AUDIO AND VISUAL SYSTEM (w/o DVD Player) 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

    A01I2KRE09
    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) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    I152-4 (+B1) - I152-7 (GND1) L-Y - BR Power source (+B) Power switch off 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 off Below 1 V

    Power switch off

    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) SB - 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) Power switch off Below 1 V
    Power switch on (IG) 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 Power switch off Below 1 V
    Power switch on (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
    I155-9 (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
    I155-15 (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
    I158-3 (CNH1)*3 GR Local bus communication signal - -
    I158-4 (CNL1)*3 SB Local bus communication signal - -
    I158-11 (CA+) - I152-7 (GND1)*1 B - BR Television camera power supply Power switch on (ACC) 5.5 to 7.05 V
    I158-12 (V+) - I152-7 (GND1)*1 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)
    I158-23 (CGND) - Body ground*1 Shield - Body ground Shield ground Always Below 1 V
    I158-24 (V-) - I152-7 (GND1)*1 R - BR Ground Always Below 1 V
    a3-3 (ACC2) - I152-7 (GND1)*2 Y - BR Power source (ACC) Power switch off Below 1 V
    Power switch on (ACC) 11 to 14 V
    a3-4 (+B2) - I152-7 (GND1)*2 R - BR Power source (+B) Power switch off 11 to 14 V
    a3-8 (GND2) - Body ground*2 B - Body ground Ground Always Below 1 V
    I156-1 (UPO) - Power source - -
    I156-2 (UDO-) - Data signal - -
    I156-3 (UDO+) - Data signal - -
    I156-4 (UESG) - Ground - -
    I156-5 (USG1) - Shield ground - -
    R5-1 (USV4)*2 - Power source - -
    R5-2 (US4-)*2 - Data signal - -
    R5-3 (US4+)*2 - Data signal - -
    R5-4 (UGD4)*2 - Ground - -
    R5-5 (USG4)*2 - Shield ground - -
    R6-1 (GVIF)*2 - LVDS communication signal - -
    RA-5 (ANT+) - I152-7 (GND1) - - BR Power source of antenna

    Power switch on (ACC)

    Radio switch on and FM or AM selected

    		 11 to 14 V

    • *1: w/ Rear View Monitor System

    • *2: w/ SDARS System

    • *3: w/ TFT Display


    1. A01I5RSE20
      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 I158-12 (V+) - I152-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Power 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 power switch is on (ACC).

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

        Item Content
        Measurement terminal I158-12 (V+) - I152-7 (GND1)
        Measurement setting 200 mV/DIV., 50 μs/DIV.
        Condition Power 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 power switch is on (ACC).

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

    A01I2EJE06
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    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 - -