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Terminals Of Ecu

  1. INSTRUMENT PANEL J/B (BODY ECU) 
    Fig 1: Identifying ECU Connector Terminals
    G04379715Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
    INSTRUMENT PANEL J/B REFERENCE CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    LSWR (D6-5) - Body ground B - Body ground Rear right door lock position switch input Door lock position switch is UNLOCK --> LOCK Below 1 V --> 10 to 14 V
    UL2 (D6-4) - Body ground Y - Body ground Passenger door key-linked door unlock input Door key-linked is OFF --> UNLOCK 10 to 14 V --> Below 1 V
    LSWP (D6-27) - Body ground GR - Body ground Passenger door lock position switch input Door lock position switch is UNLOCK --> LOCK Below 1 V --> 10 to 14 V
    LGCY (D6-25) - Body ground V - Body ground Luggage compartment door courtesy switch input Luggage door courtesy switch is CLOSE --> OPEN Below 1 V --> 10 to 14 V
    PCTY (D6-23) - Body ground L - Body ground Passenger door courtesy switch input Door courtesy switch is CLOSE --> OPEN Below 1 V --> 10 to 14 V
    TR+ (D7-1) - Body ground B - Body ground Door lock motor UNLOCK drive output (Luggage compartment door) Ignition switch on (IG), luggage door lock motor is OFF --> UNLOCK Below 1 V --> 10 to 14 V
    ACTD (D8-1) - Body ground GR - Body ground Door lock motor UNLOCK drive output (Driver door) Ignition switch on (IG), door lock motor is OFF --> UNLOCK Below 1 V --> 10 to 14 V
    UL3 (D8-8) - Body ground V - Body ground Driver key-linked door unlock input Door key-linked is OFF --> UNLOCK 10 to 14 V --> Below 1 V
    LSWD (D8-7) - Body ground L - Body ground Driver door lock position switch input Door lock position switch is UNLOCK --> LOCK Below 1 V --> 10 to 14 V
    RCTY (D8-16) - Body ground GR - Body ground Rear right door courtesy switch input Door courtesy switch is CLOSE --> OPEN Below 1 V --> 10 to 14 V
    DCTY (D8-14) - Body ground L - Body ground Driver door courtesy switch input Door courtesy switch is CLOSE --> OPEN Below 1 V --> 10 to 14 V
    BODY ECU REFERENCE CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
    ACT+ (1) - Body ground - - Body ground Door lock motor LOCK drive output (All door) Ignition switch on (IG), door lock motor is OFF --> LOCK Below 1 V --> 10 to 14 V
    ACT- (3)- Body ground - - Body ground Door lock motor UNLOCK drive output (All door) ignition switch on (IG), door lock motor is OFF --> UNLOCK Below 1 V --> 10 to 14 V
    GND2 (4) - Body ground - - Body ground Ground Always Below 1 V
    GND1 (5) - Body ground - - Body ground Ground Always Below 1 V
    L1 (9) - Body ground - - Body ground Door lock input Manual door lock is OFF --> LOCK 10 to 14 V --> Below 1 V
    L2 (10) - Body ground - - Body ground Driver key-linked door lock input Driver door key-linked is OFF --> LOCK 10 to 14 V --> Below 1 V
    UL1 (12) - Body ground - - Body ground Door unlock input Manual door lock is OFF --> UNLOCK 10 to 14 V --> Below 1 V
    IG (15) - Body ground - - Body ground Power supply Ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    LCTY (17) - Body ground - - Body ground Rear left door courtesy switch input Door courtesy switch is CLOSE --> OPEN Below 1 V --> 10 to 14 V
    LSWL (20) - Body ground - - Body ground Rear left door lock position switch input Door lock position switch is UNLOCK --> LOCK Below 1 V --> 10 to 14 V
    ACC (22) - Body ground - - Body ground Power supply Ignition switch OFF --> ACC Below 1 V --> 10 to 14 V
    BECU (26) - Body ground - - Body ground Power supply Always 10 to 14 V
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