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.
Front Information Display Control Head, Information Electronics Control Module 1
J685
Front Information Display Control Head
J794
Information Electronics Control Module 1
J1121
Driver Assistance Systems Control Module
T2ah
2-Pin Connector, Black
T9a
9-Pin Connector, Black
T12a
12-Pin Connector, Gray
T16e
16-Pin Connector, Black
T16ex
16-Pin Connector, Black
T81a
81-Pin Connector, Black
TCPM
Coupling Point on Instrument Panel, Center
213
Ground Connection (in Instrument Panel Wiring Harness)
687
Ground Connection 1 on Center Tunnel
E145
Connection 1 (CAN Bus Information Electronics Control Module 1, High)
E147
Connection 1 (CAN Bus Information Electronics Control Module 1, Low)
*
Depending on Equipment
*2
For Vehicles with External Audio Source Connection - Audi Music Interface
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.