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.
Information Electronics Control Module 1, Microphone Unit In Front Roof Module
J533
Data Bus on Board Diagnostic Interface
J794
Information Electronics Control Module 1
R140
Left Front Microphone
R141
Right Front Microphone
R164
Microphone Unit in Front Roof Module
T4bc
4-Pin Connector, Purple
T4dz
4-Pin Connector, Gray
T4eo
4-Pin Connector, Blue
T12b
12-Pin Connector, Blue
T17c
17-Pin Connector, Red
T17cx
17-Pin Connector, Red
T17p
17-Pin Connector, Black
T17px
17-Pin Connector, Black
TALU
Coupling Point on Left A-Pillar, Bottom
TARU
Coupling Point on Right A-Pillar, Bottom
*
For Vehicles Without Emergency Call Module
*2
For LHD Vehicles
*3
Refer to Applicable Emergency Call Module Wiring Diagram
*4
For Vehicles with Emergency Call Module
*5
For Vehicles with Mobile Online Services
*6
Depending on Equipment
*7
For RHD Vehicles
*8
Running Change
*9
Refer to Applicable Wiring Diagram
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.