The following schematic diagram shows the 1964 Ford Falcon Generator Charge Indicator Light Circuit Wiring. A red generator charge indicator light is used. This light flashes on if the battery is discharging and the generator is not supplying current. The indicator light is connected between the armature terminal of the generator regulator and the coil terminal of the ignition switch. This actually places the light in parallel with the regulator cut-out contacts. If the ignition switch is on, and the cutout contacts are open, the charge indicator light will light up, indicating that the generator is not connected.
The circuit for the light is from the battery, through the light and through the generator armature, to ground. As soon as the generator comes up to speed, the cut-out contacts close. This by-passes the warning light which indicates that the battery is connected to the generator.