Signal Specification
General
All the values given below are between the terminals stated in column 1 and terminal #1 in column 2 (signal ground). This applies unless otherwise indicated in brackets.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
There may be several connections and connectors between the control module and components. For more information about these, see relevant section in Wiring diagram.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
SIGNAL TABLE, CONNECTOR C1
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|---|
| #1 | #C1-1 | Diagnostic signal for switch ON CALL and SOS | U = 2 - 5 V | U = 2 - 5 V | Only Volvo On Call |
| #2 | #C1-2 | Input signal from ON CALL and SOS switches | ON CALL pressed in U=2.6 V, SOS pressed in U=2 V, otherwise U=5 V | ON CALL pressed in U=2.6 V, SOS pressed in U=2 V, otherwise U=5 V | Only Volvo On Call |
| #3 | #C1-3 | Voltage supply, SOS switch illumination | U=7 V | U=7 V | Only Volvo On Call |
| #4 | #C1-4 | Voltage supply, ON CALL switch illumination | U=7 V | U=7 V | Only Volvo On Call |
| #5 | #C1-5 | +30-feed | Ubat | Ubat | - |
| #6 | #C1-6 | Power ground | U=Ulow | U=Ulow | - |
| #7 | #C1-7 | Handset, voltage feed | Ubat | Ubat | - |
| #8 | #C1-8 | Handset, cradle signal | U=3.34 V when the handset is used, U=1.9 V when the handset is not used | U=3.34 V when the handset is used, U=1.90 V when the handset is not used. | - |
| #9 | #C1-9 | - | - | - | - |
| #10 | #C1-10 | - | - | - | - |
| #11 | #C1-11 | CAN (L) | Digital signal | Digital signal | - |
| #12 | #C1-12 | CAN (H) | Digital signal | Digital signal | - |
| #13 | #C1-13 | Signal ground, switch ON CALL and SOS | Ulow | Ulow | Only Volvo On Call |
| #14 | #C1-14 | Signal ground, auxiliary microphone | Ulow | Ulow | Only Volvo On Call |
| #15 | #C1-15 | Signal, spare microphone | U=5 V | U=5 V | Only Volvo On Call |
| #16 | #C1-16 | - | - | - | - |
| #17 | #C1-17 | Impact cable from SRS | U=12 V at activated SRS-component, otherwise U=0 V | U=12 V at activated SRS-component, otherwise U=0 V | - |
| #18 | #C1-18 | Handset, ground | Ulow | Ulow | - |
| #19 | #C1-19 | Handset, microphone signal | Alternating voltage at sound in microphone | Alternating voltage at sound in microphone | Difficult to measure |
| #20 | #C1-20 | Handset, speaker signal | Alternating voltage at sound in speaker | Alternating voltage at sound in speaker | Difficult to measure |
| #21 | #C1-21 | - | - | - | - |
| #22 | #C1-22 | - | - | - | - |
SIGNAL TABLE, CONNECTOR C2
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|---|
| - | #C2-1 | Signal, telephone antenna | Antenna signal | Antenna signal | - |
| - | #C2-2 | Ground, telephone antenna | Ulow | Ulow | - |
SIGNAL TABLE, CONNECTOR C3
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|---|
| #21 | #C3-1 | Clock signal to SIM-card | Pound signal | Pound signal | - |
| #22 | #C3-2 | Signal ground, SIM-card | Ulow | Ulow | - |
| #23 | #C3-3 | Voltage feed, SIM-card | U=2.8 V | U=2.8 V | - |
| #24 | #C3-4 | Communication cable, SIM-card | Pulsed signal | Pulsed signal | - |
| #25 | #C3-5 | Control signal, SIM-card | Pulsed signal | Pulsed signal | - |
| #26 | #C3-6 | Diagnostic cable, SIM-card | Ulow | Ulow | - |
SIGNAL TABLE, CONNECTOR C4
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|---|
| - | #C4-1 | MOST input signal | Optical input signal when the MOST network is activated | Optical input signal when the MOST network is activated | - |
| - | #C4-2 | MOST signal | Optical output signal when the MOST network is activated | Optical output signal when the MOST network is activated |
SIGNAL TABLE CONNECTOR HANDSET
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|---|
| #21 | #C5-1 | Handset, microphone signal | Alternating voltage at sound in microphone | Alternating voltage at sound in microphone | Difficult to measure |
| #22 | #C5-2 | Handset, speaker signal | Alternating voltage at sound in microphone | Alternating voltage at sound in microphone | Difficult to measure |
| #23 | #C5-3 | Handset, ground | Ulow | Ulow | - |
| #24 | #C5-4 | Handset, cradle signal | U=3.34 V when the handset is used, U=1.90 V when the handset is not used. | U=3.34 V when the handset is used, U=1.90 V when the handset is not used. | - |
| #25 | #C5-5 | Handset, voltage feed | Ubat | Ubat | - |