Signal specification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
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.
| 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 % |
Connector handsfree box
| Control module terminal | Signal type | Ignition on |
|---|---|---|
| #1 | Ground | U low |
| #2 | 30 supply In the XC90 and S40 (04-) the handsfree box is powered via the infotainment relay. |
U bat |
| #3 | - | - |
| #4 | Loudspeaker signal (+) | Alternating current when there is sound in the loudspeaker |
| #5 | 15 supply | U=12 V |
| #6 | Radio mute signal | During a call U=Ulow U=12 V otherwise |
| #7 | Loudspeaker signal (-) | Alternating current when there is sound in the loudspeaker |
| #8 | - | - |
Antenna connector
| Control module terminal | Signal type | Ignition on |
|---|---|---|
| #1 | Handsfree antenna | Handsfree antenna signal |
| #2 | Antenna ground | U low |
Microphone connector
| Control module terminal | Signal type | Ignition on |
|---|---|---|
| #1 | Microphone | Alternating current when there is sound in the microphone |
| #2 | Signal ground, microphone | U low |