Four wheel drive will not engage?

It sounds like it maybe the controller. can you hear the actuator working? If not let remove the actuator then work the control to see if it moves this will let us know if the problem is internal. Here are the wiring diagrams so you can see how the system works. We should check the ATC, IGN1 and 4WD fuses this guide can help with the fuse locations below.

https://www.2carpros.com/articles/how-to-check-a-car-fuse




Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Thanks for the reply. no, there is nothing happening to the actuator. to be sure of this I hooked a brand new one up and left it out where I could see it from under the truck, had my boy switch in and out of 4 hi and 4 low. I replaced the switch on the transfer case thinking that was the issue once the new actuator didn’t work. I ran a multimeter on all the fuses already and power was good.

The control modules go out on these as well. let's use the wiring diagrams above to confirm the connections are all good, (power and grounds as well) then replace the module here are instructions in the diagrams below. To the left of the instrument cluster behind the headlamp switch. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

I didn’t realize there was a control module for the manual transfer case, I see it for the electric transfer case but in the wiring for manual I don’t see it. I am having the wiring checked again to see if I missed anything. The above wiring you posted is for electric.

here are the manual transfer case wiring diagrams. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.