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Terminals Of Ecu

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK BODY ECU 
    Fig 1: Identifying Terminals Of ECU (Body ECU)
    G04438593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    BODY ECU

    Symbols (Terminal No.) Wiring Color Condition Specified Condition
    GND1 (4) - Body ground - Always Below 1 V
    SIG (10) - GND1 (4) - Ignition switch is ON 10 to 14 V
    SIG (10) - GND2 (16) - Ignition switch is ON 10 to 14 V
    BECU (11) - GND1 (4) - Always 10 to 14 V
    BECU (11) - GND2 (16) - Always 10 to 14 V
    BDR1 (12) - GND1 (4) - Always 10 to 14 V
    BDR1 (12) - GND2 (16) - Always 10 to 14 V
    GND2 (16) - Body ground - Always Below 1 V
    PWS (21) - GND1 (4) - Always 10 to 14 V
    PWS (21) - GND2 (16) - Always 10 to 14 V
    ACC (22) - GND1 (4) - Ignition switch is ACC 10 to 14 V
    ACC (22) - GND2 (16) - Ignition switch is ACC 10 to 14 V
    DTCY (B8-23) - GND1 (4) R-Y - Body ground Driver door courtesy switch is ON (Door is opened) Below 1 V
    DTCY (B8-23) - GND2 (16) R-Y - Body ground Driver door courtesy switch is ON (Door is opened) Below 1 V
    KSW (B9-14) - GND1 (4) R-B - Body ground Key is inserted in key cylinder Below 1 V
    KSW (B9-14) - GND2 (16) R-B - Body ground Key is inserted in key cylinder Below 1 V
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