[ChevyHighPerformance]

Wow, strong opinions either way - I don't know what the right answer is, but I will add it is very difficult to design a traction system for all surfaces.

The TC switch shuts off both the stability and traction systems.

There are two wires going to the e-locker: light green and black (I think these are the colors). +battery is switched to the light green wire and the black wire returns to the transfer case shift control module where it connects to ground through a resistor/current limiter. The final circuit will be pretty simple but you need to do serveral tests first to understand what is inside the control module.

For example, you'll need a diode to clamp the inductive current for the e-locker coil to prevent an insulation breakdown when you interrupt coil current.