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Terminals Of Ecu

  1. CHECK OCCUPANT CLASSIFICATION ECU 
    Fig 1: Occupant Classification ECU Connector Terminals
    GTY138854Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    O3-5 (GND) - Body ground W-B - Body ground Occupant classification ECU ground line Always Below 1 Ω
    O3-6 (PS) - O3-15 (GPS) LG - L Pressure sensor signal line Ignition switch ON 0 to 5 V
    O3-7 (VPS) - O3-5 (GND) GR - W-B Pressure sensor +B line Ignition switch ON 4.75 to 5.25 V
    O3-8 (GBT) - O3-5 (GND) BR - W-B Belt tension sensor ground line Always Below 1 V
    O3-9 (IG) - O3-5 (GND) B - W-B Occupant classification ECU +B line Ignition switch ON 10 to 14 V
    O3-10 (DIA) - O3-5 (GND) W - W-B Diagnosis (DLC3) Ignition switch ON Pulse generation
    O3-11 (FSR+) - O3-12 (FSR-) G-R - G-B Center airbag sensor communication line Ignition switch ON Pulse generation
    O3-12 (FSR-) - O3-5 (GND) G-B - W-B Center airbag sensor communication line (-) Always Below 1 Ω
    O3-13 (BSW) - O3-14 (BGND) R - B Passenger side buckle switch line Ignition switch ON Low: 4 to 7 mA
    Hi: 12 to 18 mA
    O3-14 (BGND) - O3-5 (GND) B - W-B Passenger side buckle switch ground line Always Below 1 Ω
    O3-15 (GPS) - O3-5 (GND) L - W-B Pressure sensor ground line Always Below 1 Ω
    O3-16 (BT) - O3-5 (GND) P - W-B Belt tension sensor signal line Ignition switch ON 0 to 5 V
    O3-17 (VBT) - O3-5 (GND) L-Y - W-B Belt tension sensor +B line Ignition switch ON 4.75 to 5.25 V