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, Microphone Unit In Front Roof Module, Digital Sound System Fuse
J525
Digital Sound System Control Module
J794
Information Electronics Control Module 1
R74
Interior Microphone
R164
Microphone Unit in Front Roof Module
SR4
Relay and Fuse Panel 4
S358
Digital Sound System Fuse
T2ek
2-Pin Connector, Black
T2ie
2-Pin Connector, Black
T4eb
4-Pin Connector, Black
T12a
12-Pin Connector, Gray
T17b
17-Pin Connector, Blue
T17bx
17-Pin Connector, Blue
T38a
38-Pin Connector, Black
TALU
Coupling Point on Left A-Pillar, Bottom
TCPM
Coupling Point on Instrument Panel, Center
50
Ground Connection in Luggage Compartment, Left
B159
Diagnostic Connection (in Interior Wiring Harness)
B444
OBD Connection 1 (in Main Wiring Harness)
*
Refer to Applicable Wiring Diagram for Fuse Positions
*2
Refer to Applicable Wiring Diagram for Infotainment Most Bus
*3
For Vehicles with TV Tuner
*4
For Vehicles Without TV Reception
*5
Fiber Optic Cable
*6
For Vehicles with Emergency Call Module
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.