DIRECTION INDICATOR/HAZARD WARNING INDICATOR LIGHTS

id091800041200

Purpose

• The direction indicator/hazard warning indicator lights notify the driver that the turn lights are flashing.

Function

• When the instrument cluster receives a turn signal or hazard warning indicator signal sent from the front body control module (FBCM) via CAN communication, it flashes the direction indicator/hazard warning indicator lights.

Note

• If a turn light bulb is burned out, the direction indicator/hazard warning indicator lights flashing speed increases.

Structure/Construction

• The direction indicator/hazard warning indicator lights are built into the instrument cluster.

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Operation

Turn light system

1. When the turn switch is moved to the LH or RH position, the start stop unit sends (1) a turn switch LH signal or turn switch RH signal to the front body control module (FBCM) via CAN communication.

2. When the front body control module (FBCM) receives the turn switch LH signal or turn switch RH signal with the ignition switched ON (engine off or on), it sends (2) the turn signal to the instrument cluster.

3. The instrument cluster turns the transistor on (3) intermittently based on the turn signal.

4. When the transistor is turned on intermittently, the direction indicator light flashes (4).

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Hazard warning system

1. When the hazard warning switch is turned on, the start stop unit sends (1) a turn switch LH signal and turn switch RH signal to the front body control module (FBCM) via CAN communication.

2. The front body control module (FBCM) sends (2) the turn switch LH signal and turn switch RH signal to the instrument cluster as a hazard warning indicator signal.

3. The instrument cluster turns the transistor on (3) intermittently based on the hazard warning indicator signal.

4. When the transistor is turned on intermittently, the hazard warning indicator light flashes (4).

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Fail-safe

• Not applicable