TURN SIGNAL/HAZARD WARNING INDICATOR LIGHTS
Purpose
The turn signal/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 BCM via CAN communication, it flashes the turn signal/hazard warning indicator lights.
NOTE:
If a turn light bulb is burned out, the turn signal/hazard warning indicator lights flashing speed increases.
Construction
The turn signal/hazard warning indicator lights are built into the instrument cluster.
Operation
Turn light system
When the turn switch is moved to the LH or RH position with the ignition switched ON (engine off or on), the start stop unit sends (1) a turn switch LH or RH signal to the BCM via CAN communication.
The BCM sends (2) the turn switch LH or RH signal to the instrument cluster as a turn signal.
The instrument cluster turns the transistor on (3) intermittently based on the turn signal.
When the transistor is turned on intermittently, the turn signal light flashes (4).
Hazard warning system
When the hazard warning switch is turned on, the start stop unit sends (1) a hazard warning switch on signal to the BCM via CAN communication.
The BCM sends (2) the hazard warning switch on signal to the instrument cluster as a hazard warning indicator signal.
The instrument cluster turns the transistor on (3) intermittently based on the hazard warning indicator signal.
When the transistor is turned on intermittently, the hazard warning indicator lights flash (4).
Fail-safe
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Not applicable