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.
Overview - Microphone Unit, From My 2021
The microphone unit is located in the Front Roof Module -WX3- and is comprised of the Interior Microphone -R74-, the Left Front Microphone -R140- and the Right Front Microphone -R141-.
The Interior Microphone -R74- is directly connected to the Information Electronics Control Module 1 -J794-.
The other microphones (Left Front Microphone -R140- /Right Front Microphone -R141-) are connected to the Control Module for Emergency Call Module and Communication Unit -J949-.
- Front Roof Module -WX3-
- Removing and installing. Refer to FRONT INTERIOR LAMP/READING LAMP, REMOVING AND INSTALLING .
- 4-Pin Connector -T4-
- Black
- Interior Microphone -R74-
- To the Information Electronics Control Module 1 -J794-
- Removing and Installing. Refer to Interior Microphone -R74-, REMOVING AND INSTALLING .
- Left Front Microphone -R140-
- To Control Module for Emergency Call Module and Communication Unit -J949-
- Removing and Installing. Refer to Left Front Microphone -R140- /Right Front Microphone -R141-, REMOVING AND INSTALLING .
- Right Front Microphone -R141-
- To Control Module for Emergency Call Module and Communication Unit -J949-
- Removing and Installing. Refer to Left Front Microphone -R140- /Right Front Microphone -R141-, REMOVING AND INSTALLING .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.