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

Tech Tips

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


  1. TELEMATICS TRANSCEIVER

    A0019PJC15
    *a Connector Color: Gray (to GNSS Antenna) *b Connector Color: Blue (to Telephone Antenna)
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    L181-1 (+B) - L181-4 (E) R - W-B Power source (+B) Always 11 to 14 V
    L181-2 (SPI+) - L181-4 (E) L - W-B Sound signal Audio system playing A waveform synchronized with sound signals is output
    L181-3 (SPI-) - L181-4 (E) LG - W-B Sound signal Audio system playing A waveform synchronized with sound signals is output
    L181-4 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
    L181-5 (SPO+) - L181-4 (E) V - W-B Sound signal Audio system playing, or emergency call mode A waveform synchronized with sound signals is output
    L181-6 (SPO-) - L181-4 (E) P - W-B Sound signal Audio system playing, or emergency call mode A waveform synchronized with sound signals is output
    L181-7 (IG2) - L181-4 (E) R - W-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 - W-B Power source (ACC) Engine switch on (ACC) 11 to 14 V
    Engine switch off Below 1 V
    L181-10 (SPDP) - L181-4 (E) V - W-B Vehicle speed signal

    See "Vehicle Signal Check Mode" in Operation Check

    Click here

    		-
    L181-11 (IND1) - L181-4 (E) LG - 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
    L181-12 (IND2) - L181-4 (E) L - W-B Manual (SOS) switch indicator (green) illumination signal For 2 seconds after engine switch turned on (IG) and the manual (SOS) switch indicator (red) has illuminated for 10 seconds 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 - W-B Mute signal Audio system playing 3.5 to 5 V
    Emergency call mode Below 1 V
    L181-18 (MCO+) - L181-4 (E) Y - W-B Sent microphone voice signal

    See "Microphone Check" in Operation Check

    Click here

    		-
    L181-19 (MCO-) - L181-4 (E) BR - W-B Sent microphone voice signal

    See "Microphone Check" in Operation Check

    Click here

    		-
    L181-23 (ILL+) - L181-4 (E) G - W-B Illumination signal Light control switch off Below 1 V
    Light control switch in tail or head position 11 to 14 V
    L181-24 (GSW) - L181-4 (E) L - W-B Collision detection signal Engine switch on (IG)

    Pulse generation

    (Refer to waveform 1)
    L181-26 (SIG-) - L181-4 (E) G - W-B Ground Always Below 1 Ω
    L181-27 (SIG1) - L181-4 (E) P - 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
    L181-32 (SGND) - L181-4 (E) Shielded - W-B Shield ground Always Below 1 Ω
    L181-33 (MCVD) - L181-4 (E) B - W-B Microphone power supply Engine switch off Below 1 V
    Engine switch on (ACC) 4 to 6 V
    L181-34 (MCI+) - L181-4 (E) W - W-B Receive microphone voice signal

    See "Microphone Check" in Operation Check

    Click here

    		-
    L181-35 (MCI-) - L181-4 (E) R - W-B Receive microphone voice signal

    See "Microphone Check" in Operation Check

    Click here

    		-

    1. A001A4RN08

      Oscilloscope waveform:


      1. 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