Lighting System System Description

Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Lighting. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. LIGHTING SYSTEM

Lighting System -- System Description



LIGHTING SYSTEM

  1. Illumination control system (Illuminated entry system):
    When the doors are unlocked through a key or transmitter operation, or when a door is opened or closed, the illuminated entry system turns on the room light, map light, ignition key cylinder light*1 or transponder key amplifier*2 and foot light.

    HINT:
    *1: w/o Entry and start system (w/o Engine immobiliser system)
    *2: w/o Entry and start system (w/ Engine immobiliser system)

    1. The main body ECU receives the following signal (A).

      1. Door courtesy switch signal
      2. Door detection switch signal
      3. Ignition switch signal

    2. The main body ECU controls the following signal based on the signals listed in A.

      1. Illumination operation signal

    3. The main body ECU controls the on/off and fade-in/fade-out operation of the following parts.

      1. Room light
      2. Map light
      3. Foot light
      4. Ignition key cylinder light*1 or transponder key amplifier*2
      HINT:
      *1: w/o Entry and start system (w/o Engine immobiliser system)
      *2: w/o Entry and start system (w/ Engine immobiliser system)

  2. Battery saver system:
    When the ignition switch is turned off and any of the doors is open continuously for 20 minutes, the main body ECU turns the illumination operation signal off. As a result, the room light, the map light and the foot light turn off.

    1. The main body ECU receives the following signals (B).

      1. Door courtesy switch signal
      2. Ignition switch signal

    2. The main body ECU controls the following signal based on the signals listed in B (C).

      1. Illumination operation signal

    3. The main body ECU controls the illumination period of the following parts based on the signals listed in C.

      1. Room light
      2. Map light
      3. Foot light

  3. Manual light control system:
    This system functions when lights such as the headlights and taillights are illuminated through manual operation of the light control switch.

    1. The main body ECU receives the following signals (D).

      1. Light control switch signal
      2. Headlight dimmer switch signal
      3. Fog light switch signal

    2. The main body ECU controls the following signals based on the signals listed in D (E).

      1. Headlight relay operation signal
      2. Taillight relay operation signal
      3. Headlight dimmer relay operation signal
      4. Front fog light relay operation signal
      5. Rear fog light relay operation signal
      6. Panel relay operation signal

    3. The main body ECU controls the on/off operation of the following parts based on the signals listed in E.

      1. Headlight (Low)
      2. Headlight (Hi)
      3. Clearance light
      4. Front fog light
      5. Rear fog light

  4. Light auto turn off system (for Long Body):
    With the light control switch in the TAIL or HEAD position, turning the ignition switch off and opening the driver side door automatically turns off the taillights or headlights.
    Light auto turn off system (for Short Body):
    According to the position of the light control switch, the appropriate lights automatically turn off.

    1. Light control switch is in the TAIL position:
      When the ignition switch is turned from on (IG) to off, the front fog lights automatically turn off.
    2. Light control switch is in the HEAD position:
      When the ignition switch is turned from on (IG) to off, the headlights and front fog lights automatically turn off.
    3. Light control switch is in the AUTO position:
      When the ignition switch is turned from on (IG) to off and the driver side door is opened, all the lights automatically turn off.

    1. The main body ECU receives the following items (F).

      1. Engine speed
      2. Ignition switch signal

    2. The main body ECU controls the following signals based on the items listed in F (G).

      1. Headlight relay operation signal
      2. Taillight relay operation signal
      3. Headlight relay operation signal
      4. Front fog light relay operation signal
      5. Rear fog light relay operation signal
      6. Panel relay operation signal

    3. The main body ECU controls the illumination period of the following parts based on the signals listed in G.

      1. Headlight (Low)
      2. Headlight (Hi)
      3. Clearance light (front and rear)
      4. Front fog light
      5. Rear fog light

  5. Automatic light control system:
    When the automatic light control sensor is ON while the vehicle is being driven and the light control switch is in the AUTO position, the headlights and taillights automatically illuminate. When this system is operating with the lights ON, turning the ignition switch off and opening the driver's door turns off the lights.

    1. The main body ECU receives the following signals (H).

      1. Door courtesy switch signal
      2. Automatic light control sensor signal
      3. Light control switch signal

    2. The main body ECU controls the following signals based on the signals listed in H (I).

      1. Headlight relay operation signal
      2. Taillight relay operation signal
      3. Panel relay operation signal

    3. The main body ECU controls the illumination period of the following parts based on the signals listed in I.

      1. Headlight
      2. Taillight
      3. Clearance light

  6. Daytime running light system:
    This system is directly connected to the low-beam headlights and taillight is designed to automatically activate the daytime running lights in order to increase the visibility of the vehicle.

    1. The main body ECU receives the following items (J).

      1. Ignition switch signal
      2. Engine speed
      3. Light control switch signal

    2. The main body ECU controls the following signals based on the items listed in J.

      1. Headlight relay operation signal
      2. Taillight relay operation signal

    3. The main body ECU controls the on/off operation of the following parts.

      1. Headlight (Low)
      2. Taillight
      3. Clearance light