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.
ABS Light Due to Poor Electrical Ground Under the Battery Tray on Chevrolet Silverado 2500 HD
Average mileage: 123,200 (50,000–226,000)
19 people reported this problem
Same problem. But can't find ground under battery tray. 6.6l duramax 72k miles.
2007 Chevrolet Silverado 2500 HD 139,000 mi, Visitor
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
2005 Chevrolet Silverado 2500 HD 70,000 mi, Visitor
AB'S light on continously. Cleaned ground on frame below drivers door, not a cure. Tomorrow check battery ground, diesel with two batteries.
2004 Chevrolet Silverado 2500 HD 137,000 mi, Visitor
ABS light on.. no apparent issues. sensors are good, all brakes and rotors brand new.
2001 Chevrolet Silverado 2500 HD 116,000 mi, Visitor
ABS AND BRAK LIGHT COMES ON BUT NOT ALL THE TIME
2007 Chevrolet Silverado 2500 HD 50,000 mi, Visitor
ABS light flickers on and off. Was told that speed sensor was bad, so replaced it and still have the same problem. not yet fixed
2003 Chevrolet Silverado 2500 HD 100,000 mi, Visitor
abs light flickers off and on
2002 Chevrolet Silverado 2500 HD 226,000 mi, Visitor
Replaced new front wheel hubs. Cant get a code because cig lighter don't work. Still have abs light on
2002 Chevrolet Silverado 2500 HD 85,000 mi, Visitor
antilock brake systen light came on It is not fixed
2003 Chevrolet Silverado 2500 HD 109,000 mi, Visitor
Abs light stay illiminated and service brake system message is intermittant