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System Diagram

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Air Condition System Diagram (1 Of 2)
G05291829Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Air Condition System Diagram (2 Of 2)
G05291830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. MODE POSITION AND DAMPER OPERATION 
    Fig 3: Mode Position And Damper Operation Chart
    G05291831Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    DAMPER POSITION OPERATION CHART

    Control Damper Control Position Damper Position Operation
    Air Inlet Control Damper FRESH A Brings in fresh air.
    RECIRCULATION B Recirculates internal air.
    Air Mix Control Damper MAX COOL to MAX WARM (TEMPERATURE SETTING 18 to 32°C (64.4 to 89.6°F) C, D, E Varies mixture ratio of fresh air and recirculation air in order to regulate temperature continuously from HOT to COOL.
    Mode Control Damper FACE F, J Air blows out of center registers and side registers.
    BI-LEVEL G, J Air blows out of center register, side registers, and footwell register ducts.
    FOOT H, K Air blows out of footwell register ducts and side registers. Also, a little air blows out from front and side defrosters.
    FOOT/DEF H, L Air blows out from front and side defrosters and side registers to defog the windows, and also blows out from footwell register ducts.
    DEF H, M Air blows out from front and side defrosters and side registers to defog the windows.
    RETRACTABLE HARDTOP CONTROL SWITCH N When retractable hardtop is open, air blows out from lap-jet if the mode is not FACE or DEF.
  2. AIR OUTLETS AND AIR VOLUME RATIONS 
    Fig 4: Air Outlets And Air Volume Rations Chart (1 Of 3)
    G05291832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 5: Air Outlets And Air Volume Rations Chart (2 Of 3)
    G05291833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 6: Air Outlets And Air Volume Rations Chart (3 Of 3)
    G05291834Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    • •: Available
    • -: Not available
    • The size of the white circle indicates the proportion of the airflow volume. There are 3 sizes.
    • *: When the retractable hardtop is opened.