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HOMESERVICE MANUALSTOYOTA2009YARIS S, 4D HATCHBACKREPAIR AND DIAGNOSISRESTRAINTSAIR BAG, SRSSUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION SYSTEMTERMINALS OF ECU
2009 Toyota Yaris S, 4D Hatchback

Terminals Of Ecu

2009 Toyota Yaris S, 4D HatchbackSECTION Terminals Of Ecu
  1. OCCUPANT CLASSIFICATION ECU 
    Fig 1: Identifying Connector Terminals Of ECU
    G04830159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CONNECTOR TERMINAL REFERENCE

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    +B(J24-1) - GND (J24-3) V-W-B Power source (ECU-B Fuse) Always 11 to 14 V
    DIA (J24-2) - GND (J24-3) G-W-B Diagnosis (DLC3) Ignition switch on Pulse generation
    GND (J24-3) - Body ground W-B - Body ground Ground Always Below 1 Ω
    FSR- (J24-4) - GND (J24-3) Y-W-B Center airbag sensor assembly communication line (-) Always Below 1 Ω
    BGND (J24-5) - GND (J24-3) P-W-B Passenger side buckle switch ground line Always Below 1 Ω
    IG (J24-7) - GND (J24-3) O-W-B Power source (IG2 Fuse) Ignition switch on 11 to 14 V
    FSR+ (J24-8) - FSR-(J24-4) GR-Y Center airbag sensor assembly communication line Ignition switch on Pulse generation
    BSW (J24-9) - BGND (J24-5) O-P Passenger side buckle switch line Buckle switch ON
    Buckle switch OFF    		 Pulse generation
    SGD1 (U1-1)-GND (J24-3) G-W-B Occupant classification sensor front LH ground line Always Below 1 Ω
    SGD2(U1-2)-GND (J24-3) O-W-B Occupant classification sensor front RH ground line Always Below 1 Ω
    SGD3(U1-3)-GND (J24-3) W-W-B Occupant classification sensor rear LH ground line Always Below 1 Ω
    SGD4(U1-4)-GND (J24-3) BR - W-B Occupant classification sensor rear RH ground line Always Below 1 Ω
    SVC1 (111-11)-SGD1 (U1-1) R-G Occupant classification sensor front LH power supply line Ignition switch on, load is applied to occupant classification sensor front LH 4.5 to 5.1 V
    SVC2(U1-12)-SGD2 (U1-2) W-O Occupant classification sensor front RH power supply line Ignition switch on, load is applied to occupant classification sensor front RH 4.5 to 5.1 V
    SVC3(U1-5)-SGD3 (U1-3) GR-W Occupant classification sensor rear LH power supply line Ignition switch on, load is applied to occupant classification sensor rear LH 4.5 to 5.1 V
    SVC4(U1-6)-SGD4 (U1-4) V-BR Occupant classification sensor rear RH power supply line Ignition switch on, load is applied to occupant classification sensor rear RH 4.5 to 5.1 V
    SIG1 (U1-7)-SGD1 (U1-1) SB-G Occupant classification sensor front LH signal line Ignition switch on, load is applied to occupant classification sensor front LH 0.2 to 4.7 V
    SIG2(U1-8)-SGD2 (U1-2) L-0 Occupant classification sensor front RH signal line Ignition switch on, load is applied to occupant classification sensor front RH 0.2 to 4.7 V
    SIG3(U1-9)-SGD3 (U1-3) Y-W Occupant classification sensor rear LH signal line Ignition switch on, load is applied to occupant classification sensor rear LH 0.2 to 4.7 V
    SIG4(U1-10)-SGD4 (U1-4) R-BR Occupant classification sensor rear RH signal line Ignition switch on, load is applied to occupant classification sensor rear RH 0.2 to 4.7 V
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