Brake Lamp: Description and Operation
STOPLIGHT AND REAR DEFOGGERGENERAL DESCRIPTION
The circuit consists of the stoplight, stoplight switch (vehicles W/O cruise control), brake switch (vehicles W/ cruise control), rear defogger, rear defogger switch, rear defogger relay and trailer harness connector for stop lights.
With the brake pedal depressed, the stoplight switch or the brake switch is turned on to illuminate the stoplight. The brake switch controls not only the operation of the stoplight but also the input of the cruise cancel signals to the cruise control unit.
When the rear defogger switch is turned on with the starter switch on, the battery voltage is applied to the rear defogger through the rear defogger relay to operate the rear defogger.
The rear defogger switch is provided with a timer. When the operation time of the timer elapses which has been set in advance at manufacture, the switch is automatically turned off. (The timer operating time is normally about 30 minutes).