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 mobile telephones
In case of phone calls, the accessory electronic module (AEM) (4/78) receives an input signal from the aftermarket hands-free unit and transmits it on the CAN-net to the audio module (AUM) (16/1) (audio control module (AUD) in XC90). The audio module (AUM)/ audio control module (AUD) lowers the volume in the sound unit's speakers when the aftermarket hands-free unit is used.
The telemute function is available as an accessory for the accessory electronic module (AEM).
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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