AUDIO AND VISUAL SYSTEM TERMINALS OF ECU


  1. RADIO AND DISPLAY RECEIVER ASSEMBLY

    A00443XE37
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    L109-1 (FR+) - L109-7 (GND1)

    G - BR*1

    LG - BR*2

    		 Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L109-2 (FL+) - L109-7 (GND1)

    R - BR*1

    P - BR*2

    		 Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L109-3 (ACC1) - L109-7 (GND1) GR - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    L109-4 (+B1) - L109-7 (GND1) SB - BR Power source (+B) Power switch off 11 to 14 V
    L109-5 (FR-) - L109-7 (GND1)

    B - BR*1

    L - BR*2

    		 Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L109-6 (FL-) - L109-7 (GND1)

    W - BR*1

    V - BR*2

    		 Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L109-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V
    L109-10 (ILL+) - L109-7 (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
    L110-1 (RR+) - L109-7 (GND1)*2 R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L110-2 (RL+) - L109-7 (GND1)

    Y - BR*1

    B - BR*2

    Voice signal*1

    Sound signal (Rear Left)*2

    Voice guidance souding*1

    Audio system playing*2

    		 A waveform synchronized with sounds is output
    L110-3 (RR-) - L109-7 (GND1)*2 W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L110-6 (RL-) - L109-7 (GND1)

    BR - BR*1

    Y - BR*2

    Voice signal*1

    Sound signal (Rear Left)*2

    Voice guidance souding*1

    Audio system playing*2

    		 A waveform synchronized with sounds is output
    L107-1 (IG) - L109-7 (GND1) B - BR Power source (IG) Power switch off Below 1 V
    Power switch on (IG) 11 to 14 V
    L107-2 (REV) - L109-7 (GND1) P - BR Reverse signal

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

    		-
    L107-4 (MACC) - L109-7 (GND1) R - BR Microphone power supply Power switch off Below 1 V
    Power switch on (ACC) 4 to 6 V
    L107-5 (MIN+) - L109-7 (GND1) B - BR Microphone voice signal

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

    		-
    L107-6 (SNS2) - L109-7 (GND1) B - BR Microphone connection detection signal Always Below 1 V
    L107-7 (TX1+)*1 G AVC-LAN communication signal - -
    L107-8 (TX1-)*1 R AVC-LAN communication signal - -
    L107-9 (CANH) G CAN communication signal - -
    L107-10 (CANL) W CAN communication signal - -
    L107-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L107-17 (SPD) - L109-7 (GND1) V - BR Vehicle speed signal

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

    		-
    L107-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L107-19 (MIN-) - L109-7 (GND1) W - BR Microphone voice signal

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

    		-
    L107-20 (MUT2) - L109-7 (GND1)*1 B - BR Mute signal Audio system playing Above 3.5 V
    Audio system changing modes Below 1 V
    L107-21 (SW1) - L107-23 (SWG) R - 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
    L107-22 (SW2) - L107-23 (SWG) G - P 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
    L107-23 (SWG) - L109-7 (GND1) P - BR Steering pad switch ground Always Below 1 V
    L107-25 (ADPG) - L109-7 (GND1) W - BR External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    L107-26 (VAR+) - L107-27 (VA-) B - W Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    L107-27 (VA-) - L109-7 (GND1) W - BR Ground Always Below 1 V
    L107-28 (VAL+) - L107-27 (VA-) R - W Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    L108-6 (PKB) - L109-7 (GND1) R - BR Parking brake signal

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

    		-
    L108-7 (CA+) - L109-7 (GND1) W - BR Television camera power supply Within 60 seconds of turning the power switch on (ACC) 5.5 to 7.05 V
    L108-8 (V+) - L109-7 (GND1) R - BR Video signal

    Power switch on (READY)

    Reverse (R) selected

    Camera lens not covered, displaying an image

    Pulse generation

    (Refer to waveform 1)

    Power switch on (READY)

    Reverse (R) selected

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    L108-15 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L108-16 (V-) - L109-7 (GND1) B - BR Ground Always Below 1 V
    L113-1 (UPO) - Power source - -
    L113-2 (UDO-) - Data signal - -
    L113-3 (UDO+) - Data signal - -
    L113-4 (UESG) - Ground - -
    L113-5 (USG1) - Shield ground - -
    RA-5 (ANT+) - L109-7 (GND1) B - BR Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: for 8 Speakers

    • *2: for 6 Speakers


    1. A0041STE20
      Text in Illustration
      *a Waveform 1 (camera lens not covered, displaying an image)
      *b Waveform 2 (camera lens covered, blacking out the screen)
      *c Synchronization Signal
      *d Video Waveform

      Reference (Oscilloscope waveform):


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

        Item Content
        Measurement terminal L108-8 (V+) - L109-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (READY), Reverse (R) selected

        Tech Tips

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

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

        Item Content
        Measurement terminal L108-8 (V+) - L109-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μsec./DIV.
        Condition Power switch on (READY), Reverse (R) selected

        Tech Tips

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

  2. STEREO COMPONENT AMPLIFIER ASSEMBLY (for 8 Speakers)

    A0041MRE22
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    L68-1 (+B) - L68-3 (GND) W - BR Power source (+B) Power switch off 11 to 14 V
    L68-3 (GND) - Body ground BR - Body ground Ground Always Below 1 V
    L68-8 (WFL+) - L68-3 (GND) P - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L68-9 (FR+) - L68-3 (GND) LG - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L68-10 (TWL+) - L68-3 (GND) B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    L68-11 (RL+) - L68-3 (GND) B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    L68-12 (RR+) - L68-3 (GND) R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L68-13 (TWR+) - L68-3 (GND) R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L68-14 (FL+) - L68-3 (GND) P - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L68-15 (WFR+) - L68-3 (GND) LG - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L68-16 (+B2) - L68-3 (GND) B - BR Power source (+B) Power switch off 11 to 14 V
    L68-18 (GND2) - Body ground BR - Body ground Ground Always Below 1 V
    L68-23 (WFL-) - L68-3 (GND) V - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L68-24 (FR-) - L68-3 (GND) L - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L68-25 (TWL-) - L68-3 (GND) Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    L68-26 (RL-) - L68-3 (GND) Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    L68-27 (RR-) - L68-3 (GND) W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L68-28 (TWR-) - L68-3 (GND) W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    L68-29 (FL-) - L68-3 (GND) V - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output
    L68-30 (WFR-) - L68-3 (GND) L - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    L69-1 (MUTE) - L68-3 (GND) B - BR Mute signal Audio system playing Above 3.5 V
    Audio system changing modes Below 1 V
    L69-2 (L-) - L68-3 (GND) W - BR Sound signal (Left) Audio system playing A waveform synchronized with sounds is output
    L69-3 (L+) - L68-3 (GND) R - BR Sound signal (Left) Audio system playing A waveform synchronized with sounds is output
    L69-4 (R-) - L68-3 (GND) B - BR Sound signal (Right) Audio system playing A waveform synchronized with sounds is output
    L69-5 (R+) - L68-3 (GND) G - BR Sound signal (Right) Audio system playing A waveform synchronized with sounds is output
    L69-6 (SLD) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L69-7 (TX-) R AVC-LAN communication signal - -
    L69-8 (TX+) G AVC-LAN communication signal - -
    L69-11 (SPD) - L68-3 (GND) V - BR Vehicle speed signal

    Power switch on (IG)

    Wheel being rotated

    		 Pulse generation
    L69-12 (ACC) - L68-3 (GND) GR - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    L69-14 (II1-) - L68-3 (GND) BR - BR Voice signal Voice guidance sounding A waveform synchronized with sounds is output
    L69-15 (II1+) - L68-3 (GND) Y - BR Voice signal Voice guidance sounding A waveform synchronized with sounds is output
    L69-18 (SLD1) - Body ground Shield - Body ground Shield ground Always Below 1 V