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.
Data Bus On Board Diagnostic Interface, Information Electronics Control Module 1, Left Front Microphone, Right Front Microphone, 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
T4dc
4-Pin Connector, Gray
T4pa
4-Pin Connector, Blue
T54b
54-Pin Connector, Blue
*
For LHD Vehicles
*2
Not for Vehicles with Russia Equipment
*3
For Vehicles with Russia Equipment
*4
For RHD Vehicles
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.