I had the same problem on my T2. I fixed it, after a while.
http://pinside.com/pinball/forum/topic/no-lane-change-on-t2
The board was a dash 3, (-3) and needed to be a -1. I added U7, U8, R210, R211, changing it to the proper board configuration for a T2.
WPC Dot Matrix
WPC-89 CPU board.
A-12738 sound board
Slugfest Baseball, 6/91
Gilligan's Island, 7/91
Terminator2, 7/91
Hurricane, 2/92
Party Zone, 10/91 *
Hot Shots (Basketball game)
Gilligan's and T2 are both pre-fliptronic games and need the components I listed.