Have you tried an abs diagnostic test?
http://www.toyotagtturbo.com/forums/showthread.php?p=299775&posted=1#post299775
Sorry, I thought you meant code 47 was from the normal diagnostic test. I don't know the codes off the top of my head and was only trying to help.
http://www.forparts.com/techtips/toyota_ICabstoycorolla0301.asp
No code 47 there either though...