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Terminals Of Ecu [07/2015 - ]

  1. CHECK DRIVING SUPPORT ASSEMBLY ECU 
    Fig 1: Check Driving Support Assembly ECU Connector End View
    GTY622099Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H188-3 (BZ) - H188-28 (GND) P - W-B Skid control buzzer assembly output Engine switch on (IG), buzzer not sounding 11 to 14 V
    H188-7 (B) - H188-28 (GND) Y - W-B Power source Engine switch on (IG) 11 to 14 V
    H188-8 (CA1P) - H188-28 (GND) P - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 1)
    H188-9 (CA1N) - H188-28 (GND) GR - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 2)
    H188-10 (CA2H) - H188-28 (GND) B - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 1)
    H188-11 (CA2L) - H188-28 (GND) LG - W-B CAN communication signal Engine switch on (IG) Pulse generation
    (See waveform 2)
    H188-23 (SPSW) - H188-28 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch on Below 1 Ω
    H188-23 (SPSW) - H188-28 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch off 4.75 to 5.25 V
    H188-28 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    1. WAVEFORM 1
      Fig 2: Waveform 1
      GTY633330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between H188-8 (CA1P) and H188-28 (GND)
        Between H188-10 (CA2H) and H188-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    2. WAVEFORM 2
      Fig 3: Waveform 2
      GTY625499Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between H188-9 (CA1N) and H188-28 (GND)
        Between H188-11 (CA2L) and H188-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

  2. CHECK MILLIMETER WAVE RADAR SENSOR 
    Fig 4: Check Millimeter Wave Radar Sensor Connector End View
    GTY680024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A74-1 (SGND) - Body ground BR - Body ground Ground Always Below 1 Ω
    A74-2 (CA2L) - A74-1 (SGND) P - BR CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 2)
    A74-3 (CA2H) - A74-1 (SGND) W - BR CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 1)
    A74-5 (CA1P) - A74-1 (SGND) B - BR CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 1)
    A74-6 (CA1N) - A74-1 (SGND) W - BR CAN communication signal Engine switch on (IG) Pulse generation
    (see waveform 2)
    A74-8 (IGB) - A74-1 (SGND) R - BR Power source Engine switch on (IG) 11 to 14 V
    1. WAVEFORM 1
      Fig 5: Waveform 1
      GTY633330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between A74-3 (CA2H) and A74-1 (SGND)
        Between A74-5 (CA1P) and A74-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

    2. WAVEFORM 2
      Fig 6: Waveform 2
      GTY625499Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. CAN communication signal
        Item Content
        Terminal Name Between A74-2 (CA2L) and A74-1 (SGND)
        Between A74-6 (CA1N) and A74-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

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