No power going to front actuator

Hello,

There are fuses and the TIPM that control the 4WD system. can I ask if the problem happened directly after the lift? If so lets check the fuses and grounds. here are the transfer case and 4WD actuator wiring diagrams so you can see which fuses to check and how the system works. I have included the fuse location as well and TIPM replacement instructions which is easy because it self initializes.

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

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

Lets run the codes to see what comes up that should point us in the right direction. here is a guide:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

This sounds like a typical TIPM that is out. All fuses are good? I would try the TIPM.

With the key on can you check for power from 12 and 1 at the TIPM please let me know what you find. Check the wiring diagrams above.

Yes, power output at 12 and 1 at the TIPM. Can you please shoot a quick video with your phone so we can see what's going on?That would be great. You can upload it here with your response.

Sounds good.

Okay sure sounds like the TIPM is out.

Can you tell us what the vehicle is doing when you shift it into 4wd? Does the 4wd indicator in the dash continue to flash after you turn the knob or does it flash and then turn solid?
This may shed a little light on what the vehicle is seeing.

Here's how the system functions. The 4wd shift knob is hardwired to the cluster. When you change knob position, the cluster reads this change and sends a message over the vehicle network to the TIPM. Once the TIPM sees a command to shift from 2wd to 4wd, it first activates the shift motor on the transfer case which should engage the front drive shaft. Once the TIPM sees the mode change completed via the position sensor in the t-case shift motor, it then activates the Front Axle Disconnect(FAD) motor. If it never sees the mode change in the t-case, it's never going to actuate the FAD.

With the truck in 2wd, have someone slowly drive the truck forward so you can watch the front driveshaft. Make sure it's not moving in 2wd. Then have your helper shift to 4HI and see what the driveshaft does. It should start spinning at this point. If it doesn't, we need to start looking at the t-case shift motor or its wiring.

Let us know what you find!

Those videos are perfect! Thanks for verifying that. When you have it shifted into 4 Hi, does it feel like it's in 4wd when making turns on dry pavement?