^^^ Thanks for the info. Is the white wire connected to the computer module via the harness or is to connected to a sensor on the transmission. The speed box was working fine until this past week end , drove her to an event and she was exposed to lots of rain. I hope that it is an easy fix , will trace the connection, check for fuse on red wire also will hook the scanner to see if there is a code. Found this info >>> http://www.atrol.com/cx30/ , need info on what cable is the box conneccted to the Speartech harness to the ECM . I can not find info on T56 speed sensor all I see are connectors . Any info will be welcome .