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Connected the 12g 5A jumper to the key switch and the Coil Out wire. It shows 12.3V at the + terminal of the coil.
Prior to this, the truck had been a reliable starter and was my regular work truck. However the generic key switch had a history of working lose and grounding itself (2 times over the last year) so I had ordered this reproduction switch (a long time ago) with the goal of solving that once and for all. Truck was sitting over Christmas for 3 weeks, battery got too low to start so I charged it and changed out the key switch.
Which terminal on the Voltage Regulator is supposed to read 12V?
Last edited by PapaDisco; 01/04/2025 1:41 AM. Reason: Clarity
