BRAKE LIGHT UNIT

id091800400200

Purpose, Function

• The brake light unit turns on the brake lights and high-mount brake light according to the brake pedal operation or a illumination request signal from the rear body control module (RBCM).

Construction

• The brake light unit is installed to the rear package trim. (4SD)

• The brake light unit is installed to the wheel house inner. (WGN)

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Operation

Operation due to brake pedal operation

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 brake lights and high-mount brake light.

4. The brake lights and high-mount brake light turn 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).)

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 brake lights and high-mount brake light.

4. The brake lights and high-mount brake light turn on.

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Fail-safe

• Function not equipped.