PANEL LIGHT
id092200033000
Purpose
• The panel light adjusts the brightness of the instrument cluster and steering switch illumination.
Function
• The instrument cluster adjusts the brightness of the following illumination lights when it receives a TNS (parking lights) illumination signal sent via CAN communication from the BCM.
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― Instrument cluster
― Climate control unit (with manual air conditioner system)
― Steering switch
― Cluster switch
― Hazard warning switch
― Shift panel (indicator)
― Drive selection switch
― Indicator unit
― Audio unit (without center display)
― CD player (without DVD)
― DVD/CD player (with DVD)
― Commander switch (with center display)
― Cruise control switch (with cruise control system)
• The instrument cluster changes the brightness of the illumination lights according to the rotation signal of the panel light control switch.
Construction
• The panel light control switch is positioned in the instrument cluster.
Operation
1. When the ignition is switched ON (engine off or on), the instrument cluster receives (1) a TNS (parking lights) illumination signal from the BCM.
2. The instrument cluster performs the following controls when it receives the TNS (parking lights) illumination signal.
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― Changes (2) the brightness of the instrument cluster illumination.
― Outputs (2) a panel light on request signal to the climate control unit via CAN communication.
― Outputs (2) a panel light on request signal to the indicator unit via serial communication.
― Turns (2) the panel light circuit transistor on.
3. When the transistor turns on, a ground circuit with the panel light is established and the panel light turns on (3).
Panel light control switch operation
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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.
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― Changes (3) the brightness of illumination lights in the instrument cluster and panel-light related parts.
― Changes (3) the panel light on request signal brightness being sent to the climate control unit via CAN communication.
― Changes (3) the panel light on 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 parts, and sends (6) a dimmer cancel signal to the climate control unit and indicator unit.
Fail-safe
• Not applicable
