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Terminals Of Ecu

  1. MULTI-DISPLAY: 
    Fig 1: Identifying Multi-Display ECU Terminals
    G04092901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    MULTI-DISPLAY ECU TERMINALS VOLTAGE SPECIFICATION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    V+ (M3-1) - GND (M5-3) G - W-B Display signal DVD is played on multi-display A waveform synchronized with display signals is output.
    V- (M3-4) - Body ground R - Body ground Ground Always Below 1 V
    SLD (M3-5) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    GND (M4-3) - Body ground W-B - Body ground Ground Always Below 1 V
    MIC+ (M4-4) - GND (M5-3) G-W - B Microphone voice signal See "microphone check" (See NAVIGATION CHECK MODE  ) -
    MIC- (M4-5) - Body ground R - Body ground Microphone voice signal See "microphone check" (See NAVIGATION CHECK MODE  ) -
    MACC (M4-6) - GND (M5-3) Y-W - B Microphone AMP power supply Turn ignition switch OFF --> ON Below 1 V --> 5 V
    TX+ (M4-13) - GND (M5-3) P - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TX- (M4-14) - GND (M5-3) L - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    SLD (M4-17) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    MCO+ (M4-18) - GND (M5-3) BR - W-B Microphone voice signal See "microphone check" (See NAVIGATION CHECK MODE  ) -
    MCO- (M4-19) - GND (M5-3) Y - W-B Microphone voice signal See "microphone check" (See NAVIGATION CHECK MODE  ) -
    SLD (M4-20) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    IVO+ (M4-21) - IVO- (M4-22) R - G Telephone voice signal (bluetooth) Multi-display is receiving the other caller's voice signals via Bluetooth. A waveform synchronized with sounds is output.
    VR (M4-23) - GND (M5-3) Y - W-B Video return signal Turn ignition switch OFF Below 1 V
    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    R (M4-24) - GND (M5-3) L - W-B Display signal (red) Navigation display is on A waveform synchronized with display signals is output.
    G (M4-25) - GND (M5-3) W - W-B Display signal (green) Navigation display is on A waveform synchronized with display signals is output.
    B (M4-26) - GND (M5-3) R - W-B Display signal (blue) Navigation display is on A waveform synchronized with display signals is output.
    SYNC (M4-27) - GND (M5-3) BR - W-B Display signal (synchronize) Navigation display is on A waveform synchronized with display signals is output.
    VG (M4-28) - GND (M5-3) Shielded - Body ground Shielded ground Always Below 1 V
    ILL+ (M5-1) - GND (M5-3) G - W-B Illumination signal Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    ILL- (M5-2) - Body ground W - Body ground Illumination signal Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    GND (M5-3) - Body ground W-B - Body ground Ground Always Below 1 V
    TX1+ (M5-4) - GND (M5-3) Y - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TX1- (M5-5) - GND (M5-3) BR - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    TC (M5-7) - GND (M5-3) P - W-B Diagnosis ON signal Turn ignition switch to ON 9 to 14 V
    F (M5-8) - GND (M5-3) V - W-B Hazard signal Turn hazard switch OFF --> ON Below 1 V --> 10 to 14 V or below 1 V
    LIN (M5-9) - GND (M5-3) Y - W-B Passenger airbag ON indicator Ignition SW ON Passenger airbag on indicator OFF --> ON Below 1 V --> 10 to 14 V
    IG (M5-10) - GND (M5-3) LG - W-B Ignition (ON) Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    ACC (M5-11) - GND (M5-3) GR - W-B Accessory (ON) Turn ignition switch OFF --> ACC or ON Below 1 V --> 10 to 14 V
    +B1 (M5-12) - GND (M5-3) G - W-B Battery Always 10 to 14 V
    PKB (M5-16) - GND (M5-3) W - W-B Parking brake signal Turn parking brake switch ON --> OFF Below 1 V --> 10 to 14 V
    ADIM (M5-17) - GND (M5-3) SB - W-B Illumination (auto dimmer) signal Ignition switch ON, light control switch TAIL or ON and automatic light control sensor covered by hand Above 9 V
    TX2+ (M5-18) - GND (M5-3) R - W-B AVC-LAN communication signal Turn ignition switch to ON 2 to 3 V
    TX2- (M5-19) - GND (M5-3) B - W-B AVC-LAN communication signal Turn ignition switch to ON 2 to 3 V
    AIR (M5-20) - GND (M5-3) BR - W-B Passenger airbag OFF indicator Ignition SW ON Passenger airbag off indicator OFF --> ON Below 1 V --> 10 to 14 V
    PBEW (M5-21) - GND (M5-3) O - W-B Passenger (front) seat belt warning signal Turn ignition switch to ON, front passenger seat and front seat buckle switch ON (Belt unfastened) --> OFF (Belt fastened) 10 to 14 V --> Below 1 V
    SPD (M5-25) - GND (M5-3) SB - W-B Speed signal from combination meter See "Vehicle Signal Check Mode" (See DISPLAY CHECK MODE  ) -
    HSY (M7-1) - GND (M5-3) P - W-B Theft deterrent indicator signal Insert ignition key --> Remove key from ignition key cylinder Below 1 V --> Pulse generation
    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    ILL- (M7-5) - Body ground W - Body ground Illumination signal Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
  2. NAVIGATION ECU: 
    Fig 2: Identifying Navigation ECU Terminals
    G04092902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NAVIGATION ECU TERMINALS VOLTAGE SPECIFICATION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    VR (N2-1) - GND1 (N3-17) Y - W-B Video return signal Turn ignition switch OFF Below 1 V
    R (N2-2) - GND1 (N3-17) G - W-B Display signal (red) Navigation display is on A waveform synchronized with display signals is output.
    B (N2-3) - GND1 (N3-17) R - W-B Display signal (blue) Navigation display is on A waveform synchronized with display signals is output.
    TX+ (N2-5) - GND1 (N3-17) R - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    VG (N2-6) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    G (N2-7) - GND1 (N3-17) W - W-B Display signal (green) Navigation display is on A waveform synchronized with display signals is output.
    SYNC (N2-8) - GND1 (N3-17) B - W-B Display signal (synchronize) Navigation display is on A waveform synchronized with display signals is output.
    TX- (N2-10) - GND1 (N3-17) Y - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    AUI+ (N3-1) - GND1 (N3-17) Y - W-B Sound signal (input) Audio system is playing A waveform synchronized with sounds is output.
    AUO+ (N3-2) - GND1 (N3-17) BR - W-B Sound signal (output) Audio system is playing A waveform synchronized with sounds is output.
    SPD (N3-5) - GND1 (N3-17) SB - W-B Speed signal from combination meter See "Vehicle Sensors" Mode (See DISPLAY CHECK MODE  ) -
    +B (N3-9) - GND1 (N3-17) L - W-B Battery Always 10 to 14 V
    AUI- (N3-10) - GND1 (N3-17) LG - W-B Sound signal (input) Audio system is playing A waveform synchronized with sounds is output.
    AUO- (N3-11) - GND1 (N3-17) R-Y - W-B Sound signal (output) Audio system is playing A waveform synchronized with sounds is output.
    VOI+ (N3-12) - VOI- (N3-13) R - G Telephone voice signal (bluetooth) Multi-display is receiving the other caller's voice signals via Bluetooth. A waveform synchronized with sounds is output.
    REV (N3-14) - GND1 (N3-17) R - W-B Reverse signal from combination meter See "Vehicle Sensors" Mode (See DISPLAY CHECK MODE  ) -
    MUT2 (N3-15) - GND1 (N3-17) V - W-B Mute signal Audio system is playing --> Changing Above 3.5 V --> Below 1 V
    GND1 (N3-17) - Body ground W-B - Body ground Ground Always Below 1 V
    ACC (N3-18) - GND1 (N3-17) P - W-B Accessory (ON) Turn ignition switch OFF --> ACC or ON Below 1 V --> 10 to 14 V
    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    MIC+ (N6-3) - GND1 (N3-17) BR - W-B Microphone voice signal See "microphone check" (See DISPLAY CHECK MODE  ) -
    MIC- (N6-5) - GND1 (N3-17) Y - W-B Microphone voice signal See "microphone check" (See DISPLAY CHECK MODE  ) -
    SNSE (N6-7) - Body ground W-B - Body ground Microphone connection detection signal Always Below 1 V
  3. NETWORK GATEWAY ECU: 
    Fig 3: Identifying Network Gateway ECU Terminals
    G04092903Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NETWORK GATEWAY ECU TERMINALS VOLTAGE SPECIFICATION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    IG (G3-2) - GND (G3-14) Y - W-B Ignition (ON) Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    MPD1 (G3-4) L BEAN signal See "DIAGNOSIS SYSTEM " -
    GTX+ (G3-5) - GND (G3-14) R - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    CG (G3-7) - Body ground W-B - Body ground Ground Always Below 1 V
    BATT (G3-8) - GND (G3-14) O - W-B Battery Always 10 to 14 V
    ACC (G3-9) - GND (G3-14) V - W-B Accessory (ON) Turn ignition switch OFF --> ACC or ON Below 1 V --> 10 to 14 V
    MPD2 (G3-11) GR BEAN signal See "DIAGNOSIS SYSTEM " -
    GTX- (G3-12) - GND (G3-14) B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V
    GND (G3-14) - Body ground W-B - Body ground Ground Always Below 1 V

    HINT:

    When trouble occurs in the network gateway ECU, the following symptoms are also confirmed simultaneously.

    • "Outside temperature" is not indicated on the multi-display.
    • "Vehicle information" is not indicated on the multi-display.
    • Unable to operate the air conditioner system.
  4. RADIO RECEIVER (See  TERMINALS OF ECU  ) 
  5. STEREO COMPONENT AMPLIFIER (See  TERMINALS OF ECU  ) 
  6. TELEVISION CAMERA ECU (See  TERMINALS OF ECU  ) 
  7. MULTI-DISPLAY CONTROLLER (See  TERMINALS OF ECU  ) 
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