TELEPHONE TRANSCEIVER ASSEMBLY
| *a | Connect to telephone antenna connector | - | - |
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| P134-1 (+B) - P134-4 (E) | LA-P - W-B | Power source (+B) | Power switch off | 11 to 14 V |
| P134-2 (SPI+) - P134-4 (E) | L - W-B | Sound signal | Audio system playing | A waveform synchronized with sound is output |
| P134-3 (SPI-) - P134-4 (E) | P - W-B | Sound signal | Audio system playing | A waveform synchronized with sound is output |
| P134-4 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| P134-5 (SPO+) - P134-4 (E) | L - W-B | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output |
| P134-6 (SPO-) - P134-4 (E) | P - W-B | Sound signal | Emergency call mode | A waveform synchronized with the received voice is output |
| P134-7 (IG2) - P134-4 (E) | G - W-B | Power source (IG) | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| P134-8 (ACC) - P134-4 (E) | BE - W-B | Power source (ACC) | Power switch on (ACC) | 11 to 14 V |
| Power switch off | Below 1 V | |||
| P134-9 (SLED) - P134-4 (E) | SB - W-B | Emergency call switch illumination power supply | Power switch on (ACC) | 5 to 8 V |
| Power switch off | Below 1 V | |||
| P134-11 (IND1) - P134-4 (E) | BR - W-B | 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 | |||
| P134-12 (IND2) - P134-4 (E) | P - W-B | 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 | |||
| P134-13 (BBI-) | L | Mayday battery (Back-up Battery) power supply | - | - |
| P134-15 (CANP) | W | CAN communication signal | - | - |
| P134-16 (CANN) | LG | CAN communication signal | - | - |
| P134-17 (MUTE) - P134-4 (E) | V - W-B | MUTE Signal | Audio system playing | 3.5 V or higher |
| Emergency call mode | Below 1 V | |||
| P134-18 (MCO+) - P134-4 (E) | W - W-B | Microphone voice signal | Refer to "Microphone Check" |
- |
| P134-19 (MCO-) - P134-4 (E) | B - W-B | Microphone voice signal | Refer to "Microphone Check" |
- |
| P134-20 (CTR1) | B | Mayday battery (Back-up Battery) control line | - | - |
| P134-21 (CTR2) | W | Mayday battery (Back-up Battery) control line | - | - |
| P134-24 (GSW) - P134-4 (E) | R - W-B | Airbag deployment signal | Power switch on (IG) | Pulse generation (Refer to waveform 1) |
| P134-26 (SIG-) - P134-4 (E) | V - W-B | Ground | Always | Below 1 Ω |
| P134-27 (SIG1) - P134-26 (SIG-) | Y - G | 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 | |||
| P134-30 (BBI+) | P | Mayday battery (Back-up Battery) power supply | - | - |
| P134-32 (SGND) - P134-4 (E) | Shielded - W-B | Shield ground | Always | Below 1 Ω |
| P134-33 (MCVD) - P134-4 (E) | R - W-B | Telephone microphone assembly power supply | Power switch on (ACC) | 4 to 6 V |
| Power switch off | Below 1 V | |||
| P134-34 (MCI+) - P134-4 (E) | W - W-B | Microphone voice signal | Refer to "Microphone Check" |
- |
| P134-35 (MCI-) - P134-4 (E) | B - W-B | Microphone voice signal | Refer to "Microphone Check" |
- |
| P136-4 (USB-) | GR | USB communication line | - | - |
| P136-5 (USB+) | GR | USB communication line | - | - |
| P136-6 (USBS) - Body ground | GR - Body ground | Shield ground | Always | Below 1 Ω |
| P136-1 (USBG) - Body ground | W - Body ground | Shield ground | Always | Below 1 Ω |
| P136-2 (VOT+) - P134-4 (E) | B - W-B | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
| P136-3 (USBV) - P134-4 (E) | W - W-B | 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 | |||
| P136-7 (VOT-) - P134-4 (E) | B - W-B | Sent voice signal | Calling while using the operator service | A waveform synchronized with the sent voice is output |
| P136-8 (VOR-) - P134-4 (E) | B - W-B | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output |
| P136-9 (VOR+) - P134-4 (E) | B - W-B | Receive voice signal | Receiving a call while using the operator service | A waveform synchronized with the received voice is output |
Reference (Oscilloscope waveform):
Waveform 1
| Item | Condition |
|---|---|
| Tester Connection | P134-24 (GSW) - P134-4 (E) |
| Tool Setting | 5.0 V/DIV., 20 ms./DIV. |
| Vehicle Condition | Power switch on (IG) |
RADIO RECEIVER ASSEMBLY
NAVIGATION ECU