I put a different transfercase shift modulator and motor.. with the one that came on the different transfer case. Was stuck in 4 lo. Took that off put on a different shift modulator motor. It says service 4 wheel drive.also still stuck in 4 lo. I put the other motor on again. It doesn’t say service 4 wheel drive. The wire for modulator that is on the truck has a wire close to the wire for modulator. I can’t find were it goes. Any help is appreciated. Thank you for reading this