If you'll download the FSM, and look at page 8W-30-3, it's powered from Fuse 16, the 5A fuse, in the inside fuse block.

See the attached page from said FSM.

RwP

 

Ah, they did indeed do it different. I suppose I shouldn't be surprised.

 

Well just for updates I just have the switch unplugged and will leave it that way for the foreseeable future.

I’m not sure why when I started the truck OD was always OFF/Light ON if the normal operation would be OD ON.

Either way, mission accomplished. Thanks guys!

 

How long have you owned the truck?? I would suspect a previous owner did some modification.