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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSAUDI2012A8 QUATTRO SEDAN (4H2) V8-4.2L (CDRA)REPAIR AND DIAGNOSISDIAGRAMSCONNECTOR VIEWSNAVIGATION SYSTEM
2012 Audi A8 Quattro Sedan (4H2) V8-4.2L (CDRA)
Navigation System
2012 Audi A8 Quattro Sedan (4H2) V8-4.2L (CDRA)SECTION Navigation System
Navigation, Information Electronics Control Module 1 (J794) (7T6) Connectors
Information Electronics Control Module 1 (J794)
1. Not Assigned
2. Connection block with four connectors
3. MOST bus (T2ak)
4. FBAS input (T2ai) from the DVD changer (R161)
5. 4 pin connector (T4co) to the front information display control head (J685)
6. 4 pin connector (T4cn) to the external audio source connection (R199)
7. GPS connection from roof antenna (R216)
• Unlisted connector terminals are not used.
2 - Connection block with four connectors
A - 8 Pin Multi-Pin Connector (T8q)
3 Wake UP to multimedia system control head (E380)
6 Res MU to multimedia system control head
7 Ring break diagnostic cable
B - 12 Pin Connector (T12e)
2 Microphone input wire (+) from microphone unit in front roof module (R164) ( right front microphone (R141) )
3 Microphone input wire (-) from the microphone unit in front roof module (right front microphone)
5 FBAS wire (-) from rearview camera system control module (J772) / peripheral camera control module (J928)
8 Microphone input wire (+) from the microphone unit in front roof module ( left front microphone (R140) )
9 Microphone input wire (-) from microphone unit in front roof module (left front microphone)
11 FBAS wire (+) from the rearview camera system control module (J772) / peripheral camera control module (J928)
D - 8 Pin Connector (T8p)
10 Data to multimedia system control head (E380)
11 Data to multimedia system control head
12 Terminal 31
14 Res BT from multimedia system control head
15 Terminal 30
3 - MOST Bus (T2ak)
1. Input
2. Output
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.