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LANE DEPARTURE ALERT SYSTEM(w/ Steering Control) TERMINALS OF ECU

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  1. A0004ZKE03

    CHECK FORWARD RECOGNITION CAMERA


    1. Disconnect the T12 forward recognition camera connector.

      Note:
      • DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS once the inspection has been completed.

      • Do not apply excessive force to the T12 forward recognition camera connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T12-7 (IGB) - Body ground V - Body ground Power source Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      T12-10 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Tip:

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the T12 forward recognition camera connector.

    4. Measure the waveform according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T12-2 (STRV) - Body ground R - Body ground LIN communication signal Power switch on (IG) Pulse generation
    5. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T12-5 (CA1P) - Body ground R - Body ground CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)

      T12-11 (CA1N) - Body ground LG - Body ground CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)

      T12-6 (CANH) - Body ground B - Body ground CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)

      T12-12 (CANL) - Body ground W - Body ground CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)

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

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between T12-5 (CA1P) and T12-10 (GND)

        Between T12-6 (CANH) and T12-10 (GND)

        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.

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

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between T12-11 (CA1N) and T12-10 (GND)

        Between T12-12 (CANL) and T12-10 (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. A0005WVE02

    CHECK DRIVING SUPPORT ECU ASSEMBLY

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    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)

    H196-23 (SPSW) - H196-28 (GND) R - W-B Steering pad switch signal (Lane departure alert main switch signal) Power switch off, Lane departure alert main switch off 1 MΩ or higher
    Power switch off, Lane departure alert main switch on 228 to 252 Ω
    H196-28 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. A00051PE03
      Table 3.
      *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 4.
      *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.

  3. A0004OHE02

    CHECK STEERING VIBRATION ECU


    1. Measure the waveform, voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Terminal Description Condition Specified Condition
      A-2 (LDA) - z19-1 (GND) LIN communication signal Power switch on (IG) Pulse generation
      z19-4 (IG) - z19-1 (GND) Power source Power switch on (IG) 11 to 14 V
      B-1 (M+) - z19-1 (GND) Steering vibration operation signal

      Power switch on (IG)

      Steering vibration not operating

      Below 1 V

      Power switch on (IG)

      Steering vibration operating

      11 to 14 V
      z19-1 (GND) - Body ground Ground Always Below 1 Ω