Audi e-tron (2021-2022) – fuse and relay box
Diagrams of fuse boxes and relays – Audi e-tron
Applies to vehicles manufactured in the years:
2021, 2022.
Fuse box in passenger compartment
The fuse panel is located behind the cover in the front passenger footwell.
| Number | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | Not used |
| A2 | Not used |
| A3 | Air conditioning system, fragrance system, ionizer |
| A4 | Head-up display |
| A5 | Audi music interface;
USB port. |
| A6 | CD / DVD drive; Dashboard. |
| A7 | Steering column lock |
| A8 | Front MMI display |
| A9 | Instrument cluster |
| A10 | Volume control |
| A11 | Light switch;
Switch panels. |
| A12 | Steering column electronics |
| A13 | Not used |
| A14 | Not used |
| A15 | Steering column adjustment |
| A16 | Steering column electronics |
| Fuse panel B (black) | |
| B1 | Front seat heating |
| B2 | Air conditioning system |
| B3 | Left headlight electronics |
| B4 | Panoramic glass sunroof |
| B5 | Left front door control module |
| B6 | Sockets |
| B7 | Not used |
| B8 | Instrument panel |
| B9 | Right headlight electronics |
| B10 | Windshield washer system / Headlight washer system |
| B11 | Not used |
| B12 | Parking lock |
| Fuse panel C (red) | |
| C1 | Anti-theft alarm system |
| C2 | Powertrain control module |
| C3 | Emergency call system |
| C4 | Gear stick |
| C5 | horn |
| C6 | Parking brake |
| C7 | High voltage battery;
Battery monitoring control module. |
| C8 | Roof electronics control module |
| C9 | Not used |
| C10 | Airbag control module |
| C11 | Front left lumbar support |
| C12 | Diagnostic connector;
Light / rain sensor. |
| C13 | Not used |
| C14 | Right front door control module |
| C15 | Air conditioning system;
Body electronics. |
| C16 | Air conditioning blower |
| Fuse panel D (brown) | |
| D1 | Not used |
| D2 | Right front seat belt pretensioner |
| D3 | Not used |
| D4 | Front left seat belt pretensioner |
| D5 | Air suspension / suspension control |
| D6 | Right headlight |
| D7 | Left headlight |
| D8 | Left Rear Door Control Module |
| D9 | Right rear door control module |
| D10 | MMI Infotainment system control module |
| D11 | Driver assistance systems control module |
| D12 | Gate control module (diagnostics) |
| Fuse panel E (black) | |
| E1 | Seat electronics;
Front seat ventilation; Rearview mirror; Diagnostic connector. |
| E2 | Vehicle electrical system control module;
Diagnostic interface. |
| E3 | External sound / internal sound |
| E 4 | Not used |
| E5 | Electric drive system |
| E6 | Traffic Information (TMC) antenna |
| E7 | Active accelerator pedal |
| E8 | Night vision assistant |
| E9 | Adaptive cruise assistant |
| E10 | Not used |
| E11 | Intersection assistant;
Driver assistance systems. |
| E12 | Not used |
| E13 | Not used |
| E14 | Not used |
| E15 | USB port |
| E16 | Rear seat entertainment |
Front compartment fuse box
The fuses are located on the right side of the front compartment.
| Number | Description |
|---|---|
| 1 | Charging port door |
| 2 | Air conditioning system compressor |
| 4 | High voltage battery |
| 5 | High voltage charger |
| 6 | Thermal management |
| 7 | Electric drive system |
| 11 | High voltage charger |
| 13 | Thermal management |
| 14 | Windshield washer system control module |
| 15 | High voltage battery water pump |
| 16 | Wipers |
| 17 | Thermal management |
| 18 | Thermal management |
| 19 | Thermal management |
| 21 | Electronic Stability Control (ESC) |
Luggage compartment fuse box
The fuse box is located behind a cover under the boot mat on the left side of the rear compartment.
| Number | Description |
|---|---|
| Fuse panel (A) (black) | |
| A1 | Towbar |
| A2 | Not used |
| A3 | Passenger’s rear seat belt pretensioner |
| A4 | Driver’s side rear seat belt pretensioner |
| A5 | Trailer hitch socket |
| A6 | Left trailer hitch lamp |
| A7 | Not used |
| A8 | Rear seat heating |
| A9 | Convenience system control module, left tail light |
| A10 | Not used |
| A11 | Trunk;
Central locking of the charging port door; Comfort system control module. |
| A12 | Trunk lid |
| Fuse panel B (black) | |
| B1-B16 | Not assigned |
| Fuse panel C (black) | |
| C1 | Driver assistance systems control module |
| C2 | Telephone, roof antenna |
| C3 | Right front lumbar support |
| C4 | Side help |
| C5 | Disconnect the service |
| C6 | Tire pressure monitoring system |
| C7 | Additional air conditioning |
| C8 | External antenna |
| C9 | Air conditioning system rear control panel |
| C10 | Television tuner;
Data exchange and telematics control module. |
| C11 | Virtual exterior mirrors;
Convenient access and start authorization control module. |
| C12 | Garage door opener |
| C13 | Reversing camera, peripheral cameras |
| C14 | Convenience system control module, right tail light |
| C15 | Right trailer hitch lamp |
| C16 | Not used |