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PANEL LIGHT

PANEL LIGHT

SM2334291

id092200033000



Purpose

• The panel light adjusts the brightness of illumination lights such as the instrument cluster and steering switch illumination.



Functions

• The instrument cluster adjusts the brightness of the following illumination lights when it receives a TNS (parking lights) signal sent via CAN communication from the body control module (BCM).
― Instrument cluster
― Climate control unit
― Steering switch
― Cluster switch
― Hazard warning switch
― Shift panel (indicator)
― Drive selection switch
― Indicator unit
― Commander switch
― Cruise control switch
― Electric parking brake switch
― CD player
― Trunk lid opener switch
• The instrument cluster changes the brightness of the illumination lights according to the rotation signal of the panel light control switch.



Structure/Construction

• The panel light control switch is positioned in the instrument cluster.
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Operation


Panel light dimming operation (instrument cluster)

1. When the instrument cluster receives (1) a TNS (parking lights) signal (without auto light system)/panel light illumination request signal (with auto light system) from the body control module (BCM) via CAN communication while the ignition is switched ON (engine off or on), it changes (2) the brightness of illumination lights in the instrument cluster.
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Panel light on operation (except instrument cluster)

1. When the instrument cluster receives (1) a TNS (parking lights) signal/panel light illumination request signal (with auto light system) from the body control module (BCM) via CAN communication while the ignition is switched ON (engine off or on), it performs the following controls.

Note
• The panel lights do not dim when the auto light sensor detects that the surrounding area is bright.
― Sends (2) a panel light illumination request signal to the climate control unit via CAN communication.
― Sends (2) a panel light illumination request signal to the indicator unit via serial communication.
― Turns (2) the panel light-related parts circuit transistor on.
2. When the transistor turns on, a ground circuit with the panel light-related parts is established, and the illumination lights for the panel light-related parts turn on (3).
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Panel light control switch operation

1. When the instrument cluster detects (2) a panel light control switch rotation signal while a panel light illumination request signal is being output (1), it performs the following controls.
― Changes (3) the brightness of illumination lights in the instrument cluster and panel-light related module.
― Changes (3) the panel light illumination request signal brightness being sent to the climate control unit via CAN communication.
― Changes (3) the panel light illumination request signal brightness being sent to the indicator unit via serial communication.
2. If the instrument cluster detects (4) that the panel light control switch is in the maximum right rotation position, it maximizes (5) the brightness of the illumination lights and panel-light related module, and sends (6) a dimmer cancel signal to the climate control unit and indicator unit.
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