LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2012 >> IS 250C Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio / Video System (W/O Navigation) (W/ Multi-Display) (Diagnostics - Introduction) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display) >> Terminals Of Ecu >> Terminals Of Ecu

Terminals Of Ecu

  1. DISPLAY AND NAVIGATION MODULE DISPLAY 
    Fig 1: Navigation ECU Connector (Display And Navigation Module Display) Terminal Identification
    GTY268328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No.
    (Symbol)    		 Wiring Color Terminal Description Condition Specified Condition
    J50-1 (+B1) - J50-10 (GND1) Y - W-B Power source (Back-up) Always 11 to 14 V
    J50-2 (ACC) - J50-10 (GND1) BE - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    J50-3 (IG) - J50-10 (GND1) B - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    J50-4 (MACC) - J50-10 (GND1) W - W-B Microphone amplifier power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4.5 to 5.5 V
    J50-5 (MIN+) - J50-10 (GND1) R - W-B Microphone voice signal See "Microphone & Voice Recognition Check" in Operation Check. Refer to OPERATION CHECK  -
    J50-6 (MIN-) - Body ground B - Body ground Microphone voice signal See "Microphone & Voice Recognition Check" in Operation Check. Refer to OPERATION CHECK  -
    J50-7 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    J50-9 (TC) - J50-10 (GND1) V - W-B Diagnosis signal Engine switch on (IG) 9 to 14 V
    J50-11 (ILL-) - J50-10 (GND1) W - W-B Illumination signal Light control switch off Below 1 V
    Light control switch tail or head position (Light intensity is not max. or min.) Pulse generation
    J50-12 (ILL+) - J50-10 (GND1) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch tail or head position 11 to 14 V
    J50-16 (REV) - J50-10 (GND1) GR - W-B Reverse signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK  -
    J50-17 (PKB) - J50-10 (GND1) Y - W-B Parking brake signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK  -
    J50-18 (SPD) - J50-10 (GND1) P - W-B Vehicle speed signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK  -
    J50-20 (SNS2) - J50-10 (GND1) V - W-B Voice recognition and microphone connection detection signal Always Below 1 V
    J50-21 (CANH) SB CAN communication signal - -
    J50-22 (CANL) W CAN communication signal - -
    J50-23 (SWG) - Body ground GR - Body ground Steering pad switch signal Always Below 1 V
    J50-24 (SW2) - J50-23 (SWG) L - GR Steering pad switch signal No switch pushed 4.44 to 5.43 V
    MODE switch pushed 0.45 to 0.65 V
    On Hook switch pushed 1.19 to 1.49 V
    Off Hook switch pushed 2.09 to 2.54 V
    Voice switch pushed 3.2 to 3.88 V
    J50-25 (SW1) - J50-23 (SWG) SB - GR Steering pad switch signal No switch pushed 4.44 to 5.43 V
    Seek+ switch pushed 0.45 to 0.65 V
    Seek- switch pushed 1.19 to 1.49 V
    Volume+ switch pushed 2.09 to 2.54 V
    Volume- switch pushed 3.2 to 3.88 V
    J52-5 (V+) - J50-10 (GND1)*1 R - W-B Television camera image signal Engine switch on (IG)
    Shift lever in R
    Under normal conditions    		 Pulse generation
    (Refer to waveform 1)
    Engine switch on (IG)
    Shift lever in R
    Camera lens covered, blacking out screen    		 Pulse generation
    (Refer to waveform 2)
    J52-6 (CA+) - J50-10 (GND1)*1 B - W-B Television camera power supply Engine switch on (IG)
    Shift lever in R    		 5.5 to 7 V
    J52-9 (VV+) - J50-10 (GND1)*2 B - W-B Display signal DVD is playing A waveform synchronized with display signals is output.
    (Refer to waveform 3)
    J52-12 (TX2+) SB AVC-LAN communication signal - -
    J52-13 (TX2-) G AVC-LAN communication signal - -
    J52-16 (V-) - J50-10 (GND1)*1 W - W-B Ground Always Below 1 V
    J52-17 (CGND) - Body ground*1 Shield - Body ground Shield ground Always Below 1 V
    J52-20 (VV-) - J50-10 (GND1)*2 W - W-B Ground Always Below 1 V
    J51-1 (MI+) W MOST communication signal - -
    J51-2 (SLDI) - J50-10 (GND1) BR - W-B Shield ground Always Below 1 V
    J51-3 (MO+) W MOST communication signal - -
    J51-5 (MI-) B MOST communication signal - -
    J51-6 (SLDO) - J50-10 (GND1) BR - W-B Shield ground Always Below 1 V
    J51-7 (MO-) B MOST communication signal - -
    J51-8 (WUO) - J50-10 (GND1) B - W-B MOST communication wake-up signal Engine switch on (ACC) 4.5 V or higher
    Engine switch off Below 1 V
    J63-1 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    J63-3 (VAR+) - J63-7 (VA-) W - B Sound signal (Right) USB audio device playing (When stereo jack adapter used) A waveform synchronized with sounds is output.
    J63-4 (VAL+) - J63-7 (VA-) R - B Sound signal (Left) USB audio device playing (When stereo jack adapter used) A waveform synchronized with sounds is output.
    J63-7 (VA-) - J50-10 (GND1) B - W-B Sound signal ground Always Below 1 V
    J61-6 (SEUC) - J50-10 (GND1) LG - W-B Security indicator signal Security indicator operation 11 to 14 V
    J62-7 (GND) - Body ground W - Body ground Ground Always Below 1 V
    J62-9 (TXM+) R AVC-LAN communication signal - -
    J62-10 (TXM-) G AVC-LAN communication signal - -
    J62-11 (ACC) - J50-10 (GND1) L - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    J62-12 (+B) - J50-10 (GND1) B - W-B Battery Always 11 to 14 V
    z7-1 (+B2) - J50-10 (GND1) Y - W-B Battery Always 11 to 14 V
    z7-2 (ACC) - J50-10 (GND1) R - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    z7-4 (G) - J50-10 (GND1) B - W-B Ground Always Below 1 V
    • *1: w/ Rear View Monitor System
    • *2: w/ DVD Changer Model
    1. Reference (Oscilloscope waveform):
      Fig 2: Waveform 1 & 2
      GTY247467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Waveform 1 (under normal conditions)
        Item Content
        Measurement terminal J52-5 (V+) - J50-10 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Engine switch on (IG), shift lever in R

        HINT: 

        The video waveform changes according to the image from the television camera assembly.

      2. Waveform 2 (camera lens is covered, blacking out the screen)
        Item Content
        Measurement terminal J52-5 (V+) - J50-10 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Engine switch on (IG), shift lever in R

        HINT: 

        The video waveform changes according to the image that the television camera assembly projects.

      3. Waveform 3
        Fig 3: Waveform 3
        GTY286482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Measurement Terminal J52-9 (VV+) - J50-10 (GND1)
        Measurement Setting 200 mV/DIV., 10 μs/DIV.
        Condition DVD is playing
        NOTE:

        The video waveform changes according to the image input from the radio receiver assembly to the display and navigation module display, but the synchronization signal does not change.

        TEXT IN ILLUSTRATION

        *1 Waveform 1 (under normal conditions)
        *2 Waveform 2 (camera lens is covered, blacking out the screen)
        *3 Synchronization Signal
        *4 Video Waveform
        *5 Synchronization Signal
        *6 Video Waveform
  2. NAVIGATION MODULE BOARD 
    Fig 4: Navigation Module Board Connector Terminal Identification
    GTY395326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No.
    (Symbol)    		 Wiring Color Terminal Description Condition Specified Condition
    z9-1 (+B) - z9-5 (GND1) Y - B Battery Always 11 to 14 V
    z9-3 (ACC1) - z9-5 (GND1) R - B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    z9-5 (GND1) - Body ground B - Body ground Ground Always Below 1 V
  3. NETWORK GATEWAY ECU 
    Fig 5: Network Gateway ECU Connector Terminal Identification
    GTY393452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No.
    (Symbol)    		 Wiring Color Terminal Description Condition Specified Condition
    J76-1 (IG) - J76-24 (GND) B - W-B Power source (IG) Engine switch on (IG) 11 to 14 V
    Engine switch off Below 1 V
    J76-2 (ACC) - J76-24 (GND) BE - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    J76-3 (MPD1) GR MPX communication signal - -
    J76-4 (MPI1) BR MPX communication signal - -
    J76-6 (GTX+) SB AVC-LAN communication signal - -
    J76-10 (BATT) - J76-24 (GND) LG - W-B Battery Always 11 to 14 V
    J76-12 (MPD2) GR MPX communication signal - -
    J76-13 (MPI2) BR MPX communication signal - -
    J76-17 (CA1H) L CAN communication signal - -
    J76-18 (CA1L) W CAN communication signal - -
    J76-21 (GTX-) G AVC-LAN communication signal - -
    J76-24 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
  4. RADIO RECEIVER ASSEMBLY 
    Fig 6: Radio Receiver Assembly Connector Terminal Idetification
    GTY394040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    J65-3 (ILL+) - J65-15 (GND) G - W-B Illumination signal Light control switch off Below 1 V
    J65-3 (ILL+) - J65-15 (GND) G - W-B Illumination signal Light control switch tail or head position 11 to 14 V
    J65-5 (AUXI) - J65-15 (GND) L - W-B External device connection detection signal External device connected Below 1 V
    J65-6 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    J65-7 (SLD) - Body ground Shield - Body ground Shield ground Always Below 1 V
    J65-8 (NTSC) - J65-15 (GND)*1 B - W-B DVD image signal DVD playing A waveform synchronized with display signals is output
    J65-9 (MI+) W MOST communication signal - -
    J65-10 (SLDI) - Body ground BR - Body ground Shield ground Always Below 1 V
    J65-11 (MO+) W MOST communication signal - -
    J65-12 (WUI) - J65-15 (GND) B - W-B MOST communication wake up signal Engine switch on (ACC) 4.5 V or higher
    J65-14 (B) - J65-15 (GND) G - W-B Battery Always 11 to 14 V
    J65-15 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    J65-17 (ILL-) - J65-15 (GND) W - W-B Illumination (rheostat) signal Light control switch off Below 1 V
    J65-17 (ILL-) - J65-15 (GND) W - W-B Illumination (rheostat) signal Light control switch tail or head position Pulse generation
    J65-19 (ARI) - J65-15 (GND) R - W-B Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    J65-20 (ALI) - J65-15 (GND) W - W-B Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    J65-21 (ASGN) - J65-15 (GND) B - W-B Shield ground Always Below 1 V
    J65-22 (GND) - J65-15 (GND) W - W-B Shield ground Always Below 1 V
    J65-23 (MI-) B MOST communication signal - -
    J65-24 (SLDI) - Body ground BR - Body ground Shield ground Always Below 1 V
    J65-25 (MO-) B MOST communication signal - -
    J65-26 (WUO) - J65-15 (GND) W - W-B MOST communication wake up signal Engine switch on (ACC) 4.5 V or higher
    RA1-5 (ANT+) - J65-15 (GND) B - W-B Power source of antenna Engine switch on (ACC)
    Radio switch on and AM or FM selected    		 11 to 14 V
    • *1: w/ Front Center Speaker
  5. STEREO COMPONENT AMPLIFIER ASSEMBLY 
    Fig 7: Stereo Component Amplifier Assembly Connector Terminal Identification
    GTY394385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    P27-1 (+B) - P27-2 (GND)*1 R - W-B Battery Always 11 to 14 V
    P27-2 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    P27-3 (+B2) - P27-2 (GND) SB - W-B Battery Always 11 to 14 V
    P27-6 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V
    P29-2 (SPD) - P27-2 (GND) L - W-B Speed signal from combination meter assembly Engine switch on (IG)
    Drive wheels turned slowly    		 Pulse generation
    P29-3 (WUI) - P27-2 (GND) W - W-B MOST communication wake up signal Engine switch on (ACC) 4.5 V or higher
    P29-4 (MI+) W MOST communication signal - -
    P29-5 (SLDI) - Body ground BR - Body ground Shield ground Always Below 1 V
    P29-6 (MO+) W MOST communication signal - -
    P29-10 (MI-) B MOST communication signal - -
    P29-11 (SLDO) - Body ground BR - Body ground Shield ground Always Below 1 V
    P29-12 (MO-) B MOST communication signal - -
    P28-1 (WF1+) - P27-2 (GND)*1 BR - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sounds is output
    P28-2 (WF2+) - P27-2 (GND)*1 LG - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sounds is output
    P28-3 (FL+) - P27-2 (GND)*1 SB - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P28-4 (FR+) - P27-2 (GND)*1 B - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P28-7 (CTR-) - P27-2 (GND)*1 B - W-B Sound signal (Front Center) Audio system playing A waveform synchronized with sounds is output
    P28-8 (CTR+) - P27-2 (GND)*1 Y - W-B Sound signal (Front Center) Audio system playing A waveform synchronized with sounds is output
    P28-9 (FL-) - P27-2 (GND)*1 G - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P28-10 (FR-) - P27-2 (GND)*1 GR - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P28-1 (FL+) - P27-2 (GND)*2 SB - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P28-2 (FR+) - P27-2 (GND)*2 B - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P28-5 (FL-) - P27-2 (GND)*2 G - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P28-6 (FR-) - P27-2 (GND)*2 GR - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P51-3 (WFL+) - P27-2 (GND) W - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P51-4 (RL+) - P27-2 (GND) P - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    P51-5 (RR+) - P27-2 (GND) P - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    P51-8 (WFL-) - P27-2 (GND) R - W-B Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    P51-9 (WFR-) - P27-2 (GND) P - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P51-10 (WFR+) - P27-2 (GND) BR - W-B Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    P51-11 (RL-) - P27-2 (GND) V - W-B Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    P51-12 (RR-) - P27-2 (GND) V - W-B Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    • *1: w/ Front Center Speaker
    • *2: w/o Front Center Speaker
  6. MULTI-MEDIA INTERFACE ECU 
    Fig 8: Multi-Media Interface ECU Connector Terminal Identification
    GTY393135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    J99-1 (USD1) - Body ground Shield - Body ground Shield ground Always Below 1 V
    J99-2 (URO+) - J99-7 (GND) W - W USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    J99-3 (ULO+) - J99-7 (GND) R - W USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    J99-4 (UGD1) - J99-7 (GND) B - W USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    J99-7 (GND) - Body ground W - Body ground Ground Always Below 1 V
    J99-9 (TX1+) R AVC-LAN communication signal - -
    J99-10 (TX1-) G AVC-LAN communication signal - -
    J99-11 (ACC) - J99-7 (GND) L - W Accessory (ON) Engine switch off Below 1 V
    J99-11 (ACC) - J99-7 (GND) L - W Accessory (ON) Engine switch on (ACC) 11 to 14 V
    J99-12 (+B) - J99-7 (GND) B - W Battery Always 11 to 14 V
    J110-1 (UESG) - Body ground - Ground Always Below 1 V
    J110-2 (UDI+) - Data signal USB device or "iPod" connected -
    J110-3 (UDI-) - Data signal USB device or "iPod" connected -
    J110-4 (UPO) - J110-1 (UESG) - Battery Engine switch on (ACC) 5 V
    J110-5 (UESS) - Body ground Shield - Body ground Shield ground Always Below 1 V
scientia non olet · About LEMON Manuals