NAVIGATION SYSTEM TERMINALS OF ECU

Tech Tips

Check from the rear of the connector while it is connected to the components.


  1. MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    A01G844E20
    Text in Illustration
    *A for LHD *B for RHD
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H97-1 (CANH) BE CAN communication signal - -
    H97-2 (CANL) W CAN communication signal - -
    H97-3 (CNH1) W Local bus communication signal - -
    H97-4 (CNL1) V Local bus communication signal - -
    H97-10 (VMTF) - H97-12 (GND1) L - W-B Visual mute signal

    Engine switch on (ACC)

    Screen display changes

    3.5 V or higher

    → Below 1 V

    → 3.5 V or higher

    H97-12 (GND1) - Body ground W-B - Body ground Ground Always Below 1 V
    H97-13 (ILL-) - H97-12 (GND1) GR - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    H97-14 (ILL+) - H97-12 (GND1) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position 11 to 14 V
    H97-15 (IG) - H97-12 (GND1) V - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    H97-16 (ACC1) - H97-12 (GND1) Y - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H97-17 (+B1) - H97-12 (GND1) R - W-B Power source (+B) Always 11 to 14 V
    H97-18 (V+) - H97-12 (GND1) W - W-B Video signal

    Engine switch on (IG)

    Shift lever in R

    Camera lens not covered, displaying an image

    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)
    H97-19 (V-) - H97-12 (GND1) R - W-B Ground Always Below 1 V
    H97-27 (MIN+) - H97-12 (GND1) W - W-B Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    -
    H97-28 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H97-29 (MACC) - H97-12 (GND1)*2 R - W-B Microphone power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    H97-30 (SW1) - H97-32 (SWG) L - Y 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
    Volume+ switch pushed 1.51 to 1.79 V
    Volume- switch pushed 2.22 to 2.66 V
    H97-31 (SW2) - H97-32 (SWG) R - Y 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
    Voice return switch pushed 0.86 to 1.03 V
    H97-32 (SWG) - Body ground Y - Body ground Steering pad switch signal Always Below 1 V
    H97-39 (CA+) - H97-12 (GND1) B - W-B Television camera power supply Engine switch on (ACC) 5.5 to 7.05 V
    H97-40 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H97-45 (TX3+) P AVC-LAN communication signal - -
    H97-46 (TX3-) V AVC-LAN communication signal - -
    H97-48 (MIN-) - Body ground B - Body ground Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    -
    H97-49 (SNS2) - H97-12 (GND1) V - W-B Microphone connection detection signal Always Below 1 V
    H97-55 (PKB) - H97-12 (GND1) G - W-B Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    -
    H97-56 (SPD) - H97-12 (GND1) V - W-B Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    -
    H98-5 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H98-6 (VV+) - H97-12 (GND1) R - W-B Video signal

    External device system playing

    (when stereo jack used)

    A waveform synchronized with video signals is output
    H98-7 (VAR+) - H98-15 (VA-) B - R Sound signal (Right)

    External device system playing

    (when stereo jack used)

    A waveform synchronized with sound signals is output
    H98-8 (VAL+) - H98-15 (VA-) W - R Sound signal (Left)

    External device system playing

    (when stereo jack used)

    A waveform synchronized with sound signals is output
    H98-13 (SG) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H98-14 (VV-) - H97-12 (GND1) G - W-B Video signal ground Always Below 1 V
    H98-15 (VA-) - H97-12 (GND1) R - W-B Ground Always Below 1 V
    H98-16 (ADPG) - H97-12 (GND1) G - W-B External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    H156-1 (WUO) W MOST communication wake-up signal - -
    H156-2 (MI+) B MOST communication signal - -
    H156-3 (MI-) B MOST communication signal - -
    H156-4 (SLDI) Shield Shield - -
    H156-5 (MO+) B MOST communication signal - -
    H156-6 (MO-) B MOST communication signal - -
    H156-7 (SLDO) Shield Shield - -
    H158-1-1 (USB (USB-))*1 B USB communication line - -
    H158-1-2 (USB (USB+))*1 B USB communication line - -
    H158-1-3 (USB (USBS)) - Body ground*1 B - Body ground Shield ground Always Below 1 V
    H158-2 (USBG) - Body ground*1 W - Body ground Ground Always Below 1 V
    H158-3 (VOT+) - H97-12 (GND1)*1 W - W-B Sent voice signal Calling while using operator service A waveform synchronized with sent voice signals is output
    H158-4 (USBV) - H97-12 (GND1)*1 W - W-B Telematics transceiver power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4.75 to 5.25 V
    H158-5 (VOT-) - H97-12 (GND1)*1 R - W-B Sent voice signal Calling while using operator service A waveform synchronized with sent voice signals is output
    H158-6 (VOR-) - H97-12 (GND1)*1 B - W-B Receive voice signal Receiving a call while using operator service A waveform synchronized with receive voice signals is output
    H158-7 (VOR+) - H97-12 (GND1)*1 G - W-B Receive voice signal Receiving a call while using operator service A waveform synchronized with receive voice signals is output
    H188-7 (GND2) - Body ground Y - Body ground Ground Always Below 1 V
    H188-11 (ACC) - H97-12 (GND1) V - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H188-12 (+B) - H97-12 (GND1) P - W-B Power source (+B) Always 11 to 14 V

    H164-1 (USV1)*3

    H172-1 (USV1)*4

    - Power source - -

    H164-2 (US1-)*3

    H172-2 (US1-)*4

    - Data signal - -

    H164-3 (US1+)*3

    H172-3 (US1+)*4

    - Data signal - -

    H164-4 (USD1)*3

    H172-4 (USD1)*4

    - Ground - -

    H164-5 (USG1)*3

    H172-5 (USG1)*4

    - Shield ground - -
    H177-1 (GVIF) B Video signal (Digital) - -
    RA-5 (ANT+) - H97-12 (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/ Manual (SOS) Switch

    • *2: w/o Manual (SOS) Switch

    • *3: for LHD

    • *4: for RHD


    1. Reference (Oscilloscope waveform):


      1. A01G987E45
        Text in Illustration
        *a Waveform 1 (camera lens not covered, displaying an image)
        *b Synchronization Signal
        *c Video Waveform

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

        Item Content
        Measurement terminal H97-18 (V+) - H97-12 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine switch on (IG), shift lever in R

        Tech Tips


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

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

      2. A01G8LGE02
        Text in Illustration
        *a Waveform 2 (camera lens covered, blacking out the screen)
        *b Synchronization Signal
        *c Video Waveform

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

        Item Content
        Measurement terminal H97-18 (V+) - H97-12 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Engine switch on (IG), shift lever in R

        Tech Tips


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

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

  2. STEREO COMPONENT AMPLIFIER ASSEMBLY

    A01G51HE13
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H99-1 (+B) - H99-3 (GND) Y - BR Power source (+B) Always 11 to 14 V
    H99-2 (TMUT) - Body ground*1 B - Body ground Mute signal Audio system playing Above 3.5 V
    Emergency call mode Below 1 V
    H99-3 (GND) - Body ground BR - Body ground Ground Always Below 1 V
    H99-4 (WFL+) - H99-3 (GND) R - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    H99-5 (WFR+) - H99-3 (GND) B - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    H99-6 (WF1+) - H99-3 (GND) L - BR Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    H99-7 (CTR+) - H99-3 (GND) B - BR Sound signal (Front Center) Audio system playing A waveform synchronized with sound signals is output
    H99-10 (SL+) - H99-3 (GND)*2 B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    H99-11 (SR+) - H99-3 (GND)*2 R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    H99-12 (FL+) - H99-3 (GND) R - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    H99-13 (FR+) - H99-3 (GND) B - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    H99-14 (RL+) - H99-3 (GND) R - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    H99-15 (RR+) - H99-3 (GND) V - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    H99-16 (+B2) - H99-3 (GND) L - BR Power source (+B) Always 11 to 14 V
    H99-17 (SPD) - H99-3 (GND) V - BR Vehicle speed signal

    Engine switch on (IG)

    Wheel being rotated

    Pulse generation
    H99-18 (GND2) - Body ground BR - Body ground Ground Always Below 1 V
    H99-19 (WFL-) - H99-3 (GND) W - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    H99-20 (WFR-) - H99-3 (GND) Y - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    H99-21 (WF1-) - H99-3 (GND) LG - BR Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    H99-22 (CTR-) - H99-3 (GND) Y - BR Sound signal (Front Center) Audio system playing A waveform synchronized with sound signals is output
    H99-25 (SL-) - H99-3 (GND)*2 Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    H99-26 (SR-) - H99-3 (GND)*2 W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    H99-27 (FL-) - H99-3 (GND) W - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sound signals is output
    H99-28 (FR-) - H99-3 (GND) Y - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sound signals is output
    H99-29 (RL-) - H99-3 (GND) W - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sound signals is output
    H99-30 (RR-) - H99-3 (GND) P - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sound signals is output
    H157-2 (MI+) B MOST communication signal - -
    H157-3 (MI-) B MOST communication signal - -
    H157-4 (SLDI) Shield Shield ground - -
    H157-5 (MO+) B MOST communication signal - -
    H157-6 (MO-) B MOST communication signal - -
    H157-7 (SLDO) Shield Shield ground - -
    H157-8 (WUI) W MOST communication wake-up signal - -

    • *1: w/ Manual (SOS) Switch

    • *2: for 15 Speakers

  3. MULTI-DISPLAY ASSEMBLY

    A01G89KE23
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H93-2 (ILL) - H93-13 (GND1) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position 11 to 14 V
    H93-6 (TX1+) W AVC-LAN communication signal - -
    H93-7 (TX+) P AVC-LAN communication signal - -
    H93-11 (VMTI) - H93-13 (GND1) L - W-B Visual mute signal When image on display switches

    3.5 V or higher

    → Below 1 V

    → 3.5 V or higher

    H93-12 (+B2) - H93-13 (GND1) R- W-B Power source (+B) Always 11 to 14 V
    H93-13 (GND1) - Body ground W-B - Body ground Ground Always Below 1 V
    H93-18 (TX1-) V AVC-LAN communication signal - -
    H93-19 (TX-) V AVC-LAN communication signal - -
    H93-24 (ACC) - H93-13 (GND1) Y- W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H161-1 (GVIF) B Video signal (Digital) - -
  4. REMOTE TOUCH

    A01G6L9E13
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H95-1 (+B) - H95-15 (GND) R - W-B Power source (+B) Always 11 to 14 V
    H95-2 (ACC) - H95-15 (GND) Y - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H95-4 (MO-) V Local bus communication signal - -
    H95-5 (MO+) W Local bus communication signal - -
    H95-9 (ILL+) - H95-15 (GND) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position 11 to 14 V
    H95-15 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    H95-16 (ILL-) - H95-15 (GND) GR - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
  5. REAR CONTROL SWITCH (w/ Rear Control Switch)

    A01G5OOE15
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    h2-1 (+B) - h2-16 (GND) R - W-B Power source (+B) Always 11 to 14 V
    h2-5 (TX-) W AVC-LAN communication signal - -
    h2-6 (ACC) - h2-16 (GND) P - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    h2-7 (IG+) - h2-16 (GND) SB - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    h2-15 (TX+) L AVC-LAN communication signal - -
    h2-16 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
  6. TELEMATICS TRANSCEIVER (w/ Manual (SOS) Switch) Click here