Audi Q4 e-tron | 2021-2025 | Fuse Box Diagrams and Locations
The Audi Q4 e-tron, a battery-electric compact luxury crossover SUV, has been available from 2021 to the present. Combining cutting-edge electric vehicle technology, a sleek design, and premium features, the Q4 e-tron represents Audi’s commitment to sustainability and luxury in the EV market.
In this article, you will find detailed fuse box diagrams for Audi Q4 e-tron models produced in 2021, 2022, 2023, 2024 and 2025. These diagrams provide critical insights into the vehicle’s electrical systems, including the assignment of each fuse (fuse layout) and relay. This information is essential for diagnosing electrical issues, performing maintenance, or completing necessary repairs.
This guide serves as a comprehensive resource for understanding the electrical system of the Audi Q4 e-tron, equipping owners and technicians with the knowledge needed to maintain the reliability, functionality, and performance of this innovative electric luxury SUV.
Right-hand drive vehicles: The fuses are located in the glove compartment, behind a cover.
Fuse Box Diagram (-SC-)
Assignment of the fuses in the instrument panel
№
Amps
Function/Component
SC1
–
SC2
7.5A
Airbag Control Module
SC3
25A
Towing Recognition Control Module
SC4
7.5A
Driver assistance systems front camera
SC5
25A
Vehicle Electrical System Control Module Left Taillight
SC6
30A
Vehicle Electrical System Control Module Interior Lighting
SC7
30A
Heating and Air Conditioning Control Module Seat Heating
SC8
30A
Roof System Control Module
SC9
30A
Driver’s Door Control Module (LHD) Front Passenger’s Door Control Module (RHD) Rear Door Control Module, Driver’s Side (LHD) Rear Front Passenger’s Door Control Module (RHD)
SC10
Left/center Tail Light
SC11
15A
Towing Recognition Control Module
SC12
–
–
SC13
40A
Vehicle Electrical System Control Module Central Locking Windshield Washer System
SC14
40A
Digital Sound System Control Module
SC15
–
–
SC16
Power Supply for Measuring Lead Set
SC17
5A
Parking Aid Control Module Lane Change Assistance Control Module Lane Change Assistance Control Module 2 Toll registration sensor (from 07.2022) Exterior Mirrors
SC18
5A
Power rear lid opener sensor Access/start authorization control module Electronic Steering Column Lock Control Module Rear lid opener control module Burglary Protection Control Module 2 Burglary Protection Control Module 3 Burglary Protection Control Module 4 Burglary Protection Control Module 5 Engine Sound Generator Module 2
SC19
5A
Control module for emergency call module and communication unit Instrument Cluster
SC20
7.5A
TV Tuner (from 11.2021) Amplifier for Telephone USB Connection 1 Chip Card Reader Control Module (from 11.2021, Japan) Mobile Device Charger 1 Android Operating System Control Module (through 07.2022)
SC21
7.5A
Rear Peripheral Camera Peripheral Camera Control Module Luggage Compartment Lid Release
SC22
15A
Engine Control Module (ECM)
SC23
5A
Internet access control module (through 07.2022)
SC24
Right/center Tail Light
SC25
25A
Left Front Seat Belt
SC26
30A
Driver’s Door Control Module (RHD) Front Passenger’s Door Control Module (LHD) Rear Door Control Module, Driver’s Side (RHD) Rear Front Passenger’s Door Control Module (LHD)
SC27
25A
Right Front Seat Belt
SC28
10A
High voltage battery 1 High Voltage System Maintenance Connector
SC29
15A
Towing Recognition Control Module
SC30
20A
Control Module for Information Electronics 1 Infotainment System
SC31
25A
Towing Recognition Control Module
SC32
25A
Vehicle Electrical System Control Module Right Tail Light
SC33
–
–
SC34
15A
Heating and Air Conditioning Control Module
SC35
–
–
SC36
40A
Fresh Air Blower Control Module
SC37
30A
Rear Lid Control Module
SC38
–
–
SC39
10A
Steering Column Electronic Systems Control Module
SC40
10A
Alarm Horn
SC41
5A
Data Bus On Board Diagnostic Interface
SC42
7.5A
Garage Door Opener Control Module Selector Lever
SC43
7.5A
Front A/C display control head Vehicle Interior Carbon Dioxide Concentration Sensor Vehicle Interior Temperature Sensor Rear window defogger relay
SC44
7.5A
Control unit 1 for driving and convenience functions lllumination Control Head Rain/Light Recognition Sensor Anti-Theft Alarm System Sensor Diagnostic connection Rear Interior Lamp Front roof module
SC45
5A
Steering Column Electronic Systems Control Module
SC46
7.5A
Front Information Display Control Head Driver Volume Control Windshield Projection Head Up Display Control Module
Electric Drive Power and Control Electronics Electric Drive Power and Control Electronics 2
SC62
–
–
SC63
–
–
SC64
–
–
SC65
–
–
SC66
15A
Rear Window Wiper Motor
SC67
10A
Rear Window Defogger
A
30A
US: Electric trailer brake position sensor
A
15A
Revolving roof lamp and siren control module Driving School Operation Relay Driving Assistance Control Unit Control Module Mobile two-way radio charging socket Mobile two-way radio charging socket 2
B
10A
Special Signals Control Head Driving Assistance Control Unit Control Module
C
15A
LHD: Driver’s Seat Adjustment Control Head Memory Seat/Steering Column Adjustment Control Module Driver seat switch module
RHD: Driver’s Seat Adjustment Control Head Memory Seat/Steering Column Adjustment Control Module Driver seat switch module
D
15A
LHD: Front Passenger’s Seat Adjustment Control Head Front passenger seat switch module
RHD: Driver’s Seat Adjustment Control Head Memory Seat/Steering Column Adjustment Control Module Driver seat switch module
