TELEMATICS TRANSCEIVER
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| P2-1 (+B) - P2-4 (E) | G - W-B | Battery | Engine switch off | 11 to 14 V |
| P2-2 (SPI+) - P2-4 (E) | W - W-B | Sound signal | Audio system playing | A waveform synchronized with sound is output. |
| P2-3 (SPI-) - P2-4 (E) | B - W-B | Sound signal | Audio system playing | A waveform synchronized with sound is output. |
| P2-4 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| P2-5 (SPO+) - P2-4 (E) | W - W-B | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output. |
| P2-6 (SPO-) - P2-4 (E) | B - W-B | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output. |
| P2-7 (IG2) - P2-4 (E) | B - W-B | Power source (IG) | Engine switch on (IG) | 11 to 14 V |
| Engine switch off | Below 1 V | |||
| P2-8 (ACC) - P2-4 (E) | GR - W-B | Accessory (ON) | Engine switch on (ACC) | 11 to 14 V |
| Engine switch off | Below 1 V | |||
| P2-11 (IND1) - P2-4 (E) | L - W-B | Emergency call switch red indicator illumination signal | For 5 seconds after turning the engine switch on (ACC) | 1 to 8.5 V |
| Engine switch off | Below 1 V | |||
| P2-12 (IND2) - P2-4 (E) | P - W-B | Emergency call switch green indicator illumination signal | For 5 seconds after turning the engine switch on (ACC) | 1 to 8.5 V |
| Engine switch off | Below 1 V | |||
| P2-13 (BBI-) - P2-4 (E) | L - W-B | Mayday battery power supply | - | - |
| P2-17 (MUTE) - P2-4 (E) | B - W-B | MUTE Signal | Audio system playing | 3.5 V or higher |
| Emergency call mode | Below 1 V | |||
| P2-18 (MCO+) - P2-4 (E) | G - W-B | Microphone voice signal | See "Microphone&Voice Recognition Check" Click here |
A waveform synchronized with the input voice. |
| P2-19 (MCO-) - P2-4 (E) | R - W-B | Microphone voice signal | See "Microphone&Voice Recognition Check" Click here |
Below 1 Ω |
| P2-20 (CTR1) - P2-4 (E) | B - W-B | Mayday battery control line | - | - |
| P2-21 (CTR2) - P2-4 (E) | V - W-B | Mayday battery control line | - | - |
| P2-24 (GSW) - P2-4 (E) | L - W-B | Airbag deployment signal | Engine switch on (IG) | Pulse generation (Refer to waveform 1) |
| P2-26 (SIG-) - P2-4 (E) | L - W-B | Ground | Always | Below 1 V |
| P2-27 (SIG1) - P2-26 (SIG-) | W - L | Emergency call switch condition signal | Emergency call switch not pressed | 1.7 V |
| Emergency call switch pressed | 1 V | |||
| P2-30 (BBI+) - P2-4 (E) | R - W-B | Mayday Battery Power Supply | - | - |
| P2-32 (SGND) - P2-4 (E) | Shield - Body ground | Shield ground | Always | Below 1 Ω |
| P2-33 (MCVD) - P2-4 (E) | W - W-B | Telephone microphone assembly power supply | Engine switch on (ACC) | 5 V |
| Engine switch off | Below 1 V | |||
| P2-34 (MCI+) - P2-4 (E) | B - W-B | Microphone voice signal | See "Microphone&Voice Recognition Check" Click here |
Synchronized with the voice wave. |
| P2-35 (MCI-) - P2-4 (E) | R - W-B | Microphone voice signal | See "Microphone&Voice Recognition Check" Click here |
Synchronized with the voice wave. |
| P3-1-1 (USB-) | B | USB communication line | - | - |
| P3-1-2 (USB+) | B | USB communication line | - | - |
| P3-1-3 (USBS) | B | USB communication line | - | - |
| P3-2 (USBG) - Body ground | W - Body ground | Shield ground | Always | Below 1 V |
| P3-3 (VOT+) - P2-4 (E) | W - W-B | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output. |
| P3-4 (USBV) - P2-4 (E) | W - W-B | Telephone microphone assembly power supply | Engine switch on (ACC) | 4.75 to 5.25 V |
| Engine switch off | Below 1 V | |||
| P3-5 (VOT-) - P2-4 (E) | R - W-B | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output. |
| P3-6 (VOR-) - P2-4 (E) | B - W-B | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
| P3-7 (VOR+) - P2-4 (E) | G - W-B | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
Oscilloscope waveform:
Waveform 1
| Item | Condition |
|---|---|
| Tester Connection | P2-24 (GSW) - P2-4 (E) |
| Tool setting | 5.0 V/DIV., 20 ms/DIV. |
| Vehicle condition | Engine switch on (IG) |
MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here