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.
Control Module for Emergency Call Module and Communication Unit -J949
The Control Module for Emergency Call Module and Communication Unit -J949- is installed under the right front seat.
Removing
-- Turn off the ignition and all electrical consumers and remove the ignition key.
-- Move the right front seat into its highest position and the move it all the back.
-- Remove the cover under the seat in the direction of the -arrow-.
-- Release and disconnect the connectors from the Control Module for Emergency Call Module And Communication Unit -J949-.
-- Remove the Control Module for Emergency Call Module And Communication Unit -J949- -1- from the foam insert -2-.
Installing
Install in reverse order of removal.
NO RELATED
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.