Just curious if you only see the light after you do the hold the button deal and the lights flash.
According to the Copilot manual, if the right-most blue light is lit and the tranny is at operating temp it is in race mode. It says if you don't want the TCC lockup put it with the right-most two lights lit.
My green light always comes on when my TC locks up. There are 2 or 3 different versions of the co-pilot for the dmax, i turned my old one in for a gen3. It took me a while to get the green light to work properly. It never worked right till i soldered the wires together for a real good connection.