LIGHTING SYSTEM


  1. FUNCTION OF MAIN COMPONENTS

    Component Function
    Body ECU Receives various signals and illuminates the headlights, taillights, clearance lights, license plate lights and front fog lights*.
    Automatic Light Control Sensor Detects the ambient light level.
    Headlight Dimmer Switch Assembly Outputs a light control signal to the body ECU.
    Front Door Courtesy Light Switch Assembly (LH) Detects whether a door is open or closed and transmits a signal to the body ECU.
    H-LP Relay/DIMMER Relay Supplies power to the headlights.
    TAIL Relay Supplies power to the taillights, clearance lights and license plate lights.
    FOG FR Relay* Supplies power to the front fog lights.

    *: Models with front fog light assembly

  2. SYSTEM CONTROL


    1. Operating Condition


      1. The automatic light control system operates as follows:

        Function Outline
        Taillights turn on

        When all of the following conditions are met, the taillights, clearance lights, front fog lights* and license plate lights automatically turn on:


        • The ambient light is dim or momentarily dark.

        • The ignition switch is ON.

        • The light control switch is in the AUTO position.
        Headlights and taillights turn on

        When all of the following conditions are met, the headlights, taillights, clearance lights, front fog lights* and license plate lights automatically turn on:


        • The ambient light is dark or momentarily bright.

        • The ignition switch is ON.

        • The light control switch is in the AUTO position.
        Headlights and taillights turn off When the ambient light is bright, the exterior lights automatically turn off.

        Tech Tips

        *: Models with front fog light assembly (The front fog light switch is on position.)