Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Telemute function for non-integrated mobile phones
With the telemute function, the audio module (AUM)/ audio control module (AUD), is muted when the cell phone rings.
The design consists of a signal input and a signal output. The input signal is digital (0V/12V) and the output signal is a Controller area network (CAN) communication.
The telemute function is available as accessory for the accessory electronic module (AEM) for cars of later versions.
The difference in chassis numbers between the two versions is shown in the chart.
| Model | Chassis number | |
|---|---|---|
| Early version | Later version | |
| S60 | - | All |
| S80 | -161195 | 161196- |
| V70 | -045075 (1) | 045076- (1) |
| -047529 (2) | 047530- (2) | |
| V70XC | -003972 | 003973- |
| XC90 | - | All |
(1) applies to cars manufactured in production plant 1.
(2) applies to cars manufactured in production plant 2.
Information regarding which production plant a car is manufactured in can be found in the VIN number. The seventh position from the right in the VIN specifies the production plant.
When post-installing the hands free unit the car must be configured using new software. Configuration is carried out via VIDA.
There are diagnostics for the telemute function.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.