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Home >> Audi >> 2025 >> Q4 e-tron Sportback Premium Plus >> Repair and Diagnosis (Single Page) >> Quick Lookups >> Wiring Diagrams >> OEM Wiring Diagrams Communication >> OEM Wiring Diagrams Communication >> Data Bus On Board Diagnostic Interface, Control Module For Emergency Call Module And Communication Unit, Emergency Call Module Speaker

Data Bus On Board Diagnostic Interface, Control Module For Emergency Call Module And Communication Unit, Emergency Call Module Speaker

GWWF4B-080030424Courtesy of AUDI OF AMERICA, LLC

J533 

Data Bus on Board Diagnostic Interface

J949 

Control Module for Emergency Call Module and Communication Unit

R335 

Emergency Call Module Speaker

T2fe 

2-Pin Connector, Black

T3be 

3-Pin Connector, Black

T3bv 

3-Pin Connector, Black, Different Connector Color Possible

T3by 

3-Pin Connector, Black

T36a 

36-Pin Connector, Black

T40a 

40-Pin Connector, Black

B651 

Speaker Connection 1 (in Main Wiring Harness)

B652 

Speaker Connection 2 (in Main Wiring Harness)

B950 

Connection 1 (CAN Bus Connectivity High) in Main Wiring Harness

B951 

Connection 2 (CAN Bus Connectivity High) in Main Wiring Harness

B952 

Connection 3 (CAN Bus Connectivity High) in Main Wiring Harness

B955 

Connection 1 (CAN Bus Connectivity Low) in Main Wiring Harness

B956 

Connection 2 (CAN Bus Connectivity Low) in Main Wiring Harness

B957 

Connection 3 (CAN Bus Connectivity Low) in Main Wiring Harness

* 

Refer to Applicable Wiring Diagram for Data Bus Networking

*2 

Through June 2024

*3 

For Vehicles Without an Amplifier

*4 

For Vehicles with an Amplifier

*5 

From June 2024