My abs lights came on over the course of the last year 5 different times and went out without repair work. the lights finnally came on and would not go out. i replaced the abs controller without issue, however i am the curious type. i opened the controller box to examine (post mortem if you will) and found a classic case of non-lead solder tin whisker groth shorting out several points on the board. the links below are several pictures of the tin whiskers that are classic in non-lead solder. the links below the pics are some details on tin whisker info. http://i403.photobucket.com/albums/pp120/bigjim195944/dsc02608.jpg http://i403.photobucket.com/albums/pp120/bigjim195944/dsc02609.jpg http://ieeexplore.ieee.org/xplore/login.jsp?url=http://ieeexplore.ieee.org/iel5/4147209/4141004/04147278.pdf%3fisnumber%3d4141004%26prod%3dcnf%26arnumber%3d4147278%26arst%3d398%26ared%3d403%26arauthor%3dsosiati%252c%2bh.%253b%2bkuwano%252c%2bn.%253b%2bhata%252c%2bs.%253b%2biwane%252c%2by.%253b%2bmorizono%252c%2by.%253b%2bohno%252c%2by.&authdecision=-203 http://mae.pennnet.com/articles/article_display.cfm?section=artcl&article_id=238657&version_num=2&p=32