NAVIGATION SYSTEM TERMINALS OF ECU

Tech Tips

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


  1. NAVIGATION RECEIVER ASSEMBLY

    A01HVFVE03
    for 6 Speakers
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I72-1 (FR+) - I72-7 (GND1) LG - BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I72-2 (FL+) - I72-7 (GND1) P - BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I72-3 (ACC1) - I72-7 (GND1) GR - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    I72-4 (+B1) - I72-7 (GND1) L-Y - BR Power source (+B) Power switch off 11 to 14 V
    I72-5 (FR-) - I72-7 (GND1) L - BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I72-6 (FL-) - I72-7 (GND1) V - BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I72-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V
    I72-10 (ILL+) - I72-7 (GND1) G - BR Illumination signal Light control switch off Below 1 V

    Power switch off

    Light control switch in tail or head position

    		 11 to 14 V
    I73-1 (RR+) - I72-7 (GND1) R - BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I73-2 (RL+) - I72-7 (GND1) B - BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I73-3 (RR-) - I72-7 (GND1) W - BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I73-5 (ILL-) - I72-7 (GND1) W - BR Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    I73-6 (RL-) - I72-7 (GND1) Y - BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I177-11 (CA+) - I72-7 (GND1) B - BR Television camera power supply Power switch on (ACC) 5.5 to 7.05 V
    I177-12 (V+) - I72-7 (GND1) W - BR Video signal

    Power switch on (IG)

    Shift lever in R

    Camera lens not covered, displaying an image

    		 Pulse generation (Refer to waveform 1)

    Power switch on (IG)

    Shift lever in R

    Camera lens covered, blacking out screen

    		 Pulse generation (Refer to waveform 2)
    I177-23 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I177-24 (V-) - I72-7 (GND1) R - BR Ground Always Below 1 V
    I74-1 (IG) - I72-7 (GND1) Y - BR Power source (IG) Power switch off Below 1 V
    Power switch on (IG) 11 to 14 V
    I74-2 (REV) - I72-7 (GND1) L - BR Reverse signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-4 (MACC) - I72-7 (GND1) B - BR Microphone power supply Power switch off Below 1 V
    Power switch on (ACC) 4 to 6 V
    I74-5 (MIN+) - I72-7 (GND1) W - BR Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I74-6 (SNS2) - I72-7 (GND1) LG - BR Microphone connection detection signal Always Below 1 V
    I74-9 (CANH) R CAN communication signal - -
    I74-10 (CANL) W CAN communication signal - -
    I74-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I74-15 (PKB) - I72-7 (GND1) R - BR Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-17 (SPD) - I72-7 (GND1) V - BR Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I74-19 (MIN-) - I72-7 (GND1) R - BR Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I74-21 (SW1) - I74-23 (SWG) B - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Up switch pushed 0.27 to 0.35 V
    Down 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
    I74-22 (SW2) - I74-23 (SWG) Y - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    MODE/HOLD 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
    I74-23 (SWG) - I72-7 (GND1) P - BR Steering pad switch ground Always Below 1 V
    I74-24 (SW3) - I74-23 (SWG) SB - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Enter switch pushed 0.27 to 0.35 V
    Back switch pushed 0.86 to 1.03 V
    Right switch pushed 1.51 to 1.79 V
    Left switch pushed 2.22 to 2.66 V
    I74-25 (ADPG) - I72-7 (GND1) G - BR External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    I74-26 (VAR+) - I74-27 (VA-) B - W Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I74-27 (VA-) - I72-7 (GND1) W - BR Ground Always Below 1 V
    I74-28 (VAL+) - I74-27 (VA-) R - W Sound signal (Left)

    External device system playing

    (when stereo jack used)

    		 A waveform synchronized with sound signals is output
    a1-3 (ACC2) - I72-7 (GND1)*1 Y - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    a1-4 (+B2) - I72-7 (GND1)*1 R - BR Power source (+B) Power switch off 11 to 14 V
    a1-8 (GND2) - Body ground*1 B - Body ground Ground Always Below 1 V
    I141-1 (UPO) - Power source - -
    I141-2 (UDO-) - Data signal - -
    I141-3 (UDO+) - Data signal - -
    I141-4 (UESG) - Ground - -
    I141-5 (USG1) - Shield ground - -
    R1-1 (USV4)*1 - Power source - -
    R1-2 (US4-)*1 - Data signal - -
    R1-3 (US4+)*1 - Data signal - -
    R1-4 (UGD4)*1 - Ground - -
    R1-5 (USG4)*1 - Shield ground - -
    R3-1 (GVIF)*1 - LVDS communication signal - -
    RA-5 (ANT+) - I72-7 (GND1) - - BR Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: w/ SDARS System

    for 10 Speakers
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I72-1 (FR+) - I72-7 (GND1) R- BR Sound signal (Right) Audio system playing A waveform synchronized with sound signals is output
    I72-2 (FL+) - I72-7 (GND1) B - BR Sound signal (Left) Audio system playing A waveform synchronized with sound signals is output
    I72-3 (ACC1) - I72-7 (GND1) GR - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    I72-4 (+B1) - I72-7 (GND1) L-Y - BR Power source (+B) Power switch off 11 to 14 V
    I72-5 (FR-) - I72-7 (GND1) G - BR Sound signal (Right) Audio system playing A waveform synchronized with sound signals is output
    I72-6 (FL-) - I72-7 (GND1) W - BR Sound signal (Left) Audio system playing A waveform synchronized with sound signals is output
    I72-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V
    I72-10 (ILL+) - I72-7 (GND1) G - BR Illumination signal Light control switch off Below 1 V

    Power switch off

    Light control switch in tail or head position

    		 11 to 14 V
    I73-2 (RL+) - I72-7 (GND1) R - BR Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    I73-5 (ILL-) - I72-7 (GND1) W - BR Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    I73-6 (RL-) - I72-7 (GND1) G - BR Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    I177-11 (CA+) - I72-7 (GND1) B - BR Television camera power supply Power switch on (ACC) 5.5 to 7.05 V
    I177-12 (V+) - I72-7 (GND1) W - BR Video signal

    Power switch on (IG)

    Shift lever in R

    Camera lens not covered, displaying an image

    		 Pulse generation (Refer to waveform 1)

    Power switch on (IG)

    Shift lever in R

    Camera lens covered, blacking out screen

    		 Pulse generation (Refer to waveform 2)
    I177-23 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I177-24 (V-) - I72-7 (GND1) R- BR Ground Always Below 1 V
    I74-1 (IG) - I72-7 (GND1) Y - BR Power source (IG) Power switch off Below 1 V
    Power switch on (IG) 11 to 14 V
    I74-2 (REV) - I72-7 (GND1) L - BR Reverse signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-4 (MACC) - I72-7 (GND1)*1 B - BR Microphone power supply Power switch off Below 1 V
    Power switch on (ACC) 4 to 6 V
    I74-5 (MIN+) - I72-7 (GND1)

    W - BR*1

    R - BR*3

    		 Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I74-6 (SNS2) - I72-7 (GND1) LG - BR Microphone connection detection signal Always Below 1 V
    I74-7 (TX1+) GR AVC-LAN communication signal - -
    I74-8 (TX1-) G AVC-LAN communication signal - -
    I74-9 (CANH) R CAN communication signal - -
    I74-10 (CANL) W CAN communication signal - -
    I74-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I74-15 (PKB) - I72-7 (GND1) R - BR Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-16 (MUT1) - I72-7 (GND1) L - BR Mute signal

    Power switch on (ACC)

    Audio system playing

    		 2.0 V or higher
    Audio system changing modes Below 1 V
    I74-17 (SPD) - I72-7 (GND1) V - BR Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I74-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I74-19 (MIN-) - I72-7 (GND1)

    R - BR*1

    G - BR*3

    		 Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I74-21 (SW1) - I74-23 (SWG) B - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Up switch pushed 0.27 to 0.35 V
    Down 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
    I74-22 (SW2) - I74-23 (SWG) Y - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    MODE/HOLD 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
    I74-23 (SWG) - I72-7 (GND1) P - BR Steering pad switch ground Always Below 1 V
    I74-24 (SW3) - I74-23 (SWG) SB - P Steering pad switch signal No switch pushed 2.97 to 3.56 V
    Enter switch pushed 0.27 to 0.35 V
    Back switch pushed 0.86 to 1.03 V
    Right switch pushed 1.51 to 1.79 V
    Left switch pushed 2.22 to 2.66 V
    I74-25 (ADPG) - I72-7 (GND1) G - BR External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    I74-26 (VAR+) - I74-27 (VA-) B - W Sound signal (Right)

    External device system playing

    (when stereo jack used)

    		 A waveform synchronized with sound signals is output
    I74-27 (VA-) - I72-7 (GND1) W - BR Ground Always Below 1 V
    I74-28 (VAL+) - I74-27 (VA-) R - W Sound signal (Left)

    External device system playing

    (when stereo jack used)

    		 A waveform synchronized with sound signals is output
    a1-3 (ACC2) - I72-7 (GND1)*2 Y - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    a1-4 (+B2) - I72-7 (GND1)*2 R - BR Power source (+B) Power switch off 11 to 14 V
    a1-8 (GND2) - Body ground*2 B - Body ground Ground Always Below 1 V
    I141-1 (UPO) - Power source - -
    I141-2 (UDO-) - Data signal - -
    I141-3 (UDO+) - Data signal - -
    I141-4 (UESG) - Ground - -
    I141-5 (USG1) - Shield ground - -
    R1-1 (USV4)*2 - Power source - -
    R1-2 (US4-)*2 - Data signal - -
    R1-3 (US4+)*2 - Data signal - -
    R1-4 (UGD4)*2 - Ground - -
    R1-5 (USG4)*2 - Shield ground - -
    R3-1 (GVIF)*2 - LVDS communication signal - -
    RA-5 (ANT+) - I72-7 (GND1) - - BR Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: w/o Manual (SOS) Switch

    • *2: w/ SDARS System

    • *3: w/ Manual (SOS) Switch


    1. Reference (Oscilloscope waveform):


      1. A01HT39E44
        Text in Illustration
        *a Waveform 1 (camera lens not covered, displaying an image)
        *b Synchronization Signal
        *c Video Waveform

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

        Item Content
        Measurement terminal I177-12 (V+) - I72-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (IG), shift lever in R

        Tech Tips


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

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

      2. A01HTIZE01
        Text in Illustration
        *a Waveform 2 (camera lens covered, blacking out the screen)
        *b Synchronization Signal
        *c Video Waveform

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

        Item Content
        Measurement terminal I177-12 (V+) - I72-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (IG), shift lever in R

        Tech Tips


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

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

  2. STEREO COMPONENT TUNER ASSEMBLY (w/ SDARS System)

    A01HSM5E05
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    a2-3 (ACC2) - a2-8 (GND2) Y - B Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    a2-4 (+B2) - a2-8 (GND2) R - B Power source (+B) Power switch off 11 to 14 V
    a2-8 (GND2) - Body ground B - Body ground Ground Always Below 1 V
    R2-1 (USV4) - Power source - -
    R2-2 (US4-) - Data signal - -
    R2-3 (US4+) - Data signal - -
    R2-4 (UGD4) - Ground - -
    R2-5 (USG4) - Shield ground - -
    R4-1 (GVIF) - LVDS communication signal - -

  3. STEREO COMPONENT AMPLIFIER ASSEMBLY (for 10 Speakers)

    A01HTVHE31
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    I68-1 (+B) - I68-3 (GND) GR - W-B Power source (+B) Power switch off 11 to 14 V
    I68-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    I68-8 (WF1+) - I68-3 (GND) P - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    I68-13 (CTR+) - I68-3 (GND) B - W-B Sound signal (Front center) Audio system playing A waveform synchronized with sound signals is output
    I68-9 (SL+) - I68-3 (GND) B - W-B Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I68-10 (SR+) - I68-3 (GND) R - W-B Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I68-11 (FL+) - I68-3 (GND) P - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I68-12 (TWR+) - I68-3 (GND) LG - W-B Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I68-14 (TWL+) - I68-3 (GND) P - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I68-15 (FR+) - I68-3 (GND)

    Y - W-B*1

    LG - W-B*2

    		 Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I68-23 (WF1-) - I68-3 (GND) Y - W-B Sound signal (Woofer) Audio system playing A waveform synchronized with sound signals is output
    I68-28 (CTR-) - I68-3 (GND) G - W-B Sound signal (Front center) Audio system playing A waveform synchronized with sound signals is output
    I68-24 (SL-) - I68-3 (GND) Y - W-B Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I68-25 (SR-) - I68-3 (GND) W - W-B Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I68-26 (FL-) - I68-3 (GND) V - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I68-27 (TWR-) - I68-3 (GND) L - W-B Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I68-29 (TWL-) - I68-3 (GND) V - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I68-30 (FR-) - I68-3 (GND)

    P - W-B*1

    L - W-B*2

    		 Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I69-1 (MUTE) - I68-3 (GND) L - W-B Mute signal

    Power switch on (ACC)

    Audio system playing

    		 2.0 V or higher
    Audio system changing modes Below 1 V
    I69-2 (L-) - I68-3 (GND) W - W-B Sound signal (Left) Audio system playing A waveform synchronized with sound signals is output
    I69-3 (L+) - I68-3 (GND) B - W-B Sound signal (Left) Audio system playing A waveform synchronized with sound signals is output
    I69-4 (R-) - I68-3 (GND) G - W-B Sound signal (Right) Audio system playing A waveform synchronized with sound signals is output
    I69-5 (R+) - I68-3 (GND) R - W-B Sound signal (Right) Audio system playing A waveform synchronized with sound signals is output
    I69-6 (SLD) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I69-7 (TX-) G AVC-LAN communication signal - -
    I69-8 (TX+) GR AVC-LAN communication signal - -
    I69-11 (SPD) - I68-3 (GND) V - W-B Vehicle speed signal

    Power switch on (IG)

    Wheel being rotated

    		 Pulse generation
    I69-12 (ACC) - I68-3 (GND) GR - W-B Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    I69-14 (II1-) - I68-3 (GND) G - W-B Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    I69-15 (II1+) - I68-3 (GND) R - W-B Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    I69-18 (SLD1) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I69-24 (TMUT) - Body ground*1 R - Body ground Mute signal

    Power switch on (ACC)

    Audio system playing

    		 2.0 V or higher
    Emergency call mode Below 1 V

    • *1: w/ Manual (SOS) Switch

    • *2: w/o Manual (SOS) Switch

  4. DCM (TELEMATICS TRANSCEIVER) (w/ Manual (SOS) Switch) Click here