91 pahtfinder 4x4 problem and what is this button for?

[amyj1969]

Hi. I just purchased a 1991 Nissan Pathifnder SE. It doesnt seem to be out of 4 wheel drive, and I dont have an owners manual. Also there is a button on the dash that I do not know what it is for. It says E-At, and power or auto. As far as the 4x4 goes, my boyfriend has somehow gotten it out of the 4x4, but then it pops right back in. Any suggestions? Thank you

[Domenico]

that button is for the transmisson shift points,,like power will make it shift a little later ...but as for the 4wd it could be the transfer case..

[amyj1969]

thanx, I figured out the button, but just dont know what is up with the 4x4. I have also been told it could be the actuator