AUDIO AND VISUAL SYSTEM TERMINALS OF ECU

Tech Tips

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


  1. RADIO RECEIVER ASSEMBLY

    A01G4B9E19
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H180-11 (CA+) - H180-23 (CGND) B - W-B Television camera power supply Engine switch on (ACC) 5.5 to 7.05 V
    H180-12 (V+) - H180-23 (CGND) R - 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)
    H180-18 (TX2+) B AVC-LAN communication signal - -
    H180-19 (TX2-) W AVC-LAN communication signal - -
    H180-23 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H180-24 (V-) - H180-23 (CGND) W - W-B Ground Always Below 1 V
    H182-1 (FR+) - H182-7 (GND1) G - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H182-2 (FL+) - H182-7 (GND1) W - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H182-3 (ACC1) - H182-7 (GND1) B - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H182-4 (+B1) - H182-7 (GND1) LG - W-B Power source (+B) Always 11 to 14 V
    H182-5 (FR-) - H182-7 (GND1) R - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H182-6 (FL-) - H182-7 (GND1) B - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H182-7 (GND1) - Body ground W-B - Body ground Ground Always Below 1 V
    H182-10 (ILL+) - H182-7 (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
    H183-2 (RL+) - H182-7 (GND1) G - W-B Sound signal (rear left) Audio system playing A waveform synchronized with sound signals is output
    H183-5 (ILL-) - H182-7 (GND1) B - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    H183-6 (RL-) - H182-7 (GND1) R - W-B Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    H179-1 (IG) - H182-7 (GND1) V - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    H179-4 (MACC) - H182-7 (GND1) R - W-B Microphone power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    H179-5 (MIN+) - H182-7 (GND1) Y - W-B Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    H179-6 (SNS2) - H182-7 (GND1) V - W-B Microphone connection detection signal Always Below 1 V
    H179-7 (TX1+) R AVC-LAN communication signal - -
    H179-8 (TX1-) BR AVC-LAN communication signal - -
    H179-9 (CANH) R CAN communication signal - -
    H179-10 (CANL) W CAN communication signal - -
    H179-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H179-12 (SG) - H182-7 (GND1) Shield - W-B External device connection detection signal External device connected Below 1 V
    H179-13 (VV+) - H182-7 (GND1) B - W-B Video signal External device playing (When stereo jack used) A waveform synchronized with video signals is output
    H179-14 (VV-) - H182-7 (GND1) W - W-B Video signal External device playing (When stereo jack used) A waveform synchronized with video signals is output
    H179-15 (PKB) - H182-7 (GND1) R - W-B Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    H179-16 (MUT1) - H182-7 (GND1) B - W-B Mute signal Engine switch on (ACC) Audio system playing 2.0 V or higher
    Audio system changing modes Below 1 V
    H179-17 (SPD) - H182-7 (GND1) V - W-B Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    H179-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H179-19 (MIN-) - H182-7 (GND1) L - W-B Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    H179-21 (SW1) - H179-23 (SWG) GR - W 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
    H179-22 (SW2) - H179-23 (SWG) G - W 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
    H179-23 (SWG) - H182-7 (GND1) W - W-B Steering pad switch ground Always Below 1 V
    H179-25 (ADPG) - H182-7 (GND1) BR - W-B External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    H179-26 (VAR+) - H179-27 (VA-) R - B Sound signal (right) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    H179-27 (VA-) - H182-7 (GND1) B - W-B Ground Always Below 1 V
    H179-28 (VAL+) - H179-27 (VA-) W - B Sound signal (left) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    H181-1 (VMTF) - H182-7 (GND1) GR - W-B Visual mute signal Engine switch on (ACC) Screen display changes

    2.0 V or higher

    → Below 1 V

    → 2.0 V or higher
    H181-11 (TX4+) P AVC-LAN communication signal - -
    H181-12 (TX4-) G AVC-LAN communication signal - -
    H184-3 (ACC2) - H162-7 (GND1) P - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H184-4 (+B2) - H162-7 (GND1) G - W-B Power source (+B) Always 11 to 14 V
    H184-8 (GND2) - Body ground LG - Body ground Ground Always Below 1 V

    H155-1 (USV1)*1

    H171-1 (USV1)*2

    		 - Power source - -

    H155-2 (US1-)*1

    H171-2 (US1-)*2

    		 - Data signal - -

    H155-3 (US1+)*1

    H171-3 (US1+)*2

    		 - Data signal - -

    H155-4 (UGD1)*1

    H171-4 (UGD1)*2

    		 - Ground - -

    H155-5 (USG1)*1

    H171-5 (USG1)*2

    		 - Shield ground - -
    H160-1 (GVIF) B Video signal (Digital) - -
    RA-5 (ANT+) - H182-7 (GND1) - - W-B Power source of antenna

    Engine switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: for LHD

    • *2: 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 not covered, displaying an image)

        Item Content
        Measurement terminal H180-12 (V+) - H180-23 (CGND)
        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 output 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 covered, blacking out the screen)

        Item Content
        Measurement terminal H180-12 (V+) - H180-23 (CGND)
        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 output when the Engine switch is on (ACC).

  2. STEREO COMPONENT AMPLIFIER ASSEMBLY

    A01G9NPE34
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H88-1 (+B) - H88-3 (GND) R - W-B Power source (+B) Always 11 to 14 V
    H88-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    H88-4 (WFL+) - H88-3 (GND) P - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H88-5 (WFR+) - H88-3 (GND) LG - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H88-6 (WF1+) - H88-3 (GND) V - W-B Sound signal (woofer) Audio system playing A waveform synchronized with sound signals is output
    H88-7 (CTR+) - H88-3 (GND) BR - W-B Sound signal (front center) Audio system playing A waveform synchronized with sound signals is output
    H88-12 (FL+) - H88-3 (GND) R - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H88-13 (FR+) - H88-3 (GND) G - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H88-14 (RL+) - H88-3 (GND) G - W-B Sound signal (rear left) Audio system playing A waveform synchronized with sound signals is output
    H88-15 (RR+) - H88-3 (GND) SB - W-B Sound signal (rear right) Audio system playing A waveform synchronized with sound signals is output
    H88-16 (+B2) - H88-3 (GND) B - W-B Power source (+B) Always 11 to 14 V
    H88-18 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V
    H88-19 (WFL-) - H88-3 (GND) V - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H88-20 (WFR-) - H88-3 (GND) L - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H88-21 (WF1-) - H88-3 (GND) Y - W-B Sound signal (woofer) Audio system playing A waveform synchronized with sound signals is output
    H88-22 (CTR-) - H88-3 (GND) GR - W-B Sound signal (front center) Audio system playing A waveform synchronized with sound signals is output
    H88-27 (FL-) - H88-3 (GND) W - W-B Sound signal (front left) Audio system playing A waveform synchronized with sound signals is output
    H88-28 (FR-) - H88-3 (GND) BR - W-B Sound signal (front right) Audio system playing A waveform synchronized with sound signals is output
    H88-29 (RL-) - H88-3 (GND) BR - W-B Sound signal (rear left) Audio system playing A waveform synchronized with sound signals is output
    H88-30 (RR-) - H88-3 (GND) BE - W-B Sound signal (rear right) Audio system playing A waveform synchronized with sound signals is output
    H87-1 (MUTE) - H88-3 (GND) B - W-B Mute signal

    Engine switch on (ACC)

    Audio system playing

    		 2.0 V or higher
    Audio system changing modes Below 1 V
    H87-2 (L-) - H88-3 (GND) B - W-B Sound signal (left) Audio system playing A waveform synchronized with sound signals is output
    H87-3 (L+) - H88-3 (GND) W - W-B Sound signal (left) Audio system playing A waveform synchronized with sound signals is output
    H87-4 (R-) - H88-3 (GND) R - W-B Sound signal (right) Audio system playing A waveform synchronized with sound signals is output
    H87-5 (R+) - H88-3 (GND) G - W-B Sound signal (right) Audio system playing A waveform synchronized with sound signals is output
    H87-6 (SLD) - Body ground Shield - Body ground Shield ground Always Below 1 V
    H87-7 (TX-) BR AVC-LAN communication signal - -
    H87-8 (TX+) R AVC-LAN communication signal - -
    H87-11 (SPD) - H88-3 (GND) V - W-B Vehicle speed signal Engine switch on (IG) Wheel being rotated Pulse generation
    H87-12 (ACC) - H88-3 (GND) R - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H87-14 (II1-) - H88-3 (GND) R - W-B Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    H87-15 (II1+) - H88-3 (GND) G - W-B Voice signal Voice guidance sounding A waveform synchronized with voice signals is output
    H87-18 (SLD1) - Body ground Shield - Body ground Shield ground Always Below 1 V

  3. MULTI-DISPLAY ASSEMBLY

    A01G89KE28
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H93-2 (ILL) - H93-13 (GND1) SB - 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+) P AVC-LAN communication signal - -
    H93-7 (TX+) P AVC-LAN communication signal - -
    H93-11 (VMTI) - H93-13 (GND1) GR - W-B Visual mute signal

    Engine switch on (ACC)

    Screen display changes

    2.0 V or higher

    → Below 1 V

    → 2.0 V or higher
    H93-12 (B) - H93-13 (GND1) P - 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-) G AVC-LAN communication signal - -
    H93-19 (TX-) G AVC-LAN communication signal - -
    H93-24 (ACC) - H93-13 (GND1) R - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    H187-1 (GVIF) B Video signal (Digital) - -

  4. REMOTE OPERATION BOARD

    A01G6WIE06
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    H95-1 (ILL+) - H95-4 (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
    H95-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
    H95-8 (ILL-) - H95-4 (GND) BR - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    H95-10 (TX+) B AVC-LAN communication signal - -
    H95-11 (TX-) W AVC-LAN communication signal - -
    H95-14 (ACC) - H95-4 (GND) R - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V

  5. REAR CONTROL SWITCH (w/ Rear Control Switch)

    A01G5OOE12
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    j2-1 (+B) - j2-16 (GND) R - W-B Power source (+B) Always 11 to 14 V
    j2-5 (TX-) Y AVC-LAN communication signal - -
    j2-6 (ACC) - j2-16 (GND) GR - W-B Power source (ACC) Engine switch off Below 1 V
    Engine switch on (ACC) 11 to 14 V
    j2-7 (IG+) - j2-16 (GND) V - W-B Power source (IG) Engine switch off Below 1 V
    Engine switch on (IG) 11 to 14 V
    j2-15 (TX+) GR AVC-LAN communication signal - -
    j2-16 (GND) - Body ground W-B - Body ground Ground Always Below 1 V