Cruise Control Switch Wiring Diagrams?

[luvrbus]

Yeah, I ended up giving a big old {shrug} to the pile of pins on the back of the switches.

My concern now is what the DDEC expects.  

That is where the installation and application manual comes in handy, some place on the web you can download one for free use the search option here. Lol then you get a double whammy with the first generation ATEC like on your 748 lots of fun chasing the little wires huh  

[eb99603]

Well relay 11a must be wired correctly because now that I fixed the upstream relays and it's correctly energized when I hit the brakes or apply the retarder, the cruise disables as soon as 11a is energized. And smacking the "Resume" button brings me right back where I left off. Success!

I still don't understand DDEC wires 543 and 531, but I don't need to at this point. It works.