4wd Shift actuator (new or old) not engaging, ground is good and dash lights on
 

It's a 2007.5 LMM. It isn't getting 12 V at the connector. I've checked the fuse in the engine compartment and have tried 2 different new actuators to rule that out. The manual 4wd switch wheel lights up for 2wd, 4H and 4L. The ground tests good as well. It also doesn't have the service 4wd message on the panel.