DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK POWER MANAGEMENT CONTROL ECU

    B002C2FE05
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A36-10 (D) - N91-6 (E1) L - W-B Shift lever position signal Power switch on (IG), shift lever in D 11 to 14 V
    Power switch on (IG), shift lever not in D 0 to 1.5 V
    N92-20 (SFTD) - N91-6 (E1) W - W-B Transmission control Power switch on (IG), shift lever in S position 11 to 14 V
    Power switch on (IG), shift lever in (-) 0 to 1.5 V
    N92-21 (SFTU) - N91-6 (E1) Y - W-B Transmission control Power switch on (IG), shift lever in S position 11 to 14 V
    Power switch on (IG), shift lever in (+) 0 to 1.5 V
    N92-22 (M) - N91-6 (E1) R - W-B Transmission control Power switch on (IG), shift lever in S position 11 to 14 V
    Power switch on (IG), shift lever not in S position 0 to 1.5 V

  2. CHECK DRIVING SUPPORT ECU ASSEMBLY

    B002BVUE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    N173-3 (BZ) - N173-28 (GND)

    P - BR*1

    P - W-B*2

    		 Skid control buzzer assembly output Power switch on (IG), skid control buzzer assembly not sounding 11 to 14 V
    N173-7 (B) - N173-28 (GND)

    L - BR*1

    L - W-B*2

    		 Power source Power switch on (IG) 11 to 14 V
    N173-8 (CA1P) - N173-28 (GND)

    Y - BR*1

    Y - W-B*2

    		 CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    N173-9 (CA1N) - N173-28 (GND)

    W - BR*1

    W - W-B*2

    		 CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)
    N173-10 (CA2H) - N173-28 (GND)

    L - BR*1

    V - W-B*2

    		 CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 1)
    N173-11 (CA2L) - N173-28 (GND)

    LG - BR*1

    LG - W-B*2

    		 CAN communication signal Power switch on (IG)

    Pulse generation

    (See waveform 2)
    N173-23 (SPSW) - N173-28 (GND)

    Y - BR*1

    Y - W-B*2

    		 Steering pad switch signal (Distance control switch signal) Power switch on (IG), Vehicle-to-vehicle distance control switch on Below 1 Ω
    Power switch on (IG), Vehicle-to-vehicle distance control switch off 4.75 to 5.25 V
    N173-28 (GND) - Body ground

    BR - Body ground*1

    W-B - Body ground*2

    		 Ground Always Below 1 Ω
    N173-17 (CCS) - N173-28 (GND)

    SB - BR*1

    SB - W-B*2

    		 Cruise control main switch signal

    Power switch on (IG)

    Main switch off

    		 1 MΩ or higher

    Power switch on (IG)

    CANCEL switch held on

    		 1510 to 1570 Ω

    Power switch on (IG)

    -SET switch held on

    		 620 to 640 Ω

    Power switch on (IG)

    +RES switch held on

    		 235 to 245 Ω

    Power switch on (IG)

    Main switch on

    		 Below 2.5 Ω
    N173-15 (STP-) - N173-28 (GND)

    R - BR*1

    R - W-B*2

    		 Stop light signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released 0 to 1.5 V
    N173-1 (ST1-) - N173-28 (GND)

    GR - BR*1

    GR - W-B*2

    		 Stop light signal (opposite to STP terminal)

    Power switch on (IG)

    Brake pedal depressed

    		 0 to 1.5 V

    Power switch on (IG)

    Brake pedal released

    		 7.5 to 14 V

    • *1: for LHD

    • *2: for RHD


    1. B002C2PE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between N173-8 (CA1P) and N173-28 (GND)

        Between N173-10 (CA2H) and N173-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. B002BWRE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between N173-9 (CA1N) and N173-28 (GND)

        Between N173-11 (CA2L) and N173-28 (GND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

  3. CHECK MILLIMETER WAVE RADAR SENSOR

    B002BTME02
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    B17-1 (SGND) - Body ground BR - Body ground Ground Always Below 1 Ω
    B17-2 (CA2L) - B17-1 (SGND) L - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    B17-3 (CA2H) - B17-1 (SGND) B - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)
    B17-5 (CA1P) - B17-1 (SGND) G - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 1)
    B17-6 (CA1N) - B17-1 (SGND) B - BR CAN communication signal Power switch on (IG)

    Pulse generation

    (see waveform 2)
    B17-8 (IGB) - B17-1 (SGND) W - BR Power source Power switch on (IG) 11 to 14 V

    1. B002C2PE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 1


      1. CAN communication signal

        Item Content
        Terminal Name

        Between B17-3 (CA2H) and B17-1 (SGND)

        Between B17-5 (CA1P) and B17-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.

    2. B002BWRE01
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 2


      1. CAN communication signal

        Item Content
        Terminal Name

        Between B17-2 (CA2L) and B17-1 (SGND)

        Between B17-6 (CA1N) and B17-1 (SGND)
        Tester Range 1 V/DIV., 10 μsec./DIV.
        Condition Power switch on (IG)

        Tech Tips

        The waveform varies depending on the CAN communication signal.