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Terminals Of Ecu [08/2012 - ]

  1. CHECK COMBINATION METER 
    Fig 1: Combination Meter Connector Terminal Identification
    GTY150622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      J35-3 (PBLT) - Body ground P - Body ground Passenger seat belt warning light 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 meter may have a malfunction.
  2. CHECK INTEGRATION CONTROL AND PANEL (w/o MULTI-DISPLAY) 
    Fig 2: Integration control And Panel Assembly Connector Terminal Identification (W/O Multi-Display)
    GTY150812Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      J54-13 (PBEW) - Body ground P - Body ground Passenger seat belt warning light 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 CLOCK (w/ MULTI-DISPLAY) 
    Fig 3: Clock Assembly Connector Terminal Identification (W/ Multi-Display)
    GTY124404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      J92-12 (PBEW) - Body ground P - Body ground Passenger seat belt warning light 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 clock may have a malfunction.
  4. CENTER AIRBAG SENSOR 
    Fig 4: Center Airbag Sensor Assembly Connector Terminal Identification
    GTY112932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. Terminal Symbol Destination
    P14-12 FSR+ Occupant classification ECU
    P14-13 FSR- Occupant classification ECU
    Q32-11 DBE+ Front seat inner belt RH (driver side seat belt buckle switch)
    Q32-12 DBE- Front seat inner belt RH (driver side seat belt buckle switch)
  5. CHECK OCCUPANT CLASSIFICATION ECU 
    1. Measure the resistance and voltage according to the value(s) in the table below.
      Fig 5: Occupant Classification ECU Connector Terminal Identification
      GTY155796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      T16-5 (GND) - Body ground W-B - Body ground Occupant classification ECU ground line Always Below 1 Ω
      T16-6 (PS) - T16-15 (GPS) LG - W Pressure sensor signal line Engine switch on (IG) Below 1 to 5 V
      T16-7 (VPS) - T16-5 (GND) Y - W-B Pressure sensor +B line Engine switch on (IG) 4.75 to 5.25 V
      T16-8 (GBT) - T16-5 (GND) G - W-B Belt tension sensor ground line Always Below 1 V
      T16-9 (IG) - T16-5 (GND) B - W-B Occupant classification ECU +B line Engine switch on (IG) 10 to 14 V
      T16-10 (DIA) - T16-5 (GND) W - W-B Diagnosis (DLC3) Engine switch on (IG) Pulse generation
      T16-11 (FSR+) - T16-12 (FSR-) W - B Center airbag sensor communication line Engine switch on (IG) Pulse generation
      T16-12 (FSR-) - T16-5 (GND) B - W-B Center airbag sensor communication ground line Always Below 1 Ω
      T16-13 (BSW) - T16-14 (BGND) B - GR Passenger side buckle switch line Engine switch on (IG) Low: 4 to 7 mA
      Hi: 12 to 18 mA
      T16-14 (BGND) - T16-5 (GND) GR - W-B Passenger side buckle switch ground line Always Below 1 Ω
      T16-15 (GPS) - T16-5 (GND) W - W-B Pressure sensor ground line Always Below 1 Ω
      T16-16 (BT) - T16-5 (GND) R - W-B Belt tension sensor signal line Engine switch on (IG) Below 1 to 5 V
      T16-17 (VBT) - T16-5 (GND) P - W-B Belt tension sensor +B line Engine switch on (IG) 4.75 to 5.25 V
      • If the result is not as specified, the ECU may have a malfunction.
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