First "load Test" the 12V battery, and check the 3-4 ground straps under the hood.
Don't just look at them, "wiggle" them and look for corrosion..
HTH
Willie
Don't just look at them, "wiggle" them and look for corrosion..
HTH
Willie
Should be cables, plural. There's 3 of primary concern. You probably checked the one to the 12V battery. Then there's two that run just below and in front of the air box. Those often break and corrode, or corrode and break... Make sure you check those too; they could still be responsible for the weird dash stuff, and could have been responsible for the weak 12V battery charging... There's also a ground cable that attaches somewhere down by the electric power steering, but I don't think that's often a problem...so i looked at my ground cable, which was fine....