I have manual shifter on the floor but the lights will not light on the dash and the front diff wont engage. I have checked the electrical goign to the solenoids and they are getting the constant power they are supposed to but are not receiving the ground signal that would cause them to engage. They have vacuum going to them but i cant figure out where to go from here. where does the ground switch signal come from and how do i figure out if it is a ground fault or a bad gem module.

oh and im brand new to the forum so if im posting in the wrong place any help would be appreciated.

kendel

 

replaced the transfer case position sensor as it was bad.....still not getting ground. running out of non gem options. any other suggestions out there?