gg82401

i have abs lite and brake lite on dash, code reader says 0141 but mechanic says its my electronic brake control module which is up to $1000. to fix. and when i search i get o2 sensor for code 0141. i look under my truck for module and my gas tanks are there, i know there are several questions 1. what is wrong with my truck? 2. is this even possible for me to fix? and can i repair it myself as i see on you tube ? or do i have to soend the grand to have it fixed?