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 AND DISPLAY RECEIVER ASSEMBLY

    A005EZ2E02
    *A w/ Rear View Monitor System *B w/ Intelligent Parking Assist System
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L167-1 (FR+) - L167-7 (GND1) LG - W-B Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    L167-2 (FL+) - L167-7 (GND1) P - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    L167-3 (ACC1) - L167-7 (GND1) GR - W-B Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    L167-4 (+B1) - L167-7 (GND1) L-Y - W-B Power source (+B) Power switch off 11 to 14 V
    L167-5 (FR-) - L167-7 (GND1) L - W-B Sound signal (Front right) Audio system playing A waveform synchronized with sound signals is output
    L167-6 (FL-) - L167-7 (GND1) V - W-B Sound signal (Front left) Audio system playing A waveform synchronized with sound signals is output
    L167-7 (GND1) - Body ground W-B - Body ground Ground Always Below 1 V
    L167-10 (ILL+) - L167-7 (GND1) G - W-B Illumination signal Light control switch off Below 1 V

    Power switch off

    Light control switch in tail or head position

    		 11 to 14 V
    L166-1 (RR+) - L167-7 (GND1) R - W-B Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    L166-2 (RL+) - L167-7 (GND1) B - W-B Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    L166-3 (RR-) - L167-7 (GND1) W - W-B Sound signal (Rear right) Audio system playing A waveform synchronized with sound signals is output
    L166-5 (ILL-) - L167-7 (GND1) SB - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position Pulse generation
    L166-6 (RL-) - L167-7 (GND1) Y - W-B Sound signal (Rear left) Audio system playing A waveform synchronized with sound signals is output
    L35-1 (IG) - L167-7 (GND1) B - W-B Power source (IG) Power switch off Below 1 V
    Power switch on (IG) 11 to 14 V
    L35-2 (REV) - L167-7 (GND1) P - W-B Reverse signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    L35-4 (MACC) - L167-7 (GND1) R - W-B Microphone power supply Power switch off Below 1 V
    Power switch on (ACC) 4 to 6 V
    L35-5 (MIN+) - L167-7 (GND1) BR - W-B Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    L35-6 (SNS2) - L167-7 (GND1) G - W-B Microphone connection detection signal Always Below 1 V
    L35-9 (CANH) B CAN communication signal - -
    L35-10 (CANL) W CAN communication signal - -
    L35-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L35-12 (SG) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L35-13 (VV+) - L167-7 (GND1) Y - W-B Video signal External device playing (When stereo jack used) A waveform synchronized with video signals is output
    L35-14 (VV-) - L167-7 (GND1) BR - W-B Video signal ground Always Below 1 V
    L35-15 (PKB) - L167-7 (GND1) Y - W-B Parking brake signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    L35-17 (SPD) - L167-7 (GND1) L - W-B Vehicle speed signal

    See "Check Vehicle Signal" in Operation Check Click here

    		-
    L35-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L35-19 (MIN-) - L167-7 (GND1) Y - W-B Microphone voice signal

    See "Check Microphone" in Operation Check Click here

    		-
    L35-21 (SW1) - L35-23 (SWG) P - W-B 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
    L35-22 (SW2) - L35-23 (SWG) SB - W-B 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
    L35-23 (SWG) - L167-7 (GND1) W-B - W-B Steering pad switch ground Always Below 1 V
    L35-25 (ADPG) - L167-7 (GND1) Y - W-B External device connection detection signal External device connected Below 1 V
    External device not connected 2.1 to 3 V
    L35-26 (VAR+) - L35-27 (VA-) B - W Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    L35-27 (VA-) - L167-7 (GND1) W - W-B Ground Always Below 1 V
    L35-28 (VAL+) - L35-27 (VA-) R - W Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sound signals is output
    L168-3 (CNH1)*1 B Local bus communication signal - -
    L168-4 (CNL1)*1 W Local bus communication signal - -
    L168-11 (CA+) - L167-7 (GND1)*1 B - W-B Television camera power supply Power switch on (ACC) 5.5 to 7.05 V
    L168-12 (V+) - L167-7 (GND1)*1 W - W-B Video signal

    Power switch on (IG)

    Reverse (R) selected

    Camera lens not covered, displaying an image

    Pulse generation

    (Refer to waveform 1)

    Power switch on (IG)

    Reverse (R) selected

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    L168-23 (CGND) - Body ground*1 Shield - Body ground Shield ground Always Below 1 V
    L168-24 (V-) - L167-7 (GND1)*1 R - W-B Ground Always Below 1 V
    L169-3 (CNH1)*2 B Local bus communication signal - -
    L169-4 (CNL1)*2 W Local bus communication signal - -
    L169-7 (TX3+)*2 B AVC-LAN communication signal - -
    L169-8 (TX3-)*2 W AVC-LAN communication signal - -
    L169-12 (V+) - L167-7 (GND1)*2 W - W-B Video signal

    Power switch on (IG)

    Reverse (R) selected

    Camera lens not covered, displaying an image

    Pulse generation

    (Refer to waveform 1)

    Power switch on (IG)

    Reverse (R) selected

    Camera lens covered, blacking out screen

    Pulse generation

    (Refer to waveform 2)
    L169-24 (V-) - L167-7 (GND1)*2 R - W-B Ground Always Below 1 V
    L175-1 (UP1) - Power source - -
    L175-2 (UDO-) - Data signal - -
    L175-3 (UDO+) - Data signal - -
    L175-4 (UJSG) - Ground - -
    L175-5 (UJSS) - Shield ground - -
    RA-5 (ANT+) - L167-7 (GND1) - - W-B Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    *1: w/ Rear View Monitor System

    *2: w/ Intelligent Parking Assist System


    1. Reference (Oscilloscope waveform):

      A005CEOE01

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

        Item Content
        Measurement terminal L169-12 (V+) - L167-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), Reverse (R) selected

        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 power switch is on (ACC).

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

        Item Content
        Measurement terminal L169-12 (V+) - L167-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs./DIV.
        Condition Power switch on (IG), Reverse (R) selected

        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 power switch is on (ACC).

        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