TURN SIGNAL/HAZARD WARNING INDICATOR LIGHTS
2016 – MX-5 – Body and Accessories
TURN SIGNAL/HAZARD WARNING INDICATOR LIGHTS
Purpose
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The turn signal/hazard warning indicator lights notify the driver that the turn lights are flashing.
Function
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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:
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If a turn light bulb is burned out, the turn signal/hazard warning indicator lights flashing speed increases.
Construction
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The turn signal/hazard warning indicator lights are built into the instrument cluster.
Operation
Turn light system
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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.
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The BCM sends (2) the turn switch LH or RH signal to the instrument cluster as a turn signal.
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The instrument cluster turns the transistor on (3) intermittently based on the turn signal.
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When the transistor is turned on intermittently, the turn signal light flashes (4).
Hazard warning system
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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.
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The BCM sends (2) the hazard warning switch on signal to the instrument cluster as a hazard warning indicator signal.
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The instrument cluster turns the transistor on (3) intermittently based on the hazard warning indicator signal.
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When the transistor is turned on intermittently, the hazard warning indicator lights flash (4).
Fail-safe
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Not applicable