TELEMATICS SYSTEM(w/ Telematics Transceiver for G-BOOK) TERMINALS OF ECU

Tech Tips

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


  1. TELEMATICS TRANSCEIVER

    A001BUDE02
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L181-1 (+B) - L181-4 (E) R - B Power source (+B) Always 11 to 14 V
    L181-2 (SPI+) - L181-4 (E) L - B Sound signal Audio system playing A waveform synchronized with sound is output
    L181-3 (SPI-) - L181-4 (E) LG - B Sound signal Audio system playing A waveform synchronized with sound is output
    L181-4 (E) - Body ground B - Body ground Ground Always Below 1 V
    L181-5 (SPO+) - L181-4 (E) V - B Sound signal Emergency call mode A waveform synchronized with the received voice is output
    L181-6 (SPO-) - L181-4 (E) P - B Sound signal Emergency call mode A waveform synchronized with the received voice is output
    L181-7 (IG2) - L181-4 (E) R - B Power source (IG) Engine switch on (IG) 11 to 14 V
    Engine switch off Below 1 V
    L181-8 (ACC) - L181-4 (E) LG - B Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    L181-11 (IND1) - L181-4 (E) LG - B Emergency call switch red indicator illumination signal For 5 seconds after turning the engine switch on (ACC) 1 to 8.5 V
    Engine switch off Below 1 V
    L181-12 (IND2) - L181-4 (E) L - B Emergency call switch green indicator illumination signal For 5 seconds after turning the engine switch on (ACC) 1 to 8.5 V
    Engine switch off Below 1 V
    L181-15 (CANP) R CAN communication signal - -
    L181-16 (CANN) G CAN communication signal - -
    L181-17 (MUTE) - L181-4 (E) SB - B Mute Signal Audio system playing Above 3.5 V
    Emergency call mode Below 1 V
    L181-18 (MCO+) - L181-4 (E) Y - B Microphone voice signal

    Refer to "Microphone Check" Click here

    		-
    L181-19 (MCO-) - L181-4 (E) BR - B Microphone voice signal

    Refer to "Microphone Check" Click here

    		-
    L181-24 (GSW) - L181-4 (E) L - B Airbag deployment signal Engine switch on (IG)

    Pulse generation

    (Refer to waveform 1)
    L181-26 (SIG-) - L181-4 (E) G - B Ground Always Below 1 V
    L181-27 (SIG1) - L181-26 (SIG-) P - G Emergency call switch button condition signal Emergency call switch not pressed 1.3 to 1.9 V
    Emergency call switch pressed 0.5 to 0.8 V
    L181-32 (SGND) - L181-4 (E) Shield - B Shield ground Always Below 1 V
    L181-33 (MCVD) - L181-4 (E) B - B Telephone microphone assembly power supply Engine switch on (ACC) 4 to 6 V
    Engine switch off Below 1 V
    L181-34 (MCI+) - L181-4 (E) W - B Microphone voice signal

    Refer to "Microphone Check" Click here

    		-
    L181-35 (MCI-) - L181-4 (E) R - B Microphone voice signal

    Refer to "Microphone Check" Click here

    		-
    L172-1-1 (USB-) - USB communication line - -
    L172-1-2 (USB+) - USB communication line - -
    L172-1-3 (USBS) - Body ground Shield - Body ground Shield ground Always Below 1 V
    L172-2 (USBG) - Body ground W - Body ground Shield ground Always Below 1 V
    L172-3 (VOT+) - L181-4 (E) G - B Receive voice signal Receiving a call while using the operator service A waveform synchronized with the received voice is output
    L172-4 (USBV) - L181-4 (E) W - B Telephone microphone assembly power supply Engine switch on (ACC) 4.75 to 5.25 V
    Engine switch off Below 1 V
    L172-5 (VOT-) - L181-4 (E) B - B Receive voice signal Receiving a call while using the operator service A waveform synchronized with the received voice is output
    L172-6 (VOR-) - L181-4 (E) R - B Sent voice signal Calling while using the operator service A waveform synchronized with the sent voice is output
    L172-7 (VOR+) - L181-4 (E) W - B Sent voice signal Calling while using the operator service A waveform synchronized with the sent voice is output

    1. Reference (Oscilloscope waveform):


      1. A001A4RE01

        Waveform 1

        Item Condition
        Tester Connection L181-24 (GSW) - L181-4 (E)
        Tool setting 5.0 V/DIV., 20 ms/DIV.
        Vehicle condition Engine switch on (IG)

  2. MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here