DYNAMIC RADAR CRUISE CONTROL SYSTEM(for 6AR-FSE) TERMINALS OF ECU


  1. CHECK ECM

    B001O51E02
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A75-9 (STP) - D87-53 (E1) BE - W-B Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V
    A75-9 (STP) - D87-53 (E1) BE - W-B Stop light signal Engine switch on (IG), Brake pedal released Below 1 V
    A75-55 (CCS) - A75-41 (ECCS) W - R Cruise control switch circuit Cruise control main switch (ON/OFF button) OFF 1 MΩ or higher
    A75-55 (CCS) - A75-41 (ECCS) W - R Cruise control switch circuit Cruise control main switch (ON/OFF button) ON Below 2.5 Ω
    A75-55 (CCS) - A75-41 (ECCS) W - R Cruise control switch circuit +/RES switch ON 235 to 245 Ω
    A75-55 (CCS) - A75-41 (ECCS) W - R Cruise control switch circuit -/SET switch ON 617 to 643 Ω
    A75-55 (CCS) - A75-41 (ECCS) W - R Cruise control switch circuit CANCEL switch ON 1509 to 1571 Ω
    A75-10 (ST1-) - D87-53 (E1) GR - W-B Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V
    A75-10 (ST1-) - D87-53 (E1) GR - W-B Stop light signal

    Engine switch on (IG),

    Brake pedal released

    		 11 to 14 V
    D87-34 (D) - D87-53 (E1) G - W-B D shift position signal

    Engine switch on (IG),

    Shift lever D or S position

    		 11 to 14 V
    D87-34 (D) - D87-53 (E1) G - W-B D shift position signal

    Engine switch on (IG),

    Shift lever except D or S position

    		 Below 1 V
    A75-43 (SFTD) - D87-53 (E1) L - W-B Down shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V
    A75-43 (SFTD) - D87-53 (E1) L - W-B Down shift switch signal Engine switch on (IG) and shift lever "-" position (Down shift) Below 1 V
    A75-42 (SFTU) - D87-53 (E1) R - W-B Up shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V
    A75-42 (SFTU) - D87-53 (E1) R - W-B Up shift switch signal Engine switch on (IG) and shift lever "+" position (Up shift) Below 1 V

    If the value is not within the specified range, the ECM may have a malfunction.

  2. CHECK DRIVING SUPPORT ECU ASSEMBLY

    B001NQFE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H194-3 (BZ) - H194-28 (GND) P - W-B Skid control buzzer assembly output Engine switch on (IG), buzzer not sounding 11 to 14 V
    H194-7 (B) - H194-28 (GND) Y - W-B Power source Engine switch on (IG) 11 to 14 V
    H194-8 (CA1P) - H194-28 (GND) P - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    H194-9 (CA1N) - H194-28 (GND) GR - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    H194-10 (CA2H) - H194-28 (GND) B - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    H194-11 (CA2L) - H194-28 (GND) LG - W-B CAN communication signal Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    H194-23 (SPSW) - H194-28 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch on Below 1 V
    H194-23 (SPSW) - H194-28 (GND) R - W-B Steering pad switch signal (Distance control switch signal) Engine switch on (IG), Distance control switch off 4.75 to 5.25 V
    H194-28 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. B001NVGE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H194-8 (CA1P) and H194-28 (GND)

        Between H194-10 (CA2H) and H194-28 (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.

    2. B001NMCE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between H194-9 (CA1N) and H194-28 (GND)

        Between H194-11 (CA2L) and H194-28 (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. CHECK MILLIMETER WAVE RADAR SENSOR

    B001OKME03
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A74-1 (SGND) - Body ground BR - Body ground Ground Always Below 1 Ω
    A74-2 (CA2L) - A74-1 (SGND) P - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (see waveform 2)
    A74-3 (CA2H) - A74-1 (SGND) W - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (see waveform 1)
    A74-5 (CA1P) - A74-1 (SGND) B - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (see waveform 1)
    A74-6 (CA1N) - A74-1 (SGND) W - BR CAN communication signal Engine switch on (IG)

    Pulse generation

    (see waveform 2)
    A74-8 (IGB) - A74-1 (SGND) R - BR Power source Engine switch on (IG) 11 to 14 V

    1. B001NVGE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between A74-3 (CA2H) and A74-1 (SGND)

        Between A74-5 (CA1P) and A74-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. B001NMCE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between A74-2 (CA2L) and A74-1 (SGND)

        Between A74-6 (CA1N) and A74-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Engine switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.