Capacity of the emergency battery (Volvo On Call/Volvo On Call Plus)
This parameter indicates the remaining capacity of the internal emergency battery. The emergency battery is only available for phone modules (PHM) with Volvo On Call/Volvo On Call Plus functionality.
The emergency battery is only used when activating the Volvo On Call/Volvo On Call Plus service and if there is no power supply.
The remaining capacity is calculated by the phone module (PHM).
Measurement range 0-100%.
100% is full capacity.
The diagnostic trouble code (DTC) stores a diagnostic trouble code (DTC) when the capacity drops to 30%.
- 0% corresponds to 0 minutes call time
- 10% corresponds to approximately 5 minutes call time
- 20% corresponds to approximately 10 minutes call time
- 30% corresponds to approximately 15 minutes call time
- 40-50% corresponds to approximately 20 minutes call time
- 60% corresponds to approximately 30 minutes call time
- 70-100% corresponds to more than 30 minutes call time.
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.
| U= | DC voltage in volts (V) | U AC = | AC voltage in volts (V) |
|---|---|---|---|
| U bat = | Battery voltage (V) | F = | Frequency in Hertz (Hz) |
| U low = | Voltage approximately 0 V | T = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
Scheme 9
| Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|
| #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=U low U=12 V otherwise | ||
| #7 | Loudspeaker signal (-) | Alternating current when there is sound in the loudspeaker | ||
| #8 |
Connector handsfree box
Scheme 10
| Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|
| #1 | Handsfree antenna | Handsfree antenna signal | ||
| #2 | Antenna ground | U low |
Antenna connector
Scheme 11
| Control module terminal | Signal type | Ignition on | Idle | Other |
|---|---|---|---|---|
| #1 | Microphone | Alternating current when there is sound in the microphone | ||
| #2 | Signal ground, microphone | U low |
Microphone connector
Signal specification, audio control module
See Signal specification, audio control module
See Signal specification, audio control module
Signal specification, RTI
See Signal specification, RTI
See also:
• RADIO CASSETTE PLAYER, REPLACING