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Terminals Of Ecu

  1. MULTI-DISPLAY 
    Fig 1: Identifying Terminals Of ECU
    G04050363Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    ECU TERMINAL DESCRIPTION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    +B1 (J50-1)- GND1 (J50-10) Y - W-B Battery Always 10 to 14 V
    ACC (J50-2) - GND1 (J50-10) O - W-B Accessory (ON) Turn engine switch off Below 1 V
    ACC (J50-2) - GND1 (J50-10) O - W-B Accessory (ON) Turn engine switch on (ACC or IG) 10 to 14 V
    IG (J50-3) - GND1 (J50-10) B - W-B Ignition (ON) Turn engine switch off Below 1 V
    IG (J50-3) - GND1 (J50-10) B - W-B Ignition (ON) Turn engine switch on (IG) 10 to 14 V
    TC (J50-7) - GND1 (J50-10) V - W-B Diagnosis ON signal Turn engine switch on (IG) 9 to 14 V
    GND1 (J50-10)-Body ground W-B - Body ground Ground Always Below 1 V
    ILL- (J50-11) - GND1 (J50-10) W - W-B Illumination signal Turn light control switch OFF Below 1 V
    ILL-(J50-11) - GND1 (J50-10) W - W-B Illumination signal Turn light control switch ON 10 to 14 V
    ILL+ (J50-12) - GND1 (J50-10) G - W-B Illumination signal Turn light control switch OFF Below 1 V
    ILL+ (J50-12) - GND1 (J50 - 10) G - W-B Illumination signal Turn light control switch ON 10 to 14 V
    REV (J50-13) - GND1 (J50-10) L - W-B Reverse signal See "Vehicle Signal Check" Mode (See DISPLAY CHECK MODE  ) -
    SPD (J50-14) - GND1 (J50-10) P - W-B Speed signal from combination meter See "Vehicle Signal Check" Mode (See DISPLAY CHECK MODE  ) -
    PKB (J50-23) - GND1 (J50-10) R - W-B Parking brake signal See "Vehicle Signal Check" Mode (See DISPLAY CHECK MODE  ) -
    TX2- (J51-3) - GND1 (J50-10) LG - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    TX2+ (J51-4) - GND1 (J50-10) P - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    TSW- (J51-5) - GND1 (J50-10) W-B - W-B Telephone relation switch signal Always Below 1 V
    MACC (J51-9) - GND1 (J50-10) V - W-B Microphone AMP power supply Turn engine switch off Below 1 V
    MACC (J51-9) - GND1 (J50-10) V - W-B Microphone AMP power supply Turn engine switch on (IG) 5 V
    MIN- (J51-10) - GND1 (J50-10) BR - W-B Microphone voice signal See "Microphone & Voice Recognition Check" (See DISPLAY CHECK MODE  ) -
    MIN+ (J51-11) - GND1 (J50-10) Y - W-B Microphone voice signal See "Microphone & Voice Recognition Check" (See DISPLAY CHECK MODE  ) -
    SGND (J51-12) - GND1 (J50-10) W-B - W-B Signal ground Always Below 1 V
    CA+ (J51-13) - GND1 (J50-10) B - W-B Television camera power supply Turn engine switch on (IG), shift lever in R position Approx. 6 V
    CGND (J51-14) - Body ground W - Body ground Ground Always Below 1 V
    TX3- (J51-17) - GND1 (J50-10) O - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    TX3+ (J51-18) - GND1 (J51-10) SB - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    IVO- (J51-21) - GND1 (J50-10) BR - W-B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    IVO+ (J51-22) - GND1 (J51-10) Y - W-B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    SLD (J51-23) - GND1 (J50-10) Shielded - W-B Shielded ground Always Below 1 V
    V+ (J51-27) - CGND (J51-14) R - W Television camera image signal Turn engine switch on (IG), shift lever in R position Pulse generation (Reference to waveform 1)
    V- (J51-28) - CGND (J51-14) Shielded - W Shielded ground Always Below 1 V
    NTSC (J52-1) - GND1 (J50-10) R - W-B DVD image signal DVD is played on radio receiver Pulse generation (Reference to waveform 2)
    SGD1 (J52-4) - GND1 (J50-10) G - W-B Signal ground Always Below 1 V
    SGND (J52-5) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    TX4- (p1-1) - GND2 (p1-6) W - B-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    TX4+ (p1-2) - GND2 (p1-6) W - R-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    SGND (p1-3) - GND2 (p1-61) Shielded - B Shielded ground Always Below 1 V
    MCO- (p1-4) - GND2 (p1-6) L - B Microphone voice signal See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE  ) -
    MCO+ (p1-5) - GND2 (p1-6) R - B Microphone voice signal See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE  ) -
    GND2 (p1-6) - Body ground B - Body ground Ground Always Below 1 V
    ACC2 (p1-7) - GND2 (p1-6) O - B Accessory (ON) Turn engine switch off Below 1 V
    ACC2 (p1-7) - GND2 (p1-6) O - B Accessory (ON) Turn engine switch on (ACC) 10 to 14 V
    +B (p1-8) - GND2 (p1-6) R - B Battery Always 10 to 14 V
    SI- (p1-10) - GND2 (p1-6) L-B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    SI+ (p1-11) - GND2 (p1-6) R - B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    REV2 (p1-15) - GND2 (p1-6) GR - B Reverse signal See "Vehicle Sensors" Mode (See NAVIGATION CHECK MODE  ) -
    SPD2 (p1-16) - GND2 (p1-6) W - B Speed signal See "Vehicle Sensors" Mode (See NAVIGATION CHECK MODE  ) -
    GVI+ (q1-1) - GND2 (p1-6) - Digital image signal Navigation display is on Pulse generation
    GVI- (q1-2) - GND2 (p1-6) - Digital image signal Navigation display is on Pulse generation
    GVG1 (q1-3) - Body ground - Ground Always Below 1 V
    1. Reference: waveform 1

      HINT:

      • Terminal: V+ - CGND
      • Gauge set: 0.2 V/DIV., 0.2 s/DIV.
      • Condition: Engine switch: IG, shift lever: R position
      Fig 2: GND Reference Waveform 1 Graph
      G04050364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Reference: waveform 2

      HINT:

      • Terminal: NTSC - Body ground
      • Gauge set: 200 mV/DIV., 10 s/DIV.
      • Condition: DVD is played on multi-display
      Fig 3: GND Reference Waveform 2 Graph
      G04050365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. NAVIGATION ECU 
    Fig 4: Identifying Terminals Of Navigation ECU
    G04050366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NAVIGATION ECU TERMINAL DESCRIPTION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    +B (p2-1) - GND1 (p2-15) R - B Battery Always 10 to 14 V
    SPD (p2-4) - GND1 (p2-15) W - B Speed signal See "Vehicle Sensors" Mode (See NAVIGATION CHECK MODE  ) -
    SLD1 (p2-7) - GND1 (p2-15) Shielded - B Shielded ground Always Below 1 V
    VOI- (p2-8) - GND1 (p2-15) L - B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    VOI+ (p2-9) - GND1 (p2-15) R - B Voice guidance signal Voice guidance is provided A waveform synchronized with sounds is output
    ACC (p2-13) - GND1 (p2 - 15) O - B Accessory (ON) Turn engine switch off Below 1 V
    ACC (p2-13) - GND1 (p2-15) O - B Accessory (ON) Turn engine switch on (ACC) 10 to 14 V
    GND1 (p2-15) - Body ground B - Body ground Ground Always Below 1 V
    TX- (p2-18) - GND1 (p2-15) W-B - B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    TX+ (p2-19) - GND1 (p2-15) W-R - B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    REV (p2-20) - GND1 (p2-15) GR - B Reverse signal See "Vehicle Sensors" Mode (See NAVIGATION CHECK MODE  ) -
    MIC+ (p3-3) - GND1 (p2-15) R - B Microphone voice signal See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE  ) -
    MIC- (p3-5) - GND1 (p2-15) L - B Microphone voice signal See "Microphone & Voice Recognition Check" (See NAVIGATION CHECK MODE  ) -
    GVI+ (q1-1) - GND2(p1-6) - Digital image signal Navigation display is on Pulse generation
    GVI - (q1-2) - GND2 (p1-6) - Digital image signal Navigation display is on Pulse generation
    GND2 (q1-3) - Body ground - Ground Always Below 1 V
  3. GATEWAY ECU 
    Fig 5: Identifying Terminals Of Gateway ECU
    G04050367Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    GATEWAY ECU TERMINAL DESCRIPTION

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    IG (J76-1) - GND (J76-24) B - W-B Ignition (ON) Turn engine switch off Below 1 V
    IG (J76-1) - GND(J76-24) B - W-B Ignition (ON) Turn engine switch on (IG) 10 to 14 V
    ACC (J76-2) - GND (J76-24) O - W-B Accessory (ON) Turn engine switch off Below 1 V
    ACC (J76-2) - GND (J76-24) O - W-B Accessory (ON) Turn engine switch on (ACC) 10 to 14 V
    GTX- (J76-21) - GND (J76-24) O - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    GTX+ (J76-6) - GND (J76-24) SB - W-B AVC-LAN communication signal Turn engine switch on (ACC) 2 to 3 V
    BATT (J76-10) - GND (J76-24) LG - W-B Battery Always 10 to 14 V
    GND (J76-24) - Body ground W-B - Body ground Ground Always Below 1 V
  4. RADIO RECEIVER (See  TERMINALS OF ECU  ) 
  5. STEREO COMPONENT AMPLIFIER (See  TERMINALS OF ECU  ) 
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