AUDIO AND VISUAL SYSTEM(for 10.3 Inch Display) TERMINALS OF ECU


  1. B008IH9C01
    *A w/ DAB Function - -
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I152-1 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    I152-2 (GND2) - Body ground B - Body ground Ground Always Below 1 Ω
    I152-3 (+B) - I152-1 (GND1) R - W-B Power source (+B) Always 11 to 14 V
    I152-4 (+B1) - I152-1 (GND1) B - W-B Power source (+B) Always

    11 to 14 V*1

    10.5 to 16 V*2
    I152-5 (TX1+) B AVC-LAN communication signal - -
    I152-6 (TX1-) P AVC-LAN communication signal - -
    I152-10 (AGND) - I152-1 (GND1) Shielded - W-B Shield ground Always Below 1 Ω
    I152-11 (VAL+) - I152-13 (VA-) B - R Sound signal (Left) External device system playing (when No. 1 stereo jack adapter assembly used) A waveform synchronized with sound signals is output
    I152-12 (VAR+) - I152-13 (VA-) W - R Sound signal (Right) External device system playing (when No. 1 stereo jack adapter assembly used) A waveform synchronized with sound signals is output
    I152-13 (VA-) - I152-1 (GND1) R - W-B Sound signal ground Always Below 1 Ω
    I152-14 (ADPG) - I152-13 (VA-) L - R External device connection detection signal External device connected 1.3 to 1.8 V
    External device not connected 2.2 to 3.3 V
    I152-15 (ACC1) - I152-1 (GND1) GR - W-B Power source (ACC) Engine switch on (ACC)

    11 to 14 V*1

    10.5 to 16 V*2
    Engine switch off Below 1 V
    I152-16 (ACC) - I152-1 (GND1) Y - W-B Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    I152-21 (SW1) - I152-24 (SWG) P - BR Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Seek+ switch pushed 0.27 to 0.35 V
    Seek- switch pushed 0.86 to 1.03 V
    Vol+ switch pushed 1.51 to 1.79 V
    Vol- switch pushed 2.22 to 2.66 V
    I152-22 (SW2) - I152-24 (SWG) R - BR Steering pad switch signal No switch pushed 2.97 to 3.56 V
    MODE switch pushed 0.27 to 0.35 V
    On hook switch pushed 0.86 to 1.03 V
    Off hook switch pushed 1.51 to 1.79 V
    Voice switch pushed 2.22 to 2.66 V
    I152-24 (SWG) - Body ground BR - Body ground Steering pad switch signal Always Below 1 Ω
    I152-27 (SPD) - I152-1 (GND1) W - W-B Vehicle speed signal

    See "Vehicle Signal Check Mode" in Operation Check

    Click here

    		-
    I154-7 (SUP) - I152-1 (GND1) B - W-B Start up signal 20 seconds elapse after turning the engine switch on (ACC) 11 to 14 V
    I154-19 (RST)*3 Y - - -
    I154-22 (SI+) - I152-1 (GND1) B - W-B Voice signal Voice guidance sounding A waveform synchronized with sound is output
    I154-23 (SI-) - I152-1 (GND1) W - W-B Voice signal Voice guidance sounding A waveform synchronized with sound is output
    I154-24 (SGND) - I152-1 (GND1) Shielded - W-B Shield ground Always Below 1 Ω
    I154-25 (MCO+) - I154-26 (MCO-) B - W Microphone voice signal

    See "Check Microphone (DCU)" in Operation Check

    Click here

    		-
    I154-26 (MCO-) - I152-1 (GND1) W - W-B Microphone voice signal

    See "Check Microphone (DCU)" in Operation Check

    Click here

    		-
    I154-28 (REV2) - I152-1 (GND1) R - W-B Reverse signal Engine running, shift position not in R → in R 2 V or less → 11 to 14 V
    I153-1 (VMTF) - I152-1 (GND1) V - W-B Visual mute signal Engine switch on (ACC) Screen display changing 3.5 V or higher → Below 1 V → 3.5 V or higher
    I153-5 (CNH1) L Local bus communication signal - -
    I153-6 (CNL1) W Local bus communication signal - -
    I153-13 (CANH) B CAN communication signal - -
    I153-14 (CANL) W CAN communication signal - -
    I153-15 (ILL+) - I152-1 (GND1) L - W-B Illumination signal Engine switch on (IG), Light control switch in tail or head position Below 1 V → 11 to 14 V
    I153-16 (ILL-) - I152-1 (GND1) V - W-B Illumination signal Engine switch on (IG), light control switch off → tail or head position (Light intensity is not max or min.) Below 1 V → Pulse generation
    I153-19 (IG) - I152-1 (GND1) P - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    I153-21 (MIN+) - I152-1 (GND1) W - W-B Microphone voice signal

    See "Check Microphone" in Operation Check

    Click here

    		-
    I153-22 (MIN-) - I152-1 (GND1) R - W-B Microphone voice signal

    See "Check Microphone" in Operation Check

    Click here

    		-
    I153-23 (MACC) - I152-1 (GND1) B - W-B Telephone microphone assembly power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    I153-24 (SGND) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    I153-25 (SNS2) - I152-1 (GND1) P - W-B Microphone connection detection signal Always Below 1 V
    I102-1 (WUO) W MOST communication signal Engine switch on (ACC) 4.5 V or higher
    Engine switch off Below 1 V
    I102-2 (MI+) B MOST communication signal - -
    I102-3 (MI-) B MOST communication signal - -
    I102-4 (SLDI) - I152-1 (GND1) Shielded - W-B Shield ground Always Below 1 Ω
    I102-5 (MO+) B MOST communication signal - -
    I102-6 (MO-) B MOST communication signal - -
    I102-7 (SLDO) - I152-1 (GND1) Shielded - W-B Shield ground Always Below 1 Ω
    I169-1 (GVI-) # Video signal (Digital) - -
    I169-2 (GVI+) # Video signal (Digital) - -
    I169-3 (GVG1) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    I170-1 (USV1) # Power source - -
    I170-2 (US1-) # Data signal - -
    I170-3 (US1+) # Data signal - -
    I170-4 (UGD1) # Ground - -
    I170-5 (USG1) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    z16-1 (GV2-) # Video signal (Digital) - -
    z16-2 (GV2+) # Video signal (Digital) - -
    z16-3 (GVG2) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    z16-4 (US4+) # USB communication line - -
    z16-5 (US4-) # USB communication line - -
    z16-6 (UGD4) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    RA-5 - I152-1 (GND1) # - W-B Power source of antenna

    Engine switch on (ACC)

    Radio switch on and AM or FM selected

    		 11 to 14 V

    *1: w/o Stop and Start System

    *2: w/ Stop and Start System

    *3: It is connected, but not used

    #: There is no wire color information

    RADIO RECEIVER ASSEMBLY

  2. NAVIGATION ECU

    B008IJLN01
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I160-6 (VOI+) - I160-23 (GND) B - W-B Voice signal Voice guidance sounding A waveform synchronized with sound is output
    I160-7 (VOI-) - I160-23 (GND) W - W-B Voice signal Voice guidance sounding A waveform synchronized with sound is output
    I160-8 (SLD1) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    I160-9 (SPD) - I160-23 (GND) V - W-B Vehicle speed signal

    See "Check GPS and Vehicle Sensors" in Operation Check

    Click here

    		-
    I160-10 (+B) - I160-23 (GND)

    Y - W-B*1

    R - W-B*2

    		 Power source (+B) Always

    11 to 14 V*1

    10.5 to 16 V*2
    I160-13 (MIC+) - I160-23 (GND) B - W-B Microphone voice signal

    See "Microphone Check (MEU)" in Operation Check

    Click here

    		-
    I160-14 (MIC-) - Body ground W - Body ground Microphone voice signal

    See "Microphone Check (MEU)" in Operation Check

    Click here

    		-
    I160-19 (REV2) - I160-23(GND) R - W-B Reverse signal Engine running, shift position not in R → in R 2 V or less → 11 to 14 V
    I160-21 (SUP) - I160-23 (GND) B - W-B Power source (ACC) 20 seconds elapse after turning the engine switch on (ACC) 11 to 14 V
    I160-22 (RST)*3 Y - - -
    I160-23 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    z17-1 (GVO-) # Video signal (Digital) - -
    z17-2 (GVO+) # Video signal (Digital) - -
    z17-3 (GVG1) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    z17-4 (US4+) # USB communication line - -
    z17-5 (US4-) # USB communication line - -
    z17-6 (UGD4) - Body ground Shielded - Body ground Shield ground Always Below 1 Ω
    I190-1 (GPS) # GPS signal - -

    *1: w/o Stop and Start System

    *2: w/ Stop and Start System

    *3: It is connected, but not used

  3. STEREO COMPONENT AMPLIFIER ASSEMBLY

    B008JJYE10
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    P22-1 (+B) - Body ground*1 R - Body ground Power source (+B) Always

    11 to 14 V*2

    10.5 to 16 V*3
    P22-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    P22-4 (WFL+) - P22-3 (GND) B - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    P22-5 (WFR+) - P22-3 (GND) W - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    P22-6 (WF1+) - P22-3 (GND) B - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    P22-7 (CTR+) - P22-3 (GND) P - W-B Sound signal (Front Center) Audio system playing A waveform synchronized with sound signals is output
    P22-8 (RL+) - P22-3 (GND) R - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    P22-9 (RR+) - P22-3 (GND) B - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    P22-10 (SL+) - P22-3 (GND)*1 LG - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    P22-11 (SR+) - P22-3 (GND)*1 R - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    P22-12 (FL+) - P22-3 (GND) P - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    P22-13 (FR+) - P22-3 (GND) P - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    P22-16 (+B2) - P22-3 (GND) B - W-B Power source (+B) Always 11 to 14 V
    P22-17 (SPD) - P22-3 (GND) V - W-B Vehicle speed signal

    Engine switch on (IG)

    Wheel being rotated

    		 Pulse generation
    P22-18 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
    P22-19 (WFL-) - P22-3 (GND) Y - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    P22-20 (WFR-) - P22-3 (GND) R - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    P22-21 (WF1-) - P22-3 (GND) G - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    P22-22 (CTR-) - P22-3 (GND) R - W-B Sound signal (Front Center) Audio system playing A waveform synchronized with sound signals is output
    P22-23 (RL-) - P22-3 (GND) W - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    P22-24 (RR-) - P22-3 (GND) G - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    P22-25 (SL-) - P22-3 (GND)*1 L - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    P22-26 (SR-) - P22-3 (GND)*1 P - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    P22-27 (FL-) - P22-3 (GND) V - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    P22-28 (FR-) - P22-3 (GND) R - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    P29-2 (MI+) B MOST communication signal - -
    P29-3 (MI-) B MOST communication signal - -
    P29-4 (SLDI) Shielded Shield ground - -
    P29-5 (MO+) B MOST communication signal - -
    P29-6 (MO-) B MOST communication signal - -
    P29-7 (SLDO) Shielded Shield ground - -
    P29-8 (WUI) W MOST communication wake-up signal - -

    *1: for 14 Speakers

    *2: w/o Stop and Start System

    *3: w/ Stop and Start System

    #: There is no wire color information

  4. MULTI-DISPLAY ASSEMBLY

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I42-1 (CSW+) - I42-13 (GND1)*1 P - W-B Camera image change signal (GVIF) Engine running, shift position not in R → in R 3.5 V or higher → Below 1 V
    I42-2 (ILL) - I42-13 (GND1) LG - W-B Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → 11 to 14 V
    I42-3 (REV) - I42-13(GND1)*2 R - W-B Reverse signal Engine running, shift position not in R → in R 2 V or less → 11 to 14 V
    I42-7 (TX+) B AVC-LAN communication signal - -
    I42-8 (V+) - I42-9 (V-)*3 W - R Video signal

    Engine running

    Shift position in R

    Camera lens not covered, displaying image

    Pulse generation

    (Refer to waveform 1)

    Engine running

    Shift position in R

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    I42-9 (V-) - Body ground*3 R - Body ground Video signal ground Always Below 1 Ω
    I42-10 (CA+) - I42-21 (CGND)*3 B - G Power source Engine switch on (ACC) 5.5 to 7.05 V
    I42-11 (VMTI) - I42-13 (GND1) V - W-B Visual mute signal When image on display switches 3.5 V or higher → Below 1 V → 3.5 V or higher
    I42-12 (B) - I42-13 (GND1)

    BE - W-B*5

    L - W-B*6

    		 Power source (+B) Always

    11 to 14 V*5

    10.5 to 16 V*6
    I42-13 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    I42-14 (CSWA) - I42-13(GND1)*4 V - W-B Camera image change signal

    Engine running

    Lexus parking assist-sensor image not being displayed → Lexus parking assist-sensor image being displayed

    		 3.5 V or higher → Below 1 V
    I42-19 (TX-) P AVC-LAN communication signal - -
    I42-20 (CSLD) - Body ground*3 Shielded - Body ground Shield ground Always Below 1 Ω
    I42-21 (CGND) - Body ground*3 G - Body ground Camera ground Always Below 1 Ω
    I42-24 (ACC) - I42-13 (GND1) Y - W-B Power source (ACC) Engine switch on (ACC)

    11 to 14 V*5

    10.5 to 16 V*6
    Engine switch off Below 1 Ω
    I171-1 (GV+) # Video signal (Digital) - -
    I171-2 (GV-) # Video signal (Digital) - -
    I171-3 (GVG) Shielded Shield ground - -
    I173-1 (GVI+)*1 # Video signal (Digital) - -
    I173-2 (GVI-)*1 # Video signal (Digital) - -
    I173-3 (GVG1)*1 Shielded Shield ground - -

    *1: w/ Panoramic View Monitor System

    *2: w/ Parking Assist Monitor System and w/o Lexus Parking Assist-sensor System

    *3: w/ Parking Assist Monitor System

    *4: w/ Parking Assist Monitor System and w/ Lexus Parking Assist-sensor System

    *5: w/o Stop and Start System

    *6: w/ Stop and Start System

    #: There is no wire color information


    1. B008I1JC04
      *a Waveform 1 (camera lens not covered, displaying image)
      *b Waveform 2 (camera lens covered, blacking out screen)
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):


      1. Waveform 1 (camera lens is not covered, displaying an image)

        Item Content
        Measurement terminal I42-8 (V+) - I42-9 (V-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine running, shift position in R, camera lens not covered, displaying image

        Tech Tips


        • The video waveform changes according to the image sent by the rear television camera assembly.

        • The video waveform is constantly output when the engine switch is on (ACC).

      2. Waveform 2 (camera lens is covered, blacking out the screen)

        Item Content
        Measurement terminal I42-8 (V+) - I42-9 (V-)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine running, shift position in R, camera lens covered, blacking out screen

        Tech Tips


        • The video waveform changes according to the image sent by the rear television camera assembly.

        • The video waveform is constantly output when the engine switch is on (ACC).

  5. REMOTE OPERATION CONTROLLER ASSEMBLY (REMOTE TOUCH)

    B008GWGE05
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I71-1 (+B) - I71-10 (GND)

    W - LA*1

    GR - LA*2

    		 Power source (+B) Always

    11 to 14 V*1

    10.5 to 16 V*2
    I71-6 (ACC) - I71-10 (GND)

    LG - LA*1

    W - LA*2

    		 Power source (ACC) Engine switch on (ACC)

    11 to 14 V*1

    10.5 to 16 V*2
    Engine switch off Below 1 V
    I71-8 (MO-) W Local bus communication signal - -
    I71-9 (MO+) L Local bus communication signal - -
    I71-2 (ILL+) - I71-10 (GND) SB - LA Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → 11 to 14 V
    I71-10 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω
    I71-5 (ILL-) - I71-10 (GND) L - LA Illumination signal Engine switch on (IG), light control switch off → tail or head position (Light intensity is not max or min.) Below 1 V → Pulse generation

    *1: w/o Stop and Start System

    *2: w/ Stop and Start System

  6. AIR CONDITIONING CONTROL ASSEMBLY (CLOCK)

    Click here