Brake Lamp: Description and Operation
STOP/TURN/TAIL LAMPSThe rear tail lamp modules are mounted on the rear of the vehicle, outboard of the rear door or doors, and molded into the lines of the vehicle. Each module contains three bulbs, a lens, and a housing. One bulb is a two filament bulb used for tail, stop, and turn signal functions, The other bulbs are single filament bulbs used for back-up light illumination and side marker light.
Each tail lamp module can be serviced separately. Each bulb can also be serviced separately. The headlamp switch controls tail lamp/side marker operation. The multifunction switch controls turn signal operation, and the back-up light switch controls the back-up light operation. The brake lamp switch controls the stop lamp function.