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I have a new to me M1010 and am trying to figure out some parts that arent working. The truck has been somewhat electrically converted, where the DUVAC has been removed and one of the alternators swapped for a 12V alternator, which is hooked up to the 12V bus. The lower 12V alternator is...

Oh okay, my glow plugs have been wired to a switch and the board removed so that is just empty for me now.

U have these two plugs under my dashboard that were apart when I bought the truck and look like they go together, but they aren't exactly easy to plug into each other either. The male end goes into the harness behind the dash and seems like its connected to things like the aux lights wiring and...

Yes the lower one has a 14V regulator. I was having problems with the no charging happening at all and the batteries were dying until I flipped the switch thats been wired to turn the top 28V alternator on, so I am assuming this 14V lower alternator is not operating at all. Is there a good way...

Here is a picture of the 12V bus, which doesnt seem to be 12V at all. There are two wires coming off the bus going into the wiring harness below and one more wire going directly to the back of the fuse panel below the steering column. Then there is a bigger orange wire which runs to the lower...

I recently picked up a M1010 truck and had some questions regarding the wiring for the lights. It seems like some things have been modified on the truck, so I am trying to understand what's been done. It almost seems that all the 12V wiring has been eliminated and everything is set up to be at...