FORWARD RECOGNITION CAMERA SYSTEM TERMINALS OF ECU


  1. 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 R20 forward recognition camera connector.

    B00111KE02

    1. CHECK FORWARD RECOGNITION CAMERA

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R20-1 (HTR) - Body ground* V - Body ground Forward recognition with heater hood sub-assembly operation signal Engine switch on (IG), and the forward recognition with heater hood sub-assembly operating Below 1 V
      Engine switch on (IG), and the forward recognition with heater hood sub-assembly not operating 11 to 14 V
      R20-7 (IGB) - Body ground B - Body ground Power source Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      R20-10 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω
      R20-5 (CA1P) - R20-10 (GND) G - BR CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 1)
      R20-11 (CA1N) - R20-10 (GND) B - BR CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 2)
      R20-6 (CANH) - R20-10 (GND) R - BR CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 1)
      R20-12 (CANL) - R20-10 (GND) P - BR CAN communication signal Engine switch on (IG)

      Pulse generation

      (See waveform 2)

      *: w/ Camera Heater

    2. B0010WCE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between R20-5 (CA1P) and R20-10 (GND)

        Between R20-6 (CANH) and R20-10 (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.

    3. B0010UVE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between R20-11 (CA1N) and R20-10 (GND)

        Between R20-12 (CANL) and R20-10 (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.