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


  1. CHECK FORWARD RECOGNITION CAMERA

    B001O23E03

    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 Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      T12-10 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      Tech Tips

      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 Engine 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 Engine switch on (IG)

      Pulse generation

      (See waveform 1)
      T12-11 (CA1N) - Body ground LG - Body ground CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 2)
      T12-6 (CANH) - Body ground B - Body ground CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 1)
      T12-12 (CANL) - Body ground W - Body ground CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 2)
    6. B001NVGE01
      *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 Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    7. B001NMCE01
      *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 Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  2. CHECK DRIVING SUPPORT ECU ASSEMBLY

    B001OCFE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H194-7 (B) - H194-28 (GND) Y - W-B Power source Engine switch on (IG) 11 to 14 V
    H194-8 (CA1P) - H194-28 (GND) P - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    H194-9 (CA1N) - H194-28 (GND) GR - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    H194-10 (CA2H) - H194-28 (GND) B - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    H194-11 (CA2L) - H194-28 (GND) LG - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    H194-23 (SPSW) - H194-28 (GND) R - W-B Steering pad switch signal (Lane departure alert main switch signal) Engine switch off, Lane departure alert main switch off 1 MΩ or higher
    Engine switch off, Lane departure alert main switch on 228 to 252 Ω
    H194-28 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. B001NVGE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H194-8 (CA1P) and H194-28 (GND)

        Between H194-10 (CA2H) and H194-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. B001NMCE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H194-9 (CA1N) and H194-28 (GND)

        Between H194-11 (CA2L) and H194-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  3. CHECK STEERING VIBRATION ECU

    B001O7OE02

    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) - z17-1 (GND) LIN communication signal Engine switch on (IG) Pulse generation
      z17-4 (IG) - z17-1 (GND) Power source Engine switch on (IG) 11 to 14 V
      B-1 (M+) - z17-1 (GND) Steering vibration operation signal

      Engine switch on (IG)

      Steering vibration not operating

      		 Below 1 V

      Engine switch on (IG)

      Steering vibration operating

      		 11 to 14 V
      z17-1 (GND) - Body ground Ground Always Below 1 Ω