FORWARD RECOGNITION CAMERA SYSTEM TERMINALS OF ECU

  1. CHECK FORWARD RECOGNITION CAMERA

    E256359E40

    1. Disconnect the Q17 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 Q17 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

      Q17-7 (IGB) - Body ground

      GR - Body ground

      Power source

      Power switch on (IG)

      11 to 14 V

      Power switch off

      Below 1 V

      Q17-10 (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 Q17 forward recognition camera connector.

    4. w/ Camera Heater:

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Q17-1 (HTR) - Body ground

      R - Body ground

      Forward recognition with heater hood sub-assembly operation signal

      Power switch on (IG), and the forward recognition with heater hood sub-assembly operating

      Below 1 V

      Power switch on (IG), and the forward recognition with heater hood sub-assembly not operating

      11 to 14 V

    5. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      Q17-5 (CA1P) - Q17-10 (GND)

      G - W-B

      CAN communication signal

      Power switch on (IG)

      Pulse generation

      (See waveform 1)

      Q17-11 (CA1N) - Q17-10 (GND)

      LG - W-B

      CAN communication signal

      Power switch on (IG)

      Pulse generation

      (See waveform 2)

      Q17-6 (CANH) - Q17-10 (GND)

      L - W-B

      CAN communication signal

      Power switch on (IG)

      Pulse generation

      (See waveform 1)

      Q17-12 (CANL) - Q17-10 (GND)

      W - W-B

      CAN communication signal

      Power switch on (IG)

      Pulse generation

      (See waveform 2)
    6. A292386E03

      WAVEFORM 1

      1. CAN communication signal

        Item

        Content

        Terminal Name

        Between Q17-5 (CA1P) and Q17-10 (GND)

        Between Q17-6 (CANH) and Q17-10 (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. A292387E07

      WAVEFORM 2

      1. CAN communication signal

        Item

        Content

        Terminal Name

        Between Q17-11 (CA1N) and Q17-10 (GND)

        Between Q17-12 (CANL) and Q17-10 (GND)

        Tester Range

        1 V/DIV., 10 μsec./DIV.

        Condition

        Power switch on (IG)
        Tip:

        The waveform varies depending on the CAN communication signal.