Problem Description and Possible Solution
A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.
Average mileage: 123,200 (50,000–226,000)
30 people reported this problem
ABS and BRAKE light on, brake light is on and off sometimes but if you clear the codes they stay off till highway speeds then back on again. Still not fixed re did ground under driver side battery tray is next
AB'S light on continously. Cleaned ground on frame below drivers door, not a cure. Tomorrow check battery ground, diesel with two batteries.