LKA/LDA SYSTEM TERMINALS OF ECU


  1. CHECK FORWARD RECOGNITION CAMERA

    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 Y17 forward recognition camera connector.


    1. CHECK FORWARD RECOGNITION CAMERA

      B002C2IE02
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Y17-2 (STRV) - Body ground B - Body ground LIN communication signal Power switch on (IG) Pulse generation
      Y17-7 (IGB) - Body ground L - Body ground Power source Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      Y17-10 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Y17-5 (CA1P) - Y17-10 (GND) L - W-B CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)
      Y17-11 (CA1N) - Y17-10 (GND) LG - W-B CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)
      Y17-6 (CANH) - Y17-10 (GND) Y - W-B CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)
      Y17-12 (CANL) - Y17-10 (GND) W - W-B CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)
    2. B002C2PE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between Y17-5 (CA1P) and Y17-10 (GND)

        Between Y17-6 (CANH) and Y17-10 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    3. B002BWRE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between Y17-11 (CA1N) and Y17-10 (GND)

        Between Y17-12 (CANL) and Y17-10 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  2. DRIVING SUPPORT ECU ASSEMBLY


    1. CHECK DRIVING SUPPORT ECU ASSEMBLY

      B002BVUE02
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N173-7 (B) - N173-28 (GND)

      L - BR*1

      L - W-B*2

      		 Power source Power switch on (IG) 11 to 14 V
      N173-8 (CA1P) - N173-28 (GND)

      Y - BR*1

      Y - W-B*2

      		 CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)
      N173-9 (CA1N) - N173-28 (GND)

      W - BR*1

      W - W-B*2

      		 CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)
      N173-10 (CA2H) - N173-28 (GND)

      L - BR*1

      V - W-B*2

      		 CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 1)
      N173-11 (CA2L) - N173-28 (GND)

      LG - BR*1

      LG - W-B*2

      		 CAN communication signal Power switch on (IG)

      Pulse generation

      (See waveform 2)
      N173-23 (SPSW) - N173-28 (GND)

      Y - BR*1

      Y - W-B*2

      		 Steering pad switch signal (LKA/LDA main switch signal) Power switch off, LKA/LDA main switch off 10 kΩ or higher
      Steering pad switch signal (LKA/LDA main switch signal) Power switch off, LKA/LDA main switch on 228 to 252 Ω
      N173-28 (GND) - Body ground

      BR - Body ground*1

      W-B - Body ground*2

      		 Ground Always Below 1 Ω

      • *1: for LHD

      • *2: for RHD

    2. B002C2PE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between N173-8 (CA1P) and N173-28 (GND)

        Between N173-10 (CA2H) and N173-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    3. B002BWRE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between N173-9 (CA1N) and N173-28 (GND)

        Between N173-11 (CA2L) and N173-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  3. STEERING VIBRATION ECU


    1. CHECK STEERING VIBRATION ECU

      B002BMLE02
      Terminal No. (Symbol) Terminal Description Condition Specified Condition
      B-2 (LDA) - A-1 (GND) LIN communication signal Power switch on (IG) Pulse generation
      A-4 (IG) - A-1 (GND) Power source Power switch on (IG) 11 to 14 V
      C-1 (M+) - A-1 (GND) Steering vibration operation signal

      Power switch on (IG)

      Steering vibration not operating

      		 Below 1 V

      Power switch on (IG)

      Steering vibration operating

      		 Pulse generation
      A-1 (GND) - Body ground Ground Always Below 1 Ω