HAs anyone had this happen? I was just driven down the road and the ABS/Brake light comes on, while not using the brakes or anything. My truck is an 03 2500, 4X4. I have never had to make a panic stop. The antilock brakes have never had to pulsate due to a emergency stop or slippery road surfaces. I have only had the truck for about a month. It has been back to the dealer but it does not show any codes in the computer nor any stored codes.???????????????????????????????????????

 

The rear end has a sensor that will set it off and not give codes. I put a bearing kit in my series 80 and replaced the sensor (no more dash light). Also make sure the dope in the gear set is set a little BELOW the hole and gets changed every
30k, not with synthetics if you are heavy hauling. (Please don't flame me for this as I run NEO in everything else I drive)

 

In my '99, that sensor in the rear differential is called a speed sensor. With the sensor on the fritz, your brakes will work normally, but your ABS system is disabled. Should be covered under warranty.

DeWain

 

I had the samething happen on my truck,went to dealer they replaced the left front wheel speed sensor.Lights only seemed to come on when it was raining.

 

Thanks for the replies. When mine came on it was not showing any codes, and they could not find anything wrong. ???