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Terminals Of Ecu [07/2015 - ]

  1. OCCUPANT DETECTION ECU 
    Fig 1: Occupant Detection ECU Connector End View
    GTY627616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    W23-1 (+B) - W23-3 (GND) W - W-B Battery Always 11 to 14 V
    W23-2 (DIA) - W23-3 (GND) GR - W-B Diagnosis (DLC3) Engine switch on (IG), Techstream not connected to DLC3 Below 1 V
    W23-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    W23-4 (FSR-) - W23-3 (GND) LG - W-B Airbag sensor assembly communication line Always Below 1 V
    W23-5 (BGND) - W23-3 (GND) P - W-B Passenger side buckle switch ground line Always Below 1 V
    W23-6 (IG) - W23-3 (GND) B - W-B Power source Engine switch on (IG) 11 to 14 V
    W23-7 (FSR+) - W23-4 (FSR-) L - LG Airbag sensor assembly communication line Engine switch on (IG) Pulse generation
    W23-8 (BSW) - W23-5 (BGND) G - P Passenger side buckle switch line Always Pulse generation
    W22-1 (SVC3) - W22-5 (SGD3) GR - W Rear occupant classification sensor LH power supply line Engine switch on (IG) 4.9 to 5.1 V
    W22-2 (SVC4) - W22-6 (SGD4) V - BR Rear occupant classification sensor RH power supply line Engine switch on (IG) 4.9 to 5.1 V
    W22-3 (SIG3) - W22-5 (SGD3) SB - W Rear occupant classification sensor LH signal line Engine switch on (IG) Pulse generation
    W22-4 (SIG4) - W22-6 (SGD4) B - BR Rear occupant classification sensor RH signal line Engine switch on (IG) Pulse generation
    W22-5 (SGD3) - W23-3 (GND) W - W-B Rear occupant classification sensor LH ground line Always Below 1 V
    W22-6 (SGD4) - W23-3 (GND) BR - W-B Rear occupant classification sensor RH ground line Always Below 1 V