Was going off of this comment in the first post.
Without an updated wiring diagram, I'm unsure of the pink wires routing...I just know of the fuse and wire but unsure of the exact specifics that it handles. It seems some have reported issues with the temp switch wires rubbing and others didn't blow that one but the 20 amp closer to the diode / carb area.
Hey FT, yes I realize now my wording was wrong for the diode, alldodge said the same thing, all I knew was that it had no continuity both ways as stated in the post which means open. I just said shorted because it looked burnt inside. Can I edit that post now I can't find a way to do so. Would be good to do for other viewers following along.
As for the 15amp fuse. Should I just replace and see if it trips again. I'll be running the boat tomorrow. I'm getting a new thermostat, and a new diode from electronics store. I'll see if engine warms up to 160 and then hopefully temp switch closes and TKS system starts working properly again. I guess I'll see if the 15amp fuse trips again when I hook everything up.
Did I miss anything? Is it worth doing the diode jumper test? I may as well change the thermostat if its not getting up to temp anyways and the diodes are cheap from the electronic store.
One more thing. If all is good after changing to new parts do I need to seal up the new diode to prevent shorting (bare metal will be exposed).
We'll know after tomorrow. Wish me luck guys. Thanks for all your help. You guys really know your stuff this forum is great. Hope this is the fix.
Cheers