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Terminals Of Ecu [06/2018 - 06/2021]

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  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 Techstream once the inspection has been completed.
    • Do not apply excessive force to the forward recognition camera connector.
    GTY880910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T9-7 (IGB) - T9-10 (GND) B - W-B Power source Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      T9-10 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    2. Check for pulses according to the value(s) in the table below.

      HINT: 

      If the waveform is not similar to that shown in the illustration, a malfunction of a CAN bus line, terminating resistor, or the forward recognition camera is suspected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      T9-5 (CA1P) - T9-10 (GND) W - W-B CAN communication signal Engine switch on (IG) Pulse generation
      (See waveform 1)
      T9-11 (CA1N) - T9-10 (GND) B - W-B CAN communication signal Engine switch on (IG) Pulse generation
      (See waveform 2)
      T9-6 (CANH) - T9-10 (GND) G - W-B CAN communication signal Engine switch on (IG) Pulse generation
      (See waveform 1)
      T9-12 (CANL) - T9-10 (GND) R - W-B CAN communication signal Engine switch on (IG) Pulse generation
      (See waveform 2)
      1. WAVEFORM 1
        Item Content
        Terminal Name Between T9-5 (CA1P) and T9-10 (GND)
        Between T9-6 (CANH) and T9-10 (GND)
        Tester Range 1 V/DIV., 10 μs/DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY799268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. WAVEFORM 2
        Item Content
        Terminal Name Between T9-11 (CA1N) and T9-10 (GND)
        Between T9-12 (CANL) and T9-10 (GND)
        Tester Range 1 V/DIV., 10 μs/DIV.
        Condition Engine switch on (IG)

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY941727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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