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Terminals Of Ecu

  1. CHECK NO. 1 METER ECU 
    Fig 1: Identifying No. 1 Meter ECU Connector Terminals
    G04944425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value (s) in the table below.
    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    L10-2 (PBLT) - Body ground SB - Body ground Passenger seat belt signal Passenger seat is occupied, seat belt is fastened Below 1 Ω
    Passenger seat is occupied, seat belt is unfastened 10 kΩ or higher

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

  2. CHECK INTEGRATION CONTROL AND PANEL (w/o Multi-display) 
    Fig 2: Identifying Integration Control And Panel (W/O Multi-Display) Connector Terminals
    G04944426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value (s) in the table below.
    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    L35-21 (PBEW) - Body ground SB - Body ground Passenger seat belt signal Passenger seat is occupied, seat belt is fastened Below 1 Ω
    Passenger seat is occupied, seat belt is unfastened 10 kΩ or higher

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

  3. CHECK MULTI-DISPLAY (w/ Multi-display) 
    Fig 3: Identifying Multi-Display (W/ Multi-Display) Connector Terminals
    G04944427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value (s) in the table below.
    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    L59-21 (PBEW) - Body ground SB - Body ground Passenger seat belt signal Passenger seat is occupied, seat belt is fastened Below 1 Ω
    Passenger seat is occupied, seat belt is unfastened 10 kΩ or higher

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

  4. CENTER AIRBAG SENSOR 
    Fig 4: Identifying Center Airbag Sensor Connector Terminals
    G04944428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CENTER AIRBAG SENSOR REFERENCE

    Terminal No. Terminal Symbol Destination
    S8-10 LBE+ Front seat inner belt LH (Seat belt buckle switch LH)
    R5-16 FSR+ Occupant classification ECU
    R5-22 FSR- Occupant classification ECU
  5. CHECK OCCUPANT CLASSIFICATION ECU 
    Fig 5: Identifying Occupant Classification ECU Connector Terminals
    G04944429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    e10-5 (GND) - Body ground W-B - Body ground Occupant classification ECU ground line Always Below 1 Ω
    e10-6 (PS) - e10-15 (GPS) P - V Pressure sensor signal line Engine switch on (IG) Below 1 V
    e10-7 (VPS) - e10-5 (GND) R - W-B Pressure sensor +B line Engine switch on (IG) 4.75 to 5.25 V
    e10-8 (GBT) - e10-5 (GND) GR - W-B Belt tension sensor ground line Always Below 1 V
    e10-9 (IG) - e10-5 (GND) L - W-B Occupant classification ECU +B line Engine switch on (IG) 11 to 14 V
    e10-10 (DIA) - e10-5 (GND) R - W-B Diagnosis (DLC3) Engine switch on (IG) Pulse generation
    e10-11 (FSR+) - e10-12 (FSR-) W - B Center airbag sensor communication line Engine switch on (IG) Pulse generation
    e10-12 (FSR-) - e10-5 (GND) B - W-B Center airbag sensor communication line (-) Always Below 1 Ω
    e10-13 (BSW) - e10-14 (BGND) W - Y Passenger side buckle switch line Engine switch on (IG) Low: 4 to 7 mA
    Hi: 12 to 18 mA
    e10-14 (BGND) - e10-5 (GND) Y - W-B Passenger side buckle switch ground line Always Below 1 Ω
    e10-15 (GPS) - e10-5 (GND) V - W-B Pressure sensor ground line Always Below 1 Ω
    e10-16 (BT) - e10-5 (GND) BR - W-B Belt tension sensor signal line Engine switch on (IG) Below 1 V
    e10-17 (VBT) - e10-5 (GND) G - W-B Belt tension sensor +B line Engine switch on (IG) 4.75 to 5.25 V
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