LEXUS PARKING ASSIST-SENSOR SYSTEM TERMINALS OF ECU


  1. CLEARANCE WARNING ECU

    A0162LYE03
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    Q37-1 (S7) - Q37-14 (E7) R - W

    Ultrasonic sensor

    (Rear right center sensor)

    		 Signals transmitted from ECU to rear right center sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-2 (S5) - Q37-15 (E5) GR - W

    Ultrasonic sensor

    (Rear right sensor)

    		 Signals transmitted from ECU to rear right sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-3 (S8) - Q37-16 (E8) G - W

    Ultrasonic sensor

    (Rear left center sensor)

    		 Signals transmitted from ECU to rear left center sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-4 (S6) - Q37-17 (E6) P - W

    Ultrasonic sensor

    (Rear left sensor)

    		 Signals transmitted from ECU to rear left sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-5 (S1) - Q37-18 (E1) Y - BR

    Ultrasonic sensor

    (Front right sensor)

    		 Signals transmitted from ECU to front right sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-6 (S4) - Q37-19 (E4) GR- BR

    Ultrasonic sensor

    (Front left sensor)

    		 Signals transmitted from ECU to front left sensor (During OFF sensing)

    Pulse generation

    (see waveform 1)
    Q37-8 (IG) - Q37-27 (E) Y - W-B IG signal/IG power source Engine switch on (IG) 11 to 14 V
    Q37-9 (CBZ) - Q37-27 (E) BE - W-B Buzzer output Ultrasonic sensor detecting Below 1 Ω
    Q37-9 (CBZ) - Q37-27 (E) BE - W-B Buzzer output Ultrasonic sensor not detecting 10 kΩ or higher
    Q37-14 (E7) - Body ground W - Body ground

    Ultrasonic sensor

    (Rear right center sensor) ground

    		 Always Below 1 V
    Q37-15 (E5) - Body ground W - Body ground

    Ultrasonic sensor

    (Rear right sensor) ground

    		 Always Below 1 V
    Q37-16 (E8) - Body ground W - Body ground

    Ultrasonic sensor

    (Rear left center sensor) ground

    		 Always Below 1 V
    Q37-17 (E6) - Body ground W - Body ground

    Ultrasonic sensor

    (Rear left sensor) ground

    		 Always Below 1 V
    Q37-18 (E1) - Body ground BR - Body ground

    Ultrasonic sensor

    (Front right sensor) ground

    		 Always Below 1 V
    Q37-19 (E4) - Body ground BR - Body ground

    Ultrasonic sensor

    (Front left sensor) ground

    		 Always Below 1 V
    Q37-26 (M+) - Q37-27 (E) BR - W-B BEAN communication Engine switch on (IG), clearance sonar main switch on Pulse generation
    Q37-27 (E) - Body ground W-B - Body ground ECU ground Always Below 1 V

    1. A0162ZNE02

      Reference


      1. Waveform 1

        Item Content

        Terminal No.

        (Symbol)

        Q37-5 (S1) - Q37-18 (E1)

        Q37-6 (S4) - Q37-19 (E4)

        Q37-2 (S5) - Q37-15 (E5)

        Q37-4 (S6) - Q37-17 (E6)

        Q37-1 (S7) - Q37-14 (E7)

        Q37-3 (S8) - Q37-16 (E8)
        Tool Setting 2 V/DIV., 100 μsec./DIV.
        Condition Signals transmitted from ECU to sensor (During OFF sensing)