TELEMATICS TRANSCEIVER
| *a | Connect to roof antenna connector | - | - |
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| G56-1 (+B) - G56-4 (E) | LA-L - LA | Power source (+B) | Power switch off | 11 to 14 V |
| G56-2 (SPI+) - G56-4 (E) | LA-L - LA | Sound signal | Audio system playing | A waveform synchronized with sound is output |
| G56-3 (SPI-) - G56-4 (E) | LA-P - LA | Sound signal | Audio system playing | A waveform synchronized with sound is output |
| G56-4 (E) - Body ground | LA - Body ground | Ground | Always | Below 1 Ω |
| G56-5 (SPO+) - G56-4 (E) | LA-L - LA | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output |
| G56-6 (SPO-) - G56-4 (E) | LA-P - LA | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output |
| G56-7 (IG2) - G56-4 (E) | R - LA | Power source (IG) | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| G56-8 (ACC) - G56-4 (E) | BE - LA | Power source (ACC) | Power switch on (ACC) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| G56-9 (SLED) - G56-4 (E) | SB - LA | Emergency call switch illumination power supply | Power switch on (ACC) | 5 to 8 V |
| Power switch off | Below 1 V | |||
| G56-11 (IND1) - G56-4 (E) | G - LA | Emergency call switch red indicator illumination signal | For 5 seconds after turning the power switch on (ACC) | 1 to 8.5 V |
| Power switch off | Below 1 V | |||
| G56-12 (IND2) - G56-4 (E) | P - LA | Emergency call switch green indicator illumination signal | For 5 seconds after turning the power switch on (ACC) | 1 to 8.5 V |
| Power switch off | Below 1 V | |||
| G56-13 (BBI-) | LA-L | Mayday battery (Back-up Battery) power supply | - | - |
| G56-15 (CANP) | G | CAN communication signal | - | - |
| G56-16 (CANN) | W | CAN communication signal | - | - |
| G56-17 (MUTE) - G56-4 (E) | L - LA | MUTE Signal | Audio system playing | 3.5 V or higher |
| Emergency call mode | Below 1 V | |||
| G56-18 (MCO+) - G56-4 (E) | W - LA | Microphone voice signal | Refer to "Microphone Check" |
- |
| G56-19 (MCO-) - G56-4 (E) | B - LA | Microphone voice signal | Refer to "Microphone Check" |
- |
| G56-20 (CTR1) | SB | Mayday battery (Back-up Battery) control line | - | - |
| G56-21 (CTR2) | LG | Mayday battery (Back-up Battery) control line | - | - |
| G56-24 (GSW) - G56-4 (E) | W - LA | Airbag deployment signal | Power switch on (IG) | Pulse generation (Refer to waveform 1) |
| G56-26 (SIG-) - G56-4 (E) | V - LA | Ground | Always | Below 1 Ω |
| G56-27 (SIG1) - G56-26 (SIG-) | Y - V | 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 | |||
| G56-30 (BBI+) | LA-R | Mayday battery (Back-up Battery) power supply | - | - |
| G56-32 (SGND) - G56-4 (E) | Shielded - LA | Shield ground | Always | Below 1 Ω |
| G56-33 (MCVD) - G56-4 (E) | R - LA | Telephone microphone assembly power supply | Power switch on (ACC) | 4 to 6 V |
| Power switch off | Below 1 V | |||
| G56-34 (MCI+) - G56-4 (E) | W - LA | Microphone voice signal | Refer to "Microphone Check" |
- |
| G56-35 (MCI-) - G56-4 (E) | R - LA | Microphone voice signal | Refer to "Microphone Check" |
- |
| A-1 (USB-) | # | USB communication line | - | - |
| A-2 (USB+) | # | USB communication line | - | - |
| A-6 (USBS) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 Ω |
| A-3 (USBG) - Body ground | # - Body ground | Shield ground | Always | Below 1 Ω |
| A-4 (VOT+) - G56-4 (E) | # - LA | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
| A-5 (USBV) - G56-4 (E) | # - LA | Signal for connection check of DCM and radio receiver assembly | Power switch on (ACC) | 3.0 to 5.25 V |
| Power switch off | Below 1 V | |||
| A-7 (VOT-) - G56-4 (E) | # - LA | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
| A-8 (VOR-) - G56-4 (E) | # - LA | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output |
| A-9 (VOR+) - G56-4 (E) | # - LA | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output |
#: There is no wire color information
Reference (Oscilloscope waveform):
Waveform 1
| Item | Condition |
|---|---|
| Tester Connection | G56-24 (GSW) - G56-4 (E) |
| Tool Setting | 5.0 V/DIV., 20 ms./DIV. |
| Vehicle Condition | Power switch on (IG) |
RADIO RECEIVER ASSEMBLY
NAVIGATION ECU