Autotronic 1 wiring diagram

[SuperTwo]

Has anyone got a wiring diagram for the above? My 3635 wont send power to the 4wd solenoid. The button appears to be working correctly and I've replaced speed sensor above the differential and still no joy.
I want to check if there's power coming from the autotronic box plug to rule out a break in the wiring loom.

 

[masseybreaker]

yellow wire out of number 4 in c block on auto 1

 

[SuperTwo]

Thanks