73 Dart Alternator doesn't show charge anymore.
OK. I've got a couple of ideas for testing.
You determined the fuse was not blown by checking the voltage on each end.
a. There could be voltage on the other side of a blown fuse if there is a cross wire short.
I'm going to say this is the least likely situation based on all we know.
b. There is a weak or open connection in the circuit. Could be the fuse clips and fuse.
A quick check of the power in is to turn on the dome light. It's fuse is also on the 'always hot' power feed. Stop lights and Hazards are also on that fuse. Those will all show draw on the ammeter when they light up.
It could be a as simple as poor contact between the fuse and the fuse clips. Remove the fuse and clean them up with somehting that doesnt remove the plating.
To check the circuit with the voltmeter, turn the parking lights on and measure the voltage on each side of the fuse. If there is a poor connection between the points of measurement when the circuit is there will be a big voltage difference as electrons struggle to move through. If both sides of the fuse remain at 12 Volts (assuming engine off), then check at the next connector downstream. In this case the B2 terminal of the headlight switch.
The junction at the fusebox is not a splice per se.
The two wires are joined together at the terminal.
