Turn signals not working, blowing fuse

Thanks Mattax, I have the FSM and diagram and yes it can be a pain in the *** to follow lol.

Took your advice and swapped in a spare turn signal flasher. Everything is working again, yay!

I tried swapping the turn signal flasher earlier in the diagnosis but it didn’t work because the fuse had burned out, duh.

Thank you very much for the assistance.
Great! Maybe internally the flasher grounded to the housing.

ya. Its helpful though when getting into the nitty gritty.
Following black wire D1 from the flasher, it goes to the bulkhead C2, position 8. From that junction it changes to white wire B1:BangHead: . Whodda guessed that.
B1 to the radio connector where it joins with X1, red* 14 ga wire. Follow that back to the heater switch where it joins with C1, Black* 14 gage that comes from fuse 3.

I've not spent a lot of time with the later wiring and between the color changes and the location at the end of the line makes figuring out the relationships harder. The diagram is a big help even though its a pain.