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Terminals Of Ecu

  1. MULTI-DISPLAY ASSY: 
    Fig 1: Identifying Terminals Of ECU Terminal Connector
    G03000426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specification
    GND (M3-3) - Body ground W-B - Body ground Ground Always Below 1 V
    MCI+ (M3-4) - GND (M4-3) R - W-B Microphone voice signal See "MICROPHONE CHECK " -
    MCI- (M3-5) - Body ground G - Body ground Microphone voice signal See "MICROPHONE CHECK " -
    MACC (M3-6) - GND (M4-3) W - W-B Microphone Accessory Turn ignition switch OFF --> ON Below 1 V --> 5 V
    TELSW+ (M3-9) - GND (M4-3) P - W-B Steering pad switch (telephone) signal Steering pad switch (telephone) is push -
    TELSW- (M3-10) - Body ground BR - Body ground Steering pad switch ground Always Below 1 V
    SLD (M3-17) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    MCO+ (M3-18) - GND (M4-3) G - W-B Microphone voice signal See "MICROPHONE CHECK " -
    MCO- (M3-19) - GND (M4-3) R - W-B Microphone voice signal See "MICROPHONE CHECK " -
    SLD (M3-20) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    IVO+ (M3-21) - GND (M4-3) Y - W-B Telephone voice signal (bluetooth) See "MICROPHONE CHECK " -
    IVO- (M3-22) - GND (M4-3) BR - W-B Telephone voice signal (bluetooth) See "MICROPHONE CHECK " -
    VR (M3-23) - GND (M4-3) Y - W-B Video return signal Turn ignition switch OFF Below 1 V
    R (M3-24) - GND (M4-3) R - W-B Display signal (red) Navigation display is on -
    G (M3-25) - GND (M4-3) W - W-B Display signal (green) Navigation display is on -
    B (M3-26) - GND (M4-3) B - W-B Display signal (blue) Navigation display is on -
    SYNC (M3-27) - GND (M4-3) G - W-B Display signal (synchronize) Navigation display is on -
    VG (M3-28) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    ILL+ (M4-1) - GND (M4-3) G - W-B Illumination (rheostat) signal Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    ILL- (M4-2) - Body ground W-G - Body ground Illumination (rheostat) signal Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    GND (M4-3) - Body ground W-B - Body ground Ground Always Below 1 V
    TC (M4-7) - GND (M4-3) P-B - W-B Diagnosis ON signal Turn ignition switch to the ON position 9 to 14 V
    IG (M4-10) - GND (M4-3) LG-R - W-B Ignition (ON) Turn ignition switch OFF --> ON Below 1 V --> 10 to 14 V
    ACC (M4-11) - GND (M4-3) GR - W-B Accessory (ON) Turn ignition switch OFF --> ACC or ON Below 1 V --> 10 to 14 V
    +B1 (M4-12) - GND (M4-3) R-G - W-B Battery Always 10 to 14 V
    PKB (M4-16) - GND (M4-3) LG - W-B Parking brake signal Turn parking brake switch ON --> OFF Below 1 V --> 10 to 14 V
    TX2+ (M4-18) - GND (M4-3) G - W-B AVC-LAN communication signal Turn ignition switch to ON 2 to 3V
    TX2- (M4-19) - GND (M4-3) R - W-B AVC-LAN communication signal Turn ignition switch to ON 2 to 3V
    SPD (M4-25) - GND (M4-3) V-W - W-B Speed signal from combination meter See "VEHICLE SIGNAL CHECK MODE " -
  2. NAVIGATION ECU: 
    Fig 2: Navigation ECU Terminal Connector
    G03000427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specification
    AUI+ (N4-1) - GND1 (N4-17) LG - W-B Sound signal (input) Audio system is playing -
    AUO+ (N4-2) - GND1 (N4-17) P - W-B Sound signal (output) Audio system is playing -
    SLD1 (N4-3) - Body ground Shielded - Body ground Shielded ground Always Below 1.0 V
    SPD (N4-5) - GND1 (N4-17) V - W-B Speed signal from combination meter See "Vehicle Signal Check Mode" (see DISPLAY CHECK MODE (VEHICLE SIGNAL CHECK)  ) -
    +B (N4-9) - GND1 (N4-17) L - W-B Battery Always 10 to 14 V
    AUI- (N4-10) - GND1 (N4-17) L - W-B Sound signal (input) Audio system is playing -
    AUO- (N4-11) - GND1 (N4-17) V - W-B Sound signal (output) Audio system is playing -
    VOI+ (N4-12) - SLD1 (N4-3) Y - Shielded Telephone voice signal (bluetooth) See "MICROPHONE CHECK " -
    VOI- (N4-13) - SLD1 (N4-3) BR -Shielded Telephone voice signal (bluetooth) See "MICROPHONE CHECK " -
    REV (N4-14) - GND1 (N4-17) L - W-B Reverse signal from combination meter See "Vehicle Signal Check Mode" (see DISPLAY CHECK MODE (VEHICLE SIGNAL CHECK)  ) -
    MUT2 (N4-15) - GND1 (N4-17) SB - W-B Mute signal Audio system is playing --> Changing Above 3.5 V --> Below 1 V
    GND1 (N4-17) - Body ground W-B - Body ground Ground Always Below 1 V
    ACC (N4-18) - GND1 (N4-17) GR - W-B Accessory (ON) Turn ignition switch OFF --> ACC or ON Below 1 V --> 10 to 14 V
    VR (N5-1) - GND1 (N4-17) R - W-B Video return signal Turn ignition switch OFF Below 1 V
    R (N5-2) - GND1 (N4-17) Y - W-B Display signal (red) Navigation display is on -
    B (N5-3) - GND1 (N4-17) G - W-B Display signal (blue) Navigation display is on -
    TX+ (N5-5) - GND1 (N4-17) B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    VG (N5-6) - Body ground Shielded - Body ground Shielded ground Always Below 1 V
    G (N5-7) - GND1 (N4-17) W - W-B Display signal (green) Navigation display is on -
    SYNC (N5-8) - GND1 (N4-17) B - W-B Display signal (synchronize) Navigation display is on -
    TX- (N5-10) - GND1 (N4-17) W - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    MIC+ (N6-3) - GND1 (N4-17) G - W-B Microphone voice signal See "MICROPHONE CHECK " -
    MIC- (N6-5) - GND1 (N4-17) R - W-B Microphone voice signal See "MICROPHONE CHECK " -
    SNSE (N6-7) - Body ground W-B - Body ground Ground Always Below 1 V
    TX1+ (N7-1) - GND1 (N4-17) L - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TX1- (N7-4) - GND1 (N4-17) LG - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
  3. RADIO RECEIVER ASSY: 
    Fig 3: Radio Receiver Terminal ECU Connector
    G03000428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    TX+ (R2-5) - GND (R2-20) B - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TX- (R2-15) - GND (R2-20) W- BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GND (R2-20) - Body ground BR - Body ground Ground Always Below 1 V
    TXM+ (R3-9) - GND (R2-20) Y - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TXM- (R3-10) - GND (R2-20) B - BR AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
  4. STEREO COMPONENT AMPLIFIER ASSY: 
    Fig 4: Stereo Component Amplifier Terminal Connector
    G03000429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    TX-(1), MTX-(2) (S29-7) - GND (S30-1 6) LG - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TX+(1), MTX+(2) (S29-8) - GND (S30-1 6) L - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TXD-(1), RTX-(2) (S29-19) - GND (S30-16) R(3) - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TXD+(1), RTX+(2) (S29-20) - GND (S30-16) G(3) - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GND (S30-16) - Body ground W-B - Body ground Ground Always Below 1 Ω
    (1) Mark Levinson Models
    (2) Standard Models Except
    (3) w/ Rear Audio Controller
  5. STEREO COMPONENT TUNER: 
    Fig 5: Stereo Component Tuner Terminal Connector
    G03000430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    ATX+ (S31-8) - GND (S31-25) G - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    MTX+ (S3 1-9) - GND (S31-25) Y - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    UTX+ (S31-10) - GND (S31-25) L - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    UTX- (S31-22) - GND (S31-25) LG - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    ATX- (S31-20) - GND (S31-25) R - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    MTX- (S31-21) - GND (S31-25) B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GND (S31-25) - Body ground W-B - Body ground Ground Always Below 1 Ω
  6. AUDIO AND REAR A/C CONTROL SW: 
    Fig 6: Audio And Rear A/C Control Terminal ECU Connector
    G03000431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    TX+ (A35-3) - GND (A35-4) O - B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GND (A35-4) - Body ground B - Body ground Ground Always Below 1 Ω
    TX- (A35-8) - GND (A35-4) B-Y - B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
  7. TELEVISION CAMERA ECU: 
    Fig 7: Television Camera ECU Terminal Connector
    G03000432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    GND1 (T25-8) - Body ground W-B - Body ground Ground Always Below 1 Ω
    TX+ (T24-29) - GND (T25-8) B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    TX- (T24-30) - GND (T25-8) W - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
  8. GATEWAY ECU: 
    Fig 8: Gateway ECU Terminal Connector
    G03000433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL CONNECTOR CHART

    Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification
    GTX+ (G3-6) - GND (G3-24) B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GTX- (G3-21) - GND (G3-24) W - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3V
    GND (G3-24) - Body ground W-B - Body ground Ground Always Below 1 Ω
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