TELEMATICS TRANSCEIVER
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| G131-1 (+B) - G131-20 (E) | Power source (+B) | Ignition switch off | 11 to 14 V |
| G131-3 (SIG-) - G131-20 (E) | Ground | Always | Below 1 V |
| G131-4 (IND1) - G131-20 (E) | Emergency call switch red indicator illumination signal | For 5 seconds after turning the ignition switch to ON | 1 to 8.5 V |
| Ignition switch off | Below 1 V | ||
| G131-5 (MCVD) - G131-20 (E) | Telephone microphone assembly power supply | Ignition switch ON | 7.5 to 8.5 V |
| Ignition switch off | Below 1 V | ||
| G131-6 (MCI+) - G131-20 (E) | Microphone voice signal | Voice being input to telephone microphone assembly | A waveform synchronized with microphone voice signal is input |
| G131-7 (MCI-) - G131-20 (E) | Microphone voice signal | Always | Below 1 V |
| G131-13 (GSW) - G131-20 (E) | Collision detection signal | Ignition switch ON | Pulse generation
(Refer to waveform 1) |
| G131-14 (MUTE) - G131-20 (E) | MUTE Signal | Audio system playing | Above 3.5 V |
| Emergency call mode | Below 1 V | ||
| G131-15 (USBV) - G131-20 (E) | USB power supply | Ignition switch ON | 4.75 to 5.25 V |
| Ignition switch off | Below 1 V | ||
| G131-16 (MCO+) - G131-20 (E) | Microphone voice signal | Voice being input to telephone microphone assembly | A waveform synchronized with microphone voice signal is input |
| G131-17 (VOT+) - G131-20 (E) | Sent voice signal | Calling while using the operator service | A waveform synchronized with the received voice is output |
| G131-19 (IG2) - G131-20 (E) | Power source (IG) | Ignition switch ON | 11 to 14 V |
| Ignition switch off | Below 1 V | ||
| G131-20 (E) - Body ground | Ground | Always | Below 1 Ω |
| G131-21 (SIG1) - G131-3 (SIG-) | 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 | ||
| G131-22 (IND2) - G131-20 (E) | Emergency call switch green indicator illumination signal | For 5 seconds after turning the ignition switch to ON | 1 to 8.5 V |
| Ignition switch off | Below 1 V | ||
| G131-23 (SGND) - G131-20 (E) | Shield ground | Always | Below 1 Ω |
| G131-25 (CANP) | CAN communication signal | - | - |
| G131-26 (CANN) | CAN communication signal | - | - |
| G131-31 (USBG) - Body ground | Shield ground | Always | Below 1 Ω |
| G131-32 (MCO-) - G131-20 (E) | Microphone voice signal | Always | Below 1 V |
| G131-33 (VOT-) - G131-20 (E) | Sent voice signal | Calling while using the operator service | A waveform synchronized with the received voice is output |
| G132-1 (SPI+) - G131-20 (E) | Sound signal | Audio system playing | A waveform synchronized with sound signals is output |
| G132-2 (SPI-) - G131-20 (E) | Sound signal | Audio system playing | A waveform synchronized with sound signals is output |
| G132-3 (SPO+) - G131-20 (E) | Sound signal | Audio system playing, or emergency call mode | A waveform synchronized with sound signals is output |
| G132-4 (SPO-) - G131-20 (E) | Sound signal | Audio system playing, or emergency call mode | A waveform synchronized with sound signals is output |
| G143-1 (USB-) | USB communication line | - | - |
| G143-2 (USB+) | USB communication line | - | - |
| G143-3 (USBS) - Body ground | USB communication line | Always | Below 1 Ω |
Reference (Oscilloscope waveform):
Waveform 1
| Item | Condition |
|---|---|
| Tester Connection | G131-13 (GSW) - G131-20 (E) |
| Tool Setting | 5.0 V/DIV., 20 ms./DIV. |
| Vehicle Condition | Ignition switch ON |
RADIO AND DISPLAY RECEIVER ASSEMBLY (w/o Navigation System)
NAVIGATION RECEIVER ASSEMBLY (w/ Navigation System)