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Terminals Of Ecu [12/2019 - 10/2022]

  1. CHECK DCM (TELEMATICS TRANSCEIVER) 
    GTY841674Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Terminal Description Condition Specified Condition
    H11-1 (+B) - H11-20 (E) Power source (+B) Ignition switch off*1
    Always*2    		 11 to 14 V*3
    10.5 to 16 V*4
    H11-3 (SIG-) - H11-20 (E) Ground Always Below 1 V
    H11-4 (IND1) - H11-20 (E) Manual (SOS) switch red indicator illumination signal For 2 seconds after ignition switch turned to ON 1 to 8.5 V
    Ignition switch off Below 1 V
    H11-5 (MCVD) - H11-20 (E) Telephone microphone assembly power supply Ignition switch ON 4 to 6 V
    Ignition switch off Below 1 V
    H11-6 (MCI+) - H11-20 (E) Receive microphone voice signal Voice being input to telephone microphone assembly A waveform synchronized with microphone voice signal is input
    H11-7 (MCI-) - H11-20 (E) Receive microphone voice signal Always Below 1 V
    H11-13 (GSW) - H11-20 (E) Collision detection signal Ignition switch ON Pulse generation (Refer to waveform1)
    H11-19 (IG2) - H11-20 (E) Power source (IG) Ignition switch ON 11 to 14 V*3
    10.5 to 16 V*4
    Ignition switch off Below 1 V
    H11-20 (E) - Body ground Ground Always Below 1 Ω
    H11-21 (SIG1) - H11-3 (SIG-) Manual (SOS) switch button condition signal Manual (SOS) switch not pressed 1.3 to 1.9 V
    Manual (SOS) switch pressed 0.5 to 0.8 V
    H11-22 (IND2) - H11-20 (E) Manual (SOS) switch green indicator illumination signal For 2 seconds after ignition switch turned to ON 1 to 8.5 V
    Ignition switch off Below 1 V
    H11-23 (SGND) - H11-20 (E) Shield ground Always Below 1 Ω
    H11-25 (CANP) CAN communication signal - -
    H11-26 (CANN) CAN communication signal - -

    *1: for HV Model

    *2: for Gasoline Model

    *3: w/o Stop and Start System

    *4: w/ Stop and Start System

    1. Oscilloscope waveform:
      GTY424726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Waveform 1
        Item Condition
        Tester connection H11-13 (GSW) - H11-20 (E)
        Tool setting 5.0 V/DIV., 20 ms/DIV.
        Vehicle condition Ignition switch ON
  2. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (for 8 Inch Display) 

    w/o Navigation System: Refer to TERMINALS OF ECU [12/2019 - 10/2022]

    w/ Navigation System: Refer to TERMINALS OF ECU [12/2019 - 10/2022]

  3. CHECK RADIO RECEIVER ASSEMBLY (for 12.3 Inch Display) 

    Refer to TERMINALS OF ECU [12/2019 - 10/2022]

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