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Terminals Of Ecu [08/2016 - ]

  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 O9 forward recognition camera connector.
    Fig 1: Forward Recognition Camera Connector End View
    GTY688440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O9 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
      O9-7 (IGB) - O9-10 (GND) R - W-B Power source Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      O9-10 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    3. Reconnect the O9 forward recognition camera connector.
    4. 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
      O9-5 (CA1P) - O9-10 (GND) P - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 1)
      O9-11 (CA1N) - O9-10 (GND) W - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 2)
      O9-6 (CANH) - O9-10 (GND) V - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 1)
      O9-12 (CANL) - O9-10 (GND) W - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 2)
      1. WAVEFORM 1
        Item Content
        Terminal Name Between O9-5 (CA1P) and O9-10 (GND)
        Between O9-6 (CANH) and O9-10 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY527215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. WAVEFORM 2
        Item Content
        Terminal Name Between O9-11 (CA1N) and O9-10 (GND)
        Between O9-12 (CANL) and O9-10 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY531906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK DRIVING SUPPORT ECU ASSEMBLY 
    Fig 2: Driving Support ECU Assembly Connector End View
    GTY693609Courtesy 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
      E71-7 (B) - E71-28 (GND) R - W-B Power source Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      E71-23 (SPSW) - E71-28 (GND) GR - W-B Steering pad switch signal
      (Lane departure alert main switch signal)      		 Ignition switch off
      Lane departure alert main switch off      		 1 MΩ or higher
      Ignition switch off
      Lane departure alert main switch on      		 228 to 252 Ω
      E71-28 (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 driving support ECU assembly is suspected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E71-8 (CA1P) - E71-28 (GND) GR - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 1)
      E71-9 (CA1N) - E71-28 (GND) W - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 2)
      E71-10 (CA2H) - E71-28 (GND) P - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 1)
      E71-11 (CA2L) - E71-28 (GND) W - W-B CAN communication signal Ignition switch ON Pulse generation
      (See waveform 2)
      1. WAVEFORM 1
        Item Content
        Terminal Name Between E71-8 (CA1P) - E71-28 (GND)
        Between E71-10 (CA2H) - E71-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY527215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. WAVEFORM 2
        Item Content
        Terminal Name Between E71-9 (CA1N) - E71-28 (GND)
        Between E71-11 (CA2L) - E71-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Ignition switch ON

        HINT: 

        The waveform varies depending on the CAN communication signal.

        GTY531906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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