Restored functionality to the 4x4 Actuator Circuit. The aftermarket Electric Actuator& harness I swapped in years ago. stopped working before taking the truck up for the engine work.
Back in April I did some diagnostics and there was no power to the 'Key On' Spare Power Source I'd tapped in to on the Convenience Center (F3) and connecting to the Hot At All Times source (F3) didn't solve anything either. So I was contemplating getting rid of the Electrical set up and go back to OEM Thermal Unit.
Spent today going over the schematics and noticed something. The 4x4 Fuse (#24) in the Instrument Panel fuse center was popped and, funny thing, that's the one that sends 12 volts to the Spare Power Source F3 at the Convenience Center.
DOH!
"Captain, Power has been restored" and I now have 4x4 again. Anyone want a Thermal Actuator NIB?