NAVIGATION SYSTEM TERMINALS OF ECU


  1. MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    A0159RVE38
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    F77-1 (CANH) B CAN communication signal - -
    F77-2 (CANL) W CAN communication signal - -
    F77-7 (TX1+) W AVC-LAN communication signal - -
    F77-8 (TX1-) L AVC-LAN communication signal - -
    F77-10 (VMTF) - F77-12 (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
    F77-12 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    F77-13 (ILL-) - F77-12 (GND1) W - W-B Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → Pulse generation
    F77-14 (ILL+) - F77-12 (GND1) G - W-B Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → 11 to 14 V
    F77-15 (IG) - F77-12 (GND1) G - W-B Power source (IG) Engine switch on (IG) 11 to 14 V
    Engine switch off Below 1 V
    F77-16 (ACC1) - F77-12 (GND1) GR - W-B Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    F77-17 (+B1) - F77-12 (GND1) R - W-B Power source Always 11 to 14 V
    F77-18 (V+) - F77-19 (V-) R - W Rear television camera image signal Engine switch on (IG), reverse (R) selected, camera lens is not covered, displaying an image Pulse generation (Refer to waveform 2)
    Engine switch on (IG), reverse (R) selected, camera lens is covered, blacking out screen Pulse generation (Refer to waveform 3)
    F77-19 (V-) - F77-12 (GND1) W - W-B Ground Always Below 1 V
    F77-27 (MIN+) - F77-12 (GND1) B - W-B Microphone voice signal

    See "Microphone & Voice Recognition Check" in Operation Check Click here

    		-
    F77-28 (SGND) - F77-12 (GND1) Shield - W-B Shield ground Always Below 1 V
    F77-29 (MACC) - F77-12 (GND1) W - W-B Telephone microphone assembly power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    F77-30 (SW1) - F77-32 (SWG) L - W Steering pad switch signal Steering pad switch not operated 4.44 to 5.43 V
    Seek+ switch pushed 0.45 to 0.65 V
    Seek- switch pushed 1.19 to 1.49 V
    Vol+ switch pushed 2.09 to 2.54 V
    Vol- switch pushed 3.2 to 3.88 V
    F77-31 (SW2) - F77-32 (SWG) P - W Steering pad switch signal Steering pad switch not operated 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
    F77-32 (SWG) - Body ground W - Body ground Steering pad switch signal Always Below 1 V
    F77-35 (UIND) R UART communication signal - -
    F77-36 (UPSW) P UART communication signal - -
    F77-39 (CA+) - F77-12 (GND1) B - W-B Television camera power supply Engine switch on (IG), reverse (R) selected 5.5 to 7.05 V
    F77-40 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    F77-45 (TX3+) B AVC-LAN communication signal - -
    F77-46 (TX3-) W AVC-LAN communication signal - -
    F77-48 (MIN-) - Body ground R - Body ground Microphone voice signal

    See "Microphone & Voice Recognition Check" in Operation Check Click here

    		-
    F77-49 (SNS2) - F77-12 (GND1) GR - W-B Microphone connection detection signal Always Below 1 V
    F77-55 (PKB) - F77-12 (GND1) Y - W-B Parking brake switch signal

    See "Vehicle Signal Check Mode" in Operation Check Click here

    		-
    F77-56 (SPD) - F77-12 (GND1) V - W-B Speed signal from combination meter assembly

    See "Vehicle Signal Check Mode" in Operation Check Click here

    		-
    F77-57 (REV) - F77-12 (GND1) L - W-B Receiver signal

    See "Vehicle Signal Check Mode" in Operation Check Click here

    		-
    F84-1 (WUO) - F77-12 (GND1) W - W-B MOST communication signal Engine switch on (ACC) 4.5 V or higher
    Engine switch off Below 1 V
    F84-2 (MI+) B MOST communication signal - -
    F84-3 (MI-) B MOST communication signal - -
    F84-4 (SLDI) - F77-12 (GND1) Shield - W-B Shield ground Always Below 1 V
    F84-5 (MO+) B MOST communication signal - -
    F84-6 (MO-) B MOST communication signal - -
    F84-7 (SLDO) - F77-12 (GND1) Shield - W-B Shield ground Always Below 1 V
    F86-1 (USV1) # Power source - -
    F86-2 (US1-) # Data signal - -
    F86-3 (US1+) # Data signal - -
    F86-4 (UGD1) # Ground - -
    F86-5 (UESS) Shield Shield ground - -
    F78-1 (NTSO) - F77-12 (GND1)*2 B - W-B Display signal RSE playing A waveform synchronized with sound is output.
    F78-2 (NTSG) - F77-12 (GND1)*2 W - W-B Display signal ground Always Below 1 V
    F78-3 (SLD2) - F77-12 (GND1)*2 Shield - W-B Shield ground Always Below 1 V
    F78-4 (VMTR) - F77-12 (GND1)*2 G - W-B Mute signal RSE playing → Source chanyed 4 V or higher → Below 0.7 V → 4 V or higher
    F78-5 (AGND) - F77-12 (GND1) Shield - Body ground Shield ground Always Below 1 V
    F78-6 (VV+) - F77-12 (GND1)*2 B - W-B Display signal DVD is playing A waveform synchronized with display signal is output. (Refer to waveform 1)
    F78-7 (VAR+) - F78-15 (VA-) W - R Sound signal (Right)

    • AUX audio device playing (When stereo jack adapter used)*1

    • Rear audio device playing (When headphone terminal used)*2

    		 A waveform synchronized with sound is output.
    F78-8 (VAL+) - F78-15 (VA-) B - R Sound signal (Left)

    • AUX audio device playing (When stereo jack adapter used)*1

    • Rear audio device playing (When headphone terminal used)*2

    		 A waveform synchronized with sound is output.
    F78-13 (SG) - Body ground*2 Shield - Body ground Shield ground Always Below 1 V
    F78-14 (VV-) - F77-12 (GND1)*2 W - W-B Ground Always Below 1 V
    F78-15 (VA-) - F77-12 (GND1) R - W-B Sound signal ground Always Below 1 V
    F78-16 (ADPG) - F77-12 (GND1) R - W-B External device connector detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V

    • *1: w/o Rear Seat Entertainment System

    • *2: w/ Rear Seat Entertainment System


    1. A015E4BE42
      Text in Illustration
      *a Synchronization Signal
      *b Video Waveform

      Reference (Oscilloscope waveform):


      1. Waveform 1

        Item Content
        Measurement Terminal F78-6 (VV+) - F77-12 (GND1)
        Measurement Setting 200 mV/DIV., 10 μs/DIV.
        Condition DVD is playing

        Tech Tips

        The video waveform changes according to the image input from the multi-media module receiver assembly to the multi-display assembly, but the synchronization signal does not change.

    2. A01560UE20
      Text in Illustration
      *a Waveform 1 (camera lens is not covered, displaying an image)
      *b Waveform 2 (camera lens is covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):


      1. Waveform 2 (camera lens is not covered, displaying an image)

        Item Content
        Measurement terminal F77-18 (V+) - F77-19 (V-)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Engine switch on (IG), reverse (R) selected, camera lens is not covered, displaying an image

        Tech Tips

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

      2. Waveform 3 (camera lens is covered, blacking out the screen)

        Item Content
        Measurement terminal F77-18 (V+) - F77-19 (V-)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Engine switch on (IG), reverse (R) selected, camera lens is covered, blacking out screen

        Tech Tips

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

  2. MULTI-DISPLAY ASSEMBLY

    A015AH7E13
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    F79-2 (ILL) - F79-13 (GND1) G - BR Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → 11 to 14 V
    F79-3 (UPSW) P UART communication signal - -
    F79-4 (UIND) R UART communication signal - -
    F79-7 (TX+) B AVC-LAN communication signal - -
    F79-11 (VMTI) - F79-13 (GND1) V - BR Visual mute signal When image on display switches 3.5 V or higher → Below 1 V → 3.5 V or higher
    F79-12 (+B2) - F79-13 (GND1) R - BR Power source Always 11 to 14 V
    F79-13 (GND1) - Body ground BR - Body ground Ground Always Below 1 Ω
    F79-14 (ILL-) - F79-13 (GND1) W - BR Illumination signal Engine switch on (IG), light control switch off → tail or head position Below 1 V → Pulse generation
    F79-19 (TX-) W AVC-LAN communication signal - -
    F79-23 (IG) - F79-13 (GND1) G - BR Power source (IG) Engine switch on (IG) 11 to 14 V
    Engine switch off Below 1 V
    F79-24 (ACC) - F79-13 (GND1) GR - BR Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V

  3. STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

  4. TELEVISION DISPLAY ASSEMBLY Click here