what ia abs code 65 on a 93 blazer?

ok the abs light is on in my step dads 1993 blazer 4wd. i jumped the terminals and got error code 65. but i dont have a manual to tell me what the code means, ive searched all over the internet to no avail. can someone with a manual look up this code for me? thanks
gino

here is a link for you it should help.

http://www.s10blazers.com/abs_codes.htm