LIGHTING SYSTEM SYSTEM DESCRIPTION


  1. AUTOMATIC LIGHT CONTROL SYSTEM

    When the light control switch is in the AUTO position, the automatic light control sensor detects ambient light levels and outputs a signal to the main body ECU (network gateway ECU). The main body ECU (network gateway ECU) controls the low beam headlights, clearance lights, taillights and license plate lights.

  2. LIGHT AUTO TURN-OFF SYSTEM


    1. The light auto turn-off system is used to prevent the driver from leaving the vehicle with the headlights, clearance lights, taillights or license plate lights on. When all of the following conditions are met, the exterior lights turn off:


      • The ignition switch is turned from ON to off.

      • The headlight is on.

      • Remove the key from ignition switch*.


        • *: w/o Entry and Start System

  3. DAYTIME RUNNING LIGHT SYSTEM (for HID Headlight)


    1. The daytime running light system is designed to automatically illuminate the clearance lights during the daytime to make the vehicle more visible to other vehicles.


      • This system is controlled by the main body ECU (network gateway ECU).

      • This system is enabled when the following conditions are met:


        • The ignition switch is ON.

        • Engine speed signal input (engine is running).

        • The shift lever is other than in P*.

        • The parking brake switch is off.

        • The light control switch is in off or AUTO position (and the low beam headlights are not turned on via the automatic light control system).


      • *: for Automatic Transmission

  4. DAYTIME RUNNING LIGHT SYSTEM (for Halogen Headlight)


    1. The daytime running light system is designed to automatically illuminate the daytime running lights*1 or fog light assembly (daytime running light bulb)*2 during the daytime to make the vehicle more visible to other vehicles.


      • This system is controlled by the main body ECU (network gateway ECU).

      • This system is enabled when the following conditions are met:


        • The ignition switch is ON.

        • Engine speed signal input (engine is running).

        • The shift lever is other than in P*3.

        • The parking brake switch is off.

        • The light control switch is in off.


      • *1: w/o Front Fog Light

      • *2: w/ Front Fog Light

      • *3: for Automatic Transmission

  5. FOLLOW ME HOME SYSTEM

    The follow me home system is designed to illuminate the low beam headlights for certain period after the vehicle is parked.


    • This system is controlled by the main body ECU (network gateway ECU).

    • This system is enabled when the following conditions are met:


      • The ignition switch is off.

      • Remove the key from ignition switch*.

      • The light control switch is in off or AUTO position.

      • The dimmer switch is pulled to flash headlights once.


        • *: w/o Entry and Start System

  6. HID HEADLIGHT SYSTEM

    The HID (High Intensity Discharge) headlight system uses a discharge headlight bulb as its light source for the low beam headlight. Discharge headlight bulbs are superior to halogen bulbs.


    • Discharge headlight bulbs have the following features:


      • The light emitted by the bulb is close in color to sunlight. The light shines ahead over a broader area and further forward, increasing the area visible to the driver.

      • Less power is consumed.

    • This system consists of the discharge headlight bulbs and headlight light control ECU sub-assembly.

    • The headlight light control ECU sub-assembly transforms the voltage that is input from the battery to a high voltage of up to 22000 V and applies it to the discharge bulbs in order to illuminate them.

    • A fail-safe function is provided as a countermeasure against the high voltage that is generated if a problem occurs in the headlight system.