Lighting and Horns: Description and Operation

Operation
Battery voltage is applied to the main light switch at all times. With the main light switch in PARK or HEAD, battery voltage is applied to all lights through the park lamps relay (with anti-theft model only). All lights are grounded through the B wires.

Glove compartment light
Voltage is applied from Fuse 7 through the battery saver relay. From the battery saver relay, voltage is applied to instrument panel Fuse 27 and then to the switch at all times. The switch closes when the glove compartment is opened and the bulb lights.

Interior light
Voltage is applied from Fuse 7 through the battery saver relay. From the battery saver relay, voltage is applied to instrument panel Fuse 27 and then to the interior lamp relay. Voltage is applied from the interior lamp relay to the GEM/CTM which supplies power to the interior lamp.

Cargo light
Voltage is applied from Fuse 7 through the battery saver relay. From the battery saver relay, voltage is applied to instrument panel Fuse 27 and then to the pulse width dimming module. Voltage is applied from the pulse width dimming module to the cargo lamp. When the dimmer control is turned fully counterclockwise the dimming module will illuminate the cargo lamp.

Engine compartment light
Voltage is applied from Fuse 7 through the battery saver relay. From the battery saver relay, voltage is applied to instrument panel Fuse 27 and then to the underhood light. The underhood light is energized through a mercury switch within the underhood light, when the hood is opened.