Silverado build

I read yesterday that if the 4wd light does not come on the cluster you can jump the wires on the plug that’s for the actuator if the light then comes on it’s the actuator gone bad. I will have to check it. I do not know if the light even comes on or not, I have not tried to put it in 4wd yet. it seems pretty common on these and a cheap fix, so fingers crossed.