
If not, then don't shut it off. Retrieve the codes as soon as the warning lights come on.

 

OK. Thanks