That's fine. But how did the Ignition switch pass current into the starter circuit while it was parked unattended?
The power came in on the red wire TO the ignition switch. Left on the yellow wire to a Bosch anti-theft relay, (the N.C. contacts) then to the PN switch, and continued out on the purple wire. Looking at the yellow and purple wire at the center consol, they're fried, and obviously were both carrying current.
Here are the mysteries: A: The ignition was off. The truck was parked. So how did current get from the red B+ to the yellow wire (Start) at the ignition switch?
B: The purple wire was carrying current from the P/N switch. Which was in park, so that makes sense. So far, the purple wire in the engine bay is fine. So how did the purple wire find a ground? When we get the dash harness out, we can open it up, and see where the purple wire damage ends.
So there's two parts to this that don't make sense. The truck started and was driven to a destination and shut off. So it was normal. Then A:Something happened to the Ignition Switch. B: Something grounded the purple wire.
I'll figure it out. But I haven't yet, and not tonight.
