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Well finally it lives again. Broke down and just ordered a new pcb box from boyce equipment. Showed up in two days, swapped it in and instantly had power to the gauges with the battery switch on and started it right up. Still going to rebuild the old pcb and the used take off one that was no...

When I was bypassing the solenoids I had my son in the cab and asked him if it showed anything lighting up or operating on the gauges. His response was no, I didn't look myself. I'll have to check the combined output of the batteries again to see what they are, I'm guessing the procedure for...

The truck was turned off when I operated the battery switch and the pcb harness was reinstalled.

Okay, so I used a jumper wire on the pcb harness. Truck turns over and starts. After that I turned on the battery switch, no dash gauge lights, only when I operate the light switches do I get lights, which I know are on a separate circuit. Plugged in the pcb harness and smacked the box with a...

The starter was slow turning right after I did the incorrect shut down, so I replaced the pcb box. Now its not even turning over, which is why I was thinking that the pcb box was faulty. Is there still a possibility that its a bad starter or could the used pxb box be culprit? I'm going to do the...

Perfect, I'll give this a try for sure. If the truck starts with this procedure does it mean the pcb is bad then? And if not the starter is the culprit? I apologize if I am asking dumb questions, but I am wanting to be positive that I am understanding correctly.

I just bought a load tester last week, I will put it on the batteries to verify maps for sure as well. Thanks.

When I jump the two large pins, would I operate the battery switch and ignition switch the same as if the pcb harness plug was hooked up? I'm assuming yes, but want to verify it before I do. As I don't want to do something that will create additional problems. Thanks.

Tested the batteries to be positive that they weren't down or drained. Both tested in the 12.39 range, so I am guessing that I can rule them out of the equation. I know they could be a little higher, but certainly should have enough charge to turn over the truck.

So I replaced my pcb box with a used take off unit that I bought while in the process of rebuilding my old pcb. The dash lights all come on when I operate the light dash switch. But the truck doesn't even turn over with the battery switch on and operating the ignition switch. Batteries were...