2 low mod

I'm pretty certain the switch on the tcase is normally open (2wd). I just had a stick rip a wire off mine and lost control of the ADD. Cut the other wire off and crimped it together and had control again. I can't remember what wire I used but I installed an on/off switch in series of the tcase switch. Shift into 4x4 the tcase switch closes but my toggle switch stops the signal from telling the actuator to engage.