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Terminals Of Ecu

  1. CHECK BODY ECU (MAIN) 
    Fig 1: Identifying Body ECU (Main) Connector Terminal
    G04065226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WIRING COLOR TERMINAL DESCRIPTION

    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 ignition key cylinder Below 1 V
    KSW (B9-14) - GND2 (16) R-B - Body ground Key is inserted in ignition key cylinder Below 1 V
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