TELEMATICS SYSTEM TERMINALS OF ECU
Check from the rear of the connector while it is connected to the components.
TELEMATICS TRANSCEIVER
*a
Connector Color: Gray (to GNSS Antenna)
*b
Connector Color: Blue (to Telephone Antenna)
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
E143-1 (+B) - E143-4 (E)
LG - W-B
Power source (+B)
Always
11 to 14 V
E143-2 (SPI+) - E143-4 (E)
LG - W-B
Sound signal
Audio system playing
A waveform synchronized with sound signals is output
E143-3 (SPI-) - E143-4 (E)
L - W-B
Sound signal
Audio system playing
A waveform synchronized with sound signals is output
E143-4 (E) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
E143-5 (SPO+) - E143-4 (E)
LG - W-B
Sound signal
Audio system playing, or emergency call mode
A waveform synchronized with sound signals is output
E143-6 (SPO-) - E143-4 (E)
L - W-B
Sound signal
Audio system playing, or emergency call mode
A waveform synchronized with sound signals is output
E143-7 (IG2) - E143-4 (E)
P - W-B
Power source (IG)
Ignition switch ON
11 to 14 V
Ignition switch off
Below 1 V
E143-8 (ACC) - E143-4 (E)
GR - W-B
Power source (ACC)
Ignition switch ACC
11 to 14 V
Ignition switch off
Below 1 V
E143-9 (SLID) - E143-4 (E)
W - W-B
Manual (SOS) switch illumination power supply
Ignition switch ACC
11 to 14 V
Ignition switch off
Below 1 V
E143-10 (SPDP) - E143-4 (E)
V - W-B
Vehicle speed signal
See "Vehicle Signal Check Mode" in Operation Check
w/o Navigation System:Click here
w/ Navigation System:Click here
-
E143-11 (IND1) - E143-4 (E)
B - W-B
Manual (SOS) switch indicator (red) illumination signal
For 10 seconds after ignition switch turned to ON
1 to 8.5 V
Ignition switch off
Below 1 V
E143-12 (IND2) - E143-4 (E)
GR - W-B
Manual (SOS) switch indicator (green) illumination signal
For 2 seconds after ignition switch turned to ON
1 to 8.5 V
Ignition switch off
Below 1 V
E143-15 (CANP)
G
CAN communication signal
-
-
E143-16 (CANN)
W
CAN communication signal
-
-
E143-17 (MUTE) - E143-4 (E)
L - W-B
Mute signal
Audio system playing
3.5 V or higher
Emergency call mode
Below 1 V
E143-18 (MCO+) - E143-4 (E)
G - W-B
Sent microphone voice signal
See "Microphone Check" in Operation Check
w/o Navigation System:Click here
w/ Navigation System:Click here
-
E143-19 (MCO-) - E143-4 (E)
R - W-B
Sent microphone voice signal
See "Microphone Check" in Operation Check
w/o Navigation System:Click here
w/ Navigation System:Click here
-
E143-23 (ILL+) - E143-4 (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
E143-24 (GSW) - E143-4 (E)
W - W-B
Collision detection signal
Ignition switch ON
Pulse generation
(Refer to waveform 1)
E143-26 (SIG-) - E143-4 (E)
P - W-B
Ground
Always
Below 1 V
E143-27 (SIG1) - E143-4 (E)
L - W-B
Manual (SOS) switch condition signal
Manual (SOS) switch not pressed
1.5 to 2.0 V
Manual (SOS) switch pressed
0.5 to 0.8 V
E143-32 (SGND) - E143-4 (E)
Shield - W-B
Shield ground
Always
Below 1 V
E143-33 (MCVD) - E143-4 (E)
R - W-B
Microphone power supply
Ignition switch off
Below 1 V
Ignition switch ACC
4 to 6 V
E143-34 (MCI+) - E143-4 (E)
B - W-B
Receive microphone voice signal
See "Microphone Check" in Operation Check
w/o Navigation System:Click here
w/ Navigation System:Click here
-
E143-35 (MCI-) - E143-4 (E)
W - W-B
Receive microphone voice signal
See "Microphone Check" in Operation Check
w/o Navigation System:Click here
w/ Navigation System:Click here
-
-
Oscilloscope waveform:
Waveform 1
Item
Condition
Tester connection
E143-24 (GSW) - E143-4 (E)
Tool setting
5.0 V/DIV., 20 ms/DIV.
Vehicle condition
Ignition switch ON
-
RADIO RECEIVER ASSEMBLY (for Radio Receiver Type)
RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Type)
w/o Navigation System:Click here
w/ Navigation System:Click here