Transfer case actuator motor

Hello all

I've been having troubles with getting 4wd to work on my 2005 Xterra. I don't believe I'm getting power to the actuator motor on the back of the transfer case. Does anyone know the wiring of where the actuator motor come from? I'm able to manually switch it into 4wd if I apply power to the back of the actuator motor. When I turn the dial inside to 4h my pictogram flashes like it's trying to engage the front wheels but then goes blank after about 5 flashes then the 4wd light comes on but it's still in 2wd.

Any help would be great as I'm trying to trace it from the actuator motor now but can't find anything

Thanks

John