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Terminals Of Ecu

  1. CHECK SEAT BELT CONTROL ECU 
    Fig 1: Identifying Seat Belt Control ECU Connector Terminals
    G05314001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CONNECTOR TERMINAL SPECIFICATION

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    V31-18 (PGND) - Body ground W-B - Body ground Seat belt control ECU ground line Always Below 1 Ω
    V31-1 (MOR+) - W31-18 (PGND) B-W-B Seat belt motor RH power source line Power switch ON (IG) 4.0 to 8.5 V
    V31-2 (MOL+) - W31-18 (PGND) GR - W-B Seat belt motor LH power source line Power switch ON (IG) 4.0 to 8.5 V
    V31-3 (IG1) - Body ground G - Body ground Seat belt control ECU power source line Power switch ON (IG) 10 to 14 V
    V31-4 (CANH) - Body ground W - Body ground CAN communication Engine idling Pulse generation
    V31-6 (CANL) - Body ground B - Body ground CAN communication Engine idling Pulse generation
    V31-7 (SIL) GR Diagnosis check Intelligent tester connected to DLC3 Communication is available
    V31-9 (+B) - Body ground L - Body ground Seat belt control ECU power source line Always 10 to 14 V
    V31-10 (MOR-) - Body ground LG - Body ground Seat belt motor RH ground line Power switch ON (IG) 4.0 to 8.5 V
    V31-11 (MOL-) - Body ground BR - Body ground Seat belt motor LH ground line Power switch ON (IG) 4.0 to 8.5 V

    If the result is not as specified, the ECU may have a malfunction.

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