Stop lamps
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
The stop lamps consist of a center high-mounted stop lamp and the LH and RH rear stop. The LH and RH rear stop are double-filament bulbs that are used as stop lamps.
The stop lamp switch receives battery voltage at all times through the STOP LAMPS fuse. When the brake pedal is pressed, the stop lamp switch closes and battery voltage is applied to the center high-mounted stop lamp and to the rear stop lamps. The center high-mounted stoplamp and the stop lamps are grounded at G302.