High Charging Rate. Found Voltage Drop Need Guidance Please
I still have no idea why you are measuring that resistance.
This would show total resistance from "run side terminal" to ground post?
Is this what you wanted to measure?
As I saw when posting the diagram:
That does leave a possible connection to ground. The voltage regulator still has a ground connection (mechanical) and possibly through the rotor too in parallel.
Disconnect the power into the regualtor (blue wire) and a digital ohmeter should MegaOhms or the same symbol it shows when the probes are touching nothing.
In other words, I was wrong when I said this shows a ground short. There were still ground connections in the circuit, especially if its an electromechanical regulator.
I still don't know what you are trying to measure.
With the battery hooked up, I have no idea what will happen. If the meter is set to measure resistance and is placed across voltage, somehting often goes up in smoke. One meter lead is on a ground, and the other on a wire that's switched off?? If it was on, then the meter may be damaged.
If the meter has ever been connected to a voltage source while set for resistance, it may be damaged.
Lets go back to this.
There should be 1/2 ohm across the resistor. In other words internally. If you lay it on a wood table and measure the resistance from terminal to terminal.
No grounding.
It's contained in an ceramic heat sink. If you lay it on a steel table there still should be no grounding. One probe on the table and the other to check each terminal and the result should be an open circuit.
No grounding.
When the resistor is wired to the coil, the coil has its own internal resistance. The primary coil windings are only gtounded through the points (or ECU). If there is continuity between the coil's terminals and the housing, it has short. Between he two terminals, the resistance should be as listed in the book.
So these are the resistance and continuity checks that can be made to check for ground shorts or excessive resistance in the ignition circuit.
Voltage drop is a check for excessive resistance when current is flowing through a circuit. In the case here, your observing (or looking to observe) a difference in voltage between the battery and the something downstream when the current is flowing out of the battery.
and
It is the difference between the alternator output voltage and some point downstream when current is flowing out of the alternator.