Having an indicator problem with the 4 x 4 . It shift into 4Hi, but the light on the dash will either flicker and go out, or just not light. Have verified it is shifting into 4 x 4.

Anybody know where I can get the wiring diagram to trace it, or know where the actual switches are located? I swapped the actual shift motor assuming it was the usual culprit since it was being finicky shifting to either 4Hi or 4Lo, but that's what I get for assuming. When I still didn't get a light, I got off the edge of the drive in the mud and goosed it, YUP! I had 4 x 4. I know I have it, but when she occasionally drives it I will hear it forever that the light on the dash isn't working. And yes it comes on with the bulb test so it's not the actual bulb. Ya gotta love the diagnostic mode on the dash!