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Terminals Of Ecu

  1. CHECK NO. 1 METER ECU 
    Fig 1: Identifying No. 1 Meter ECU Connector Terminal L10
    G05775803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value (s) in the table below.
    CONNECTOR TERMINAL REFERENCE 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 DISPLAY AND NAVIGATION ASSEMBLY (MULTI-DISPLAY) 
    Fig 2: Identifying Display And Navigation Assembly Connector Terminal L59
    G04944427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value (s) in the table below.
    CONNECTOR TERMINAL REFERENCE 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.

  3. CENTER AIRBAG SENSOR 
    Fig 3: Locating Center Airbag Sensor S8, L73 And R5
    G04944428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL REFERENCE CHART

    Terminal No. Symbols 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
  4. CHECK OCCUPANT CLASSIFICATION ECU 
    Fig 4: Identifying Occupant Classification ECU Connector Terminal E10
    G04944429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CONNECTOR TERMINAL REFERENCE 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 Power switch ON (IG) Below 1 V
    e10-7 (VPS) - e10-5 (GND) R - W-B Pressure sensor +B line Power 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 Power switch ON (IG) 11 to 14 V
    e10-10 (DIA) - e10-5 (GND) R - W-B Diagnosis (DLC3) Power switch ON (IG) Pulse generation
    e10-11 (FSR+) - e10-12 (FSR-) W - B Center airbag sensor communication line Power 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 Power 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 Power switch ON (IG) Below 1 V
    e10-17 (VBT) - e10-5 (GND) G - W-B Belt tension sensor +B line Power switch ON (IG) 4 75 to 5 25 V
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