Originally Posted by Ryan29nb
Not sure what you mean by direct ground at the diff. I am very lost when it comes to anything electrical.
Splice directly into the ground wire at the diff to a good ground.If awd doesn't work and you have 12 volts on the power wire,then some thing internal is causing the problem. Easiest way to tell is to have all 4 wheels off the ground. If the awd is working ok,all 4 tires should engage.