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Terminals Of Ecu

  1. TELEVISION CAMERA ASSY 
    Fig 1: Identifying ECU Terminals (Television Camera Assy)
    G02988075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    ECU TERMINALS REFERENCE (TELEVISION CAMERA ASSY)

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified value
    CV- (T30-1) - CGND (T30-3) BR - W Display signal (-) Always Blow 1 Ω
    CV+ (T30-2) CGND (T30-3) R - W Display signal (+) IG switch ON, shift lever R position Signal waveform 1
    CGND (T30-3) - Body ground W - Body ground Power ground Always Blow 1 Ω
    CB+ (T30-4) CGND (T30-3) B - W Power source IG switch ON, shift lever R position 6V
    1. Reference:

      Oscilloscope waveform

      1. Waveform 1
    ITEM CONTENT

    Item Content
    Measure terminal CV+ - CV-
    Measure set 0.2 V/DIV, 0.2 ms/DIV
    Condition Ignition switch: ON, Shift lever: R position
    Fig 2: Identifying Oscilloscope Waveform
    G02988076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. TELEVISION CAMERA ECU 
    Fig 3: Identifying Television Camera ECU Terminals
    G02988077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TELEVISION CAMERA ECU TERMINALS REFERENCE

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified value
    +B (T32-1) -GND1 (T32-8) L-Y - W-B Battery Supply Always 10 to 14 V
    IG (T32-2) - GND1 (T32-8) B-W - W-B IG signal input IG switch ON 10 to 14 V
    ACC (T32-5) - GND1 (T32-8) GR - W-B ACC signal input IG switch ON or ACC 10 to 14 V
    GND1 (T32-8) - Body ground W-B - Body ground Power ground Always Below 1 Ω
    VG (T31-9) - GND1 (T32-8) Shielded - W-B Display signal output ground (Shielded) Always Below 1 Ω
    R (T31-10) - GND1 (T32-8) Y - W-B Display signal output (Red) While displaying map or back monitor Signal waveform 2
    G (T31-11) - GND1 (T32-8) W - W-B Display signal output (Green) While displaying map or back monitor Signal waveform 2
    B (T31-12) - GND1 (T32-8) R - W-B Display signal output (Blue) While displaying map or back monitor Signal waveform 2
    B1 (T31-13) - GND1 (T32-8) R - W-B Display signal input (Blue) While displaying map Signal waveform 2
    G1 (T31-14) - GND1 (T32-8) W - W-B Display signal input (Green) While displaying map Signal waveform 2
    R1 (T31-15) - GND1 (T32-8) Y - W-B Display signal input (Red) While displaying map Signal waveform 2
    VG1(T31-16) - GND1 (T32-8) Shielded - W-B Display signal input ground (Shielded) Always Below 1 Ω
    CGND (T31-19) - GND1 (T32-8) W - W-B Television camera ground Always Below 1 Ω
    CB+ (T31-20) - GND1 (T32-8) B - W-B Power source to television camera IG switch ON, shift lever R position 6V
    REV (T31-27) - GND1 (T31-6) R-B - W-B Reverse signal input IG switch ON, shift lever R position 10 to 14 V
    TX+ (T31 -29) P AVC-LAN control bus See "Service check mode" -
    TX- (T31-30) L-B AVC-LAN control bus See "Service check mode" -
    SYNC (T31-31) - GND1 (T32-8) G - W-B Synchronized signal output While displaying map or back monitor Signal waveform 3
    VR (T31-32) -GND1 (T32-8) B - W-B Display signal output ground Always Below 1 Ω
    VR1 (T31-33) - GND1 (T32-8) B - W-B Display signal input ground Always Below 1 Ω
    SYN1 (T31-34) -GND1 (T32-8) G - W-B Synchronized signal input While displaying map Signal waveform 3
    TX1- (T31-35) L-B AVC-LAN control bus See "Service check mode" -
    TX1+ (T31-36) P AVC-LAN control bus See "Service check mode" -
    CV- (T31-39) - GND1 (T32-8) Shielded - W-B Television camera ground (Shielded) Always Below 1 Ω
    CV+ (T31-40) - GND1 (T32-8) R - W-B Display signal of television camera input IG switch ON, shift lever R position Signal waveform 1
    1. Reference:

      Oscilloscope waveform

      1. Waveform 1
        ITEM CONTENT

        Item Content
        Measure terminal CV+ - GND1
        Measure set 0.2 V/DIV, 0.2 ms/DIV
        Condition Ignition switch: ON, Shift lever: R position
        Fig 4: Identifying Oscilloscope Waveform
        G02988078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. (2) Waveform 2 
        ITEM CONTENT

        Item Content
        Terminal R, G, B, R1, G1, B1, - GND1
        Measure set 200 mV/DIV, 10 ms/DIV
        Condition Image is being displayed (Back guide monitor system or navigation system).
        Fig 5: Identifying Oscilloscope Waveform
        G02988079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Waveform 3
        ITEM CONTENT

        Item Content
        Terminal SYNC, SYN1 - GND1
        Measure set 500 mV/DIV, 10 ms/DIV
        Condition Image is being displayed (Back guide monitor system or navigation system).
        Fig 6: Identifying Oscilloscope Waveform
        G02988080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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