HIGH-MOUNT BRAKE LIGHT

id091800012000


Purpose

•  The high-mount brake light signals vehicles to the rear that the vehicle is stopped.

Function

•  The high-mount brake light illuminates in conjunction with the operation of the brake switch.

Construction


4SD

•  The high-mount brake light is installed to the rear package trim.
•  The high-mount brake light has adopted a LED.
Note
•  Fogging or condensation on the inside of the high-mount brake light may occur, however, it is a natural phenomenon occurring as a result of a temperature difference between the interior and exterior of the high-mount brake light and has no effect on the light performance. Fogging or condensation will dissipate when the temperature inside the high-mount brake light rises after the high-mount brake light is illuminated and a period of time has elapsed.
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WGN

•  The high-mount brake light is positioned on the roof.
•  The high-mount brake light has adopted a LED.
Note
•  Fogging or condensation on the inside of the high-mount brake light may occur, however, it is a natural phenomenon occurring as a result of a temperature difference between the interior and exterior of the high-mount brake light and has no effect on the light performance. Fogging or condensation will dissipate when the temperature inside the high-mount brake light rises after the high-mount brake light is illuminated and a period of time has elapsed.
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Operation


Operation due to brake pedal operation

With smart city brake support/Without smart brake support
1.  When the brake pedal is depressed, the brake switch (No.1 signal) turns on.
2.  When the brake switch (No.1 signal) turns on, current flows from the battery to the high-mount brake light.
3.  The high-mount brake light turns on.
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With smart brake support
1.  When the brake pedal is depressed, the brake switch (No.1 signal) turns on.
2.  When the brake switch (No.1 signal) turns on, a brake switch (No.1 signal) on signal is input to the brake light unit.
3.  When the brake light unit receives a brake switch (No.1 signal) on signal, it supplies current to the high-mount brake light.
4.  The high-mount brake light turns on.
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Without smart city brake support/Without smart brake support
1.  When the brake pedal is depressed, the brake switch (No.1 signal) turns on.
2.  When the brake switch (No.1 signal) turns on, current flows from the battery to the high-mount brake light.
3.  The high-mount brake light turns on.
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Operation due to operation request signal from rear body control module (RBCM)

Note
•  Refer to "SMART CITY BRAKE SUPPORT (SCBS)" and "SMART BRAKE SUPPORT (SBS)" for details. (See SMART CITY BRAKE SUPPORT (SCBS).) (See SMART BRAKE SUPPORT (SBS).)
Without smart brake support
1.  When the operation conditions are met, the rear body control module (RBCM) turns on the transistor inside the rear body control module (RBCM).
2.  When the transistor inside the rear body control module (RBCM) turns on, the brake light relay turns on.
3.  When the brake light relay turns on, current flows from the battery to the high-mount brake light.
4.  The high-mount brake light turns on.
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With smart brake support
1.  When the operation conditions are met, the rear body control module (RBCM) turns on the transistor inside the rear body control module (RBCM).
2.  When the transistor inside the rear body control module (RBCM) turns on, the transistor inside the brake light unit turns on.
3.  When the transistor inside the brake light unit turns on, current flows to the high-mount brake light.
4.  The high-mount brake light turns on.
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Fail-safe

•  Function not equipped.