TELEMATICS SYSTEM TERMINALS OF ECU

Tech Tips

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


  1. TELEMATICS TRANSCEIVER

    A0027AHC35
    *a Connector Color: Gray (to GNSS Antenna) *b Connector Color: Blue (to Telephone Antenna)
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    F140-1 (+B) - F140-4 (E) W - W-B Power source (+B) Always 11 to 14 V
    F140-2 (SPI+) - F140-4 (E) LG - W-B Sound signal Audio system playing A waveform synchronized with sound signals is output
    F140-3 (SPI-) - F140-4 (E) L - W-B Sound signal Audio system playing A waveform synchronized with sound signals is output
    F140-4 (E) - Body ground W-B - Body ground Ground Always Below 1 V
    F140-5 (SPO+) - F140-4 (E) W - W-B Sound signal Audio system playing, or emergency call mode A waveform synchronized with sound signals is output
    F140-6 (SPO-) - F140-4 (E) B - W-B Sound signal Audio system playing, or emergency call mode A waveform synchronized with sound signals is output
    F140-7 (IG2) - F140-4 (E) R - W-B Power source (IG) Engine switch on (IG) 11 to 14 V
    Engine switch off Below 1 V
    F140-8 (ACC) - F140-4 (E) GR - W-B Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    F140-9 (SLED) - F140-4 (E) R - W-B Manual (SOS) switch illumination power supply Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    F140-10 (SPDP) - F140-4 (E) BE - W-B Vehicle speed signal

    See "Vehicle Signal Check Mode" in Operation Check

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    		-
    F140-11 (IND1) - F140-4 (E) G - W-B Manual (SOS) switch indicator (red) illumination signal For 10 seconds after engine switch turned on (IG) 1 to 8.5 V
    Engine switch off Below 1 V
    F140-12 (IND2) - F140-4 (E) L - W-B Manual (SOS) switch indicator (green) illumination signal For 2 seconds after engine switch turned on (IG) 1 to 8.5 V
    Engine switch off Below 1 V
    F140-15 (CANP) B CAN communication signal - -
    F140-16 (CANN) W CAN communication signal - -
    F140-17 (MUTE) - F140-4 (E) Y*1, LG*2 - W-B Mute signal Audio system playing 5.0 V or less
    Emergency call mode Below 1 V
    F140-18 (MCO+) - F140-4 (E) L - W-B Sent microphone voice signal

    See "Microphone Check" in Operation Check

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    		-
    F140-19 (MCO-) - F140-4 (E) P - W-B Sent microphone voice signal

    See "Microphone Check" in Operation Check

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    		-
    F140-23 (ILL+) - F140-4 (E) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position 6.8 V or higher
    F140-24 (GSW) - F140-4 (E) B - W-B Collision detection signal Engine switch on (IG)

    Pulse generation

    (Refer to waveform 1)
    F140-26 (SIG-) - F140-4 (E) BE - W-B Ground Always Below 1 Ω
    F140-27 (SIG1) - F140-4 (E) B - W-B Manual (SOS) switch condition signal Manual (SOS) switch not pressed 2.0 to 2.3 V
    Manual (SOS) switch pressed Below 1 V
    F140-32 (SGND) - F140-4 (E) Shield - W-B Shield ground Always Below 1 Ω
    F140-33 (MCVD) - F140-4 (E) G - W-B Microphone power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    F140-34 (MCI+) - F140-4 (E) L - W-B Receive microphone voice signal

    See "Microphone Check" in Operation Check

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    		-
    F140-35 (MCI-) - F140-4 (E) P - W-B Receive microphone voice signal

    See "Microphone Check" in Operation Check

    Click here

    		-

    *1: for 6 Speakers

    *2: for 12 Speakers


    1. A002CO1N08

      Oscilloscope waveform:


      1. Waveform 1

        Item Condition
        Tester connection F140-24 (GSW) - F140-4 (E)
        Tool setting 5.0 V/DIV., 20 ms/DIV.
        Vehicle condition Engine switch on (IG)

  2. RADIO RECEIVER ASSEMBLY

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