Old Grunt
Junior Member
Just traded my 16 2500 for a 26 3500 DW. Within days got a msg about ABS/4wd not working. Back to dealer. Ran an update. Resolved issue. Month later hit again. This time used the Google to fix it. First push all fuzes in to ensure they are seated. Then unhook batteries for 30 minutes. Next tighten all the battery clamps to just about break torque. After that go to the car wash and wash all around and in between wheels. Apparently the ABS sensor gets gummed up and throws a code. RAM HAS NO FIX!!!! Expect to self rescue boys!!