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PRE-CRASH SAFETY SYSTEM TERMINALS OF ECU

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  1. A0005WVE02

    CHECK DRIVING SUPPORT ECU ASSEMBLY

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H196-3 (BZ) - H196-28 (GND) P - W-B Skid control buzzer assembly output Power switch on (IG), buzzer not sounding 11 to 14 V
    H196-7 (B) - H196-28 (GND) Y - W-B Power source Power switch on (IG) 11 to 14 V
    H196-8 (CA1P) - H196-28 (GND) P - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    H196-9 (CA1N) - H196-28 (GND) GR - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)
    H196-10 (CA2H) - H196-28 (GND) B - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    H196-11 (CA2L) - H196-28 (GND) LG - W-B CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)
    H196-28 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. A00051PE03
      Table 1.
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H196-8 (CA1P) and H196-28 (GND)

        Between H196-10 (CA2H) and H196-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.

    2. A0007RHE03
      Table 2.
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H196-9 (CA1N) and H196-28 (GND)

        Between H196-11 (CA2L) and H196-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.

  2. A0004SGE02

    CHECK MILLIMETER WAVE RADAR SENSOR

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A77-1 (SGND) - Body ground BR - Body ground Ground Always Below 1 Ω
    A77-2 (CA2L) - A77-1 (SGND) P - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    A77-3 (CA2H) - A77-1 (SGND) W - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)
    A77-5 (CA1P) - A77-1 (SGND) B - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)
    A77-6 (CA1N) - A77-1 (SGND) W - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    A77-8 (IGB) - A77-1 (SGND) R - BR Power source Power switch on (IG) 11 to 14 V

    1. A00051PE03
      Table 3.
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between A77-3 (CA2H) and A77-1 (SGND)

        Between A77-5 (CA1P) and A77-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.

    2. A0007RHE03
      Table 4.
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between A77-2 (CA2L) and A77-1 (SGND)

        Between A77-6 (CA1N) and A77-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.