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.
Digital Sound System Control Module, Information Electronics Control Module 1, Control Module For Emergency Call Module And Communication Unit, Cellular Telephone Amplifier
J525
Digital Sound System Control Module
J794
Information Electronics Control Module 1
J949
Control Module for Emergency Call Module and Communication Unit
R86
Cellular Telephone Amplifier
T4ci
4-Pin Connector, Black
T12k
12-Pin Connector, Blue
T12l
12-Pin Connector, Green
T12m
12-Pin Connector, Gray
T36a
36-Pin Connector, Black
T38a
38-Pin Connector, Black
B605
Connection 1 (in Interior Wiring Harness)
*
Refer to Applicable Communication Wiring Diagram
*2
Refer to Applicable Sound System Wiring Diagram
*3
Refer to the Applicable Cell Phone System Wiring Diagram
*4
Audio Bus Data Bus Wire
*5
For Vehicles Without an Amplifier
*6
For Vehicles with an Amplifier
*7
Refer to Applicable Windshield Projection 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.