FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Generator

The Generator (GEN):
- Supplies current to the vehicle's electrical system.
- Charges the battery.

With the ignition switch in the RUN position:
- Voltage is supplied through the I circuit to the voltage regulator.
- The generator warning lamp turns on (lamp prove-out).
- The voltage regulator turns on, allowing current to flow through the A circuit to the generator field coil.

With the engine running:
- The generator produces Alternating Current (AC), which is changed to Direct Current (DC) by the rectifier diodes.
- Current is supplied to the vehicle through the generator B+ terminal (stud).
- The generator warning indicator turns off.
- Generator output is controlled by the voltage regulator.