Charge Indicator Lamp

A red alternator charge indicator lamp is located in the instrument cluster. This lamp glows when there is no alternator output.

When the ignition switch contacts are closed (switch turned ON), battery current flows through the charge indicator lamp and the parallel resistor (500 ohm), to the regulator and the lamp comes on.

When the alternator builds up enough voltage to energize a circuit in the voltage regulator, the charge indicator lamp goes out.