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, Control Module For Emergency Call Module And Communication Unit
J525
Digital Sound System Control Module
J794
Information Electronics Control Module 1
J949
Control Module for Emergency Call Module and Communication Unit
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
T20c
20-Pin Connector, Naturally Cloudy
T38a
38-Pin Connector, Black
TALU
Coupling Point on Left A-Pillar, Bottom
TARU
Coupling Point on Right A-Pillar, Bottom
*
Refer to Applicable Sound System Wiring Diagram
*2
For LHD Vehicles
*3
For RHD Vehicles
*4
Running Change
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.