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Home >> Audi >> 2025 >> Q4 e-tron Prestige >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> OEM Wiring Diagrams Windshield Projection Head Up Display , (KS3) >> OEM Wiring Diagrams Windshield Projection Head Up Display, (KS3) >> Data Bus On Board Diagnostic Interface, Information Electronics Control Module 1, Windshield Projection Head Up Display Control Module, Fuse Panel C

Data Bus On Board Diagnostic Interface, Information Electronics Control Module 1, Windshield Projection Head Up Display Control Module, Fuse Panel C

GWWF4B-059020522Courtesy of AUDI OF AMERICA, LLC

J533 

Data Bus on Board Diagnostic Interface

J794 

Information Electronics Control Module 1

J898 

Windshield Projection Head Up Display Control Module

SC 

Fuse Panel C

SC46 

Fuse 46 (On Fuse Panel C)

T5aj 

5-Pin Connector, White

T5y 

5-Pin Connector, Naturally Cloudy

T6q 

6-Pin Connector, Black

T40a 

40-Pin Connector, Black

294 

Ground Connection 9 (in Interior Wiring Harness)

687 

Ground Connection 1 on Center Tunnel

825 

Ground Connection 18 (in Interior Wiring Harness)

B504 

Positive Connection 8 (30a) (in Interior Wiring Harness)

B750 

CAN Bus High Display and Control Connection 1

B751 

CAN Bus Low Display and Control Connection 1

B752 

CAN Bus High Display and Control Connection 2

B753 

CAN Bus Low Display and Control Connection 2

Refer to Applicable MMI (Information Electronics) Wiring Diagram

*2 

Refer to Applicable Wiring Diagram for Fuses in Vehicle Interior

*3 

Refer to Applicable Wiring Diagram for Data Bus Networking