AUDIO AND VISUAL SYSTEM (for Radio and Display Type) TERMINALS OF ECU

Tech Tips

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


  1. RADIO AND DISPLAY RECEIVER ASSEMBLY

    B000MRUE03
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    I152-1 (FR+) - I152-7 (GND1) LG - BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I152-2 (FL+) - I152-7 (GND1) P - BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I152-3 (ACC1) - I152-7 (GND1) GR - BR Power source (ACC) Ignition switch off Below 1 V
    Ignition switch ACC 11 to 14 V
    I152-4 (+B1) - I152-7 (GND1) L-Y - BR Power source (+B) Always 11 to 14 V
    I152-5 (FR-) - I152-7 (GND1) L - BR Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    I152-6 (FL-) - I152-7 (GND1) V - BR Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    I152-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V
    I152-10 (ILL+) - I152-7 (GND1) G - BR Illumination signal Light control switch in off position Below 1 V
    Light control switch in tail or head position 11 to 14 V
    I153-1 (RR+) - I152-7 (GND1) R - BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I153-2 (RL+) - I152-7 (GND1) B - BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I153-3 (RR-) - I152-7 (GND1) W - BR Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    I153-5 (ILL-) - I152-7 (GND1) W - BR Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    I153-6 (RL-) - I152-7 (GND1) Y - BR Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    I155-1 (IG) - I152-7 (GND1) Y - BR Power source (IG) Ignition switch off Below 1 V
    Ignition switch ON 11 to 14 V
    I155-2 (REV) - I152-7 (GND1) L - BR Reverse signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I155-4 (MACC) - I152-7 (GND1) B - BR Microphone power supply Ignition switch off Below 1 V
    Ignition switch ACC 4 to 6 V
    I155-5 (MIN+) - I152-7 (GND1) W - BR Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I155-6 (SNS2) - I152-7 (GND1) LG - BR Microphone connection detection signal Always Below 1 V
    I155-7 (TX1+)*2 GR AVC-LAN communication signal - -
    I155-8 (TX1-)*2 G AVC-LAN communication signal - -
    I155-9 (CANH) R CAN communication signal - -
    I155-10 (CANL) W CAN communication signal - -
    I155-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I155-12 (SG) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I155-13 (VV+) - I152-7 (GND1) W - BR Video signal External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I155-14 (VV-) - I152-7 (GND1) W - BR Video signal Always Below 1 V
    I155-15 (PKB) - I152-7 (GND1) R - BR Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I155-17 (SPD) - I152-7 (GND1) V - BR Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    I155-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    I155-19 (MIN-) - I152-7 (GND1) R - BR Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    I155-21 (SW1) - I155-23 (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
    I155-22 (SW2) - I155-23 (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
    I155-23 (SWG) - I152-7 (GND1) P - BR Steering pad switch ground Always Below 1 V
    I155-24 (SW3) - I155-23 (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
    I155-25 (ADPG) - I152-7 (GND1) G - BR External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    I155-26 (VAR+) - I155-27 (VA-) B - W Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I155-27 (VA-) - I152-7 (GND1) W - BR Ground Always Below 1 V
    I155-28 (VAL+) - I155-27 (VA-) R - W Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    I185-3 (CNH1) GR Local bus communication signal - -
    I185-4 (CNL1) SB Local bus communication signal - -
    I185-11 (CA+) - I152-7 (GND1)*1 B - BR Television camera power supply Ignition switch ACC 5.5 to 7.05 V
    I185-12 (V+) - I152-7 (GND1)*1 W - BR Video signal

    Ignition switch ON

    Shift lever in R

    Camera lens not covered, displaying an image

    Pulse generation

    (Refer to waveform 1)

    Ignition switch ON

    Shift lever in R

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    I185-23 (CGND) - Body ground*1 Shield - Body ground Shield ground Always Below 1 V
    I185-24 (V-) - I152-7 (GND1)*1 R - BR Ground Always Below 1 V
    I156-1 (UPO)*3 - Power source - -
    I156-2 (UDO-)*3 - Data signal - -
    I156-3 (UDO+)*3 - Data signal - -
    I156-4 (UPSG)*3 - Ground - -
    I156-5 (USG1)*3 - Shield ground - -
    I205-1 (UPO)*4 - Power source - -
    I205-2 (UDO-)*4 - Data signal - -
    I205-3 (UDO+)*4 - Data signal - -
    I205-4 (UPSG)*4 - Ground - -
    I205-5 (USG1)*4 - Shield ground - -
    I205-1 (USV1)*5 - Power source - -
    I205-2 (US1-)*5 - Data signal - -
    I205-3 (US1-)*5 - Data signal - -
    I205-4 (UGD1)*5 - Ground - -
    I205-5 (USG1)*5 - Shield ground - -
    RA-5 (ANT+) - I152-7 (GND1) - - BR Power source of antenna

    Ignition switch ACC

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: w/ Rear View Monitor System

    • *2: w/ Cooler Control Switch Assembly

    • *3: w/o DVD Player

    • *4: for RHD with DVD Player

    • *5: for LHD


    1. B000ITOE20
      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 I185-12 (V+) - I152-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Ignition switch ON, 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 ignition switch is ACC.

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

        Item Content
        Measurement terminal I185-12 (V+) - I152-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Ignition switch ON, 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 ignition switch is ACC.

  2. COOLER CONTROL SWITCH ASSEMBLY (w/ Cooler Control Switch Assembly)

    B000L0GE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    X1-1 (+B) - X1-16 (GND) R - W-B Power source (+B) Always 11 to 14 V
    X1-5 (TX-) Y AVC-LAN communication signal - -
    X1-6 (ACC) - X1-16 (GND) GR - W-B Power source (ACC) Ignition switch off Below 1 V
    Ignition switch ACC 11 to 14 V
    X1-7 (IG+) - X1-16 (GND) V - W-B Power source (IG) Ignition switch off Below 1 V
    Ignition switch ON 11 to 14 V
    X1-15 (TX+) GR AVC-LAN communication signal - -
    X1-16 (GND) - Body ground W-B - Body ground Ground Always Below 1 V