No start signal on 07 JKU

WSS

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So. Cal.
Another no crank, no start thread. I have 12.5v at battery, cleaned the ground and pos terminal on battery, cleaned and reattached grounds around and in engine compartment.

One clue is m27 fuse (ign sw win mod) was blown. I replaced and a few items are working again, but still no crank.

I tested pin 86 on K3 no 12v when turned to start. Also no signal on pin 87 or at the starter solenoid start wire.

This is sudden and no trick has been successfully applied.

JScan reads this:

IMG_9580.jpeg
 
You can pull up on the yellow fuse in the engine compartment I think it's called a IAD or something like that, it will disable the security system.

Ok, I pulled it yesterday and checked it for continuity, then duly put it back in.

Meanwhile, I have pulled the ignition switch and found a little broken pin loose in the switch. i presume it is important and part of the ignition key part. Does this sound right?
IMG_9588.JPG



IMG_9587.JPG
 
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UPDATE! FIXED.

The broken pin is a door chime actuator. I installed the new ignition switch without the broken pin. Everything works except the annoyong door chime. Starts, gauges work, dash panel stuff is operational.

I used chat gpt alot for this project and it steered me wrong most of the time. However, it did give ideas. Chat gpt uses internet solutions, we know how many of those are not correct. It also had a hard time between tj and jk. It still has a lot of learning to go.