Audi Q4 e-tron (2022 – 2024) – fuse and relay box diagram
Year of production: 2022, 2023, 2024
The Audi Q4 e-tron, a battery-electric compact luxury crossover, has been available since 2022. In this article, you will find fuse box diagrams for the 2022, 2023 and 2024 Audi Q4 e-tron, along with information on the locations of the fuse panels within the vehicle and details about the function of each fuse (fuse layout) and relay.
Passenger compartment
Fuse Box Location
The fuses are located on the left side of the cockpit, behind a cover.(1- LHD, 2-RHD)
Fuse Box Diagram (-SC-)
Assignment of the fuses and relays in the instrument panel (holder C)
| № | 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 |
| SC47 | 10A | Electronic Damping Control Module |
| SC48 | 7.5A | USB Charging Socket 1 |
| SC49 | – | – |
| SC50 | – | – |
| SC51 | – | – |
| SC52 | 20A | 12V Socket 12V Socket 2 12V Socket 3 |
| SC53 | – | – |
| SC54 | – | – |
| SC55 | – | – |
| SC56 | – | – |
| SC57 | – | – |
| SC58 | – | – |
| SC59 | 7.5A | Seat Occupied Recognition Control Module (US) Sockets Relay Automatic Day/Night Interior Mirror |
| SC60 | 10A | Diagnostic connection |
| SC61 | 5A | 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: |
| D | 15A | LHD: Front Passenger’s Seat Adjustment Control Head Front passenger seat switch module RHD: |
| R1 | Sockets Relay | |
| R2 | Terminal 15 power supply relay | |
| R3 | Rear window defogger relay |
Engine Compartment Fuse Box
Fuse Box Location
Fuse Box Diagram (-SB-)
Assignment of the fuses in the engine compartment (holder B)
| № | Amps | Function/Component |
|---|---|---|
| SB1 | – | – |
| SB2 | 7.5A | ABS Control Module ESC Control Module Electromechanical Steering Main Relay |
| SB3 | 10A | Voltage Converter High voltage battery charger 1 Electric Drive Power and Control Electronics Electric Drive Power and Control Electronics 2 |
| SB4 | 30A | Front Left Headlamp |
| SB5 | 30A | Front Right Headlamp |
| SB6 | 7.5A | Distance Regulation Control Module |
| SB7 | – | – |
| SB8 | – | – |
| SB9 | 15A | Horn Relay |
| SB10 | 30A | Wiper Motor Control Module |
| SB11 | 7.5A | A/C Relay Air Quality Sensor Ionizer |
| SB12 | 7.5A | Engine Sound Generator Module 1 |
| SB13 | 25A | ABS Control Module ESC Control Module |
| SB14 | – | – |
| SB15 | 40A | ABS Control Module ESC Control Module |
| SB16 | 50A | Radiator Fan |
| SB17 | 30A/40A | Through 11.2021; from 07.2022: Windshield Defogger |
| SB18 | 30A | 11.2021-07.2022: Windshield Defogger |
| SB19 | – | – |
| SB20 | – | – |
| SB21 | – | – |
| SB22 | – | – |
| SB23 | 10A | Engine Control Module (ECM) |
| SB24 | 5A | Radiator Fan |
| SB25 | 10A/15A | High voltage battery coolant pump Heating Element (PTC) 3 |
| SB26 | 10A/15A | Low Temperature Circuit Coolant Pump Radiator Blind Adjustment Motor |
| SB27 | – | – |
| SB28 | – | – |
| SB29 | – | – |
| SB30 | – | – |
| SB31 | – | – |
| SB32 | 50A | Brake booster |
| R1 | Main Relay | |
| R2 | Windshield Heater Relay | |
| R3 | Horn Relay | |
| R4 | – | |
| R5 | – | |
| R6 | A/C Relay |
Fuse Panel A (-SA-)
Assignment of the fuses in the engine compartment (holder A)
| № | Amps | Function/Component |
|---|---|---|
| 508 | Battery | |
| SA1 | 350A | Voltage Converter |
| SA2 | 80A | Battery Monitoring Control Module Power Steering Control Module |
| SA3 | 100A | Fuse Panel C -SC- |
| SA4 | 100A | Fuse Panel C -SC- |
| SA5 | – | – |
| SA6 | 125A | Fuse Panel B -SB- |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.