Audi TT 2021 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located underneath the instrument panel, to the left of the steering column.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Functions |
| 1 | Engine components, exhaust treatment |
| 4 | Infotainment control panel, sound system |
| 5 | Diagnostic connection |
| 6 | Automatic transmission selector lever |
| 7 | Climate control systems control panel, rear window heating, tire pressure monitoring |
| 8 | Parking brake switch, light switch, rain/light sensor, roof electronics control module, diagnostic interface, emergency call and communication control module, consumption monitoring |
| 9 | Steering column electronics |
| 10 | Vehicle positioning |
| 11 | All wheel drive control module, vehicle electrical system control module |
| 12 | Sound system, infotainment system |
| 14 | Climate control system blower |
| 15 | Electronic steering column lock |
| 16 | Exterior antenna, infotainment system |
| 17 | Instrument cluster, emergency call and communication control module |
| 18 | Rearview camera |
| 19 | Convenience access and start authorization control module |
| 20 | Driver's and front passanger's lumbar suport |
| 22 | Front passenger's side neck heating (Roadster) |
| 24 | Right vehicle electrical system control module |
| 25 | Driver's side power window |
| 26 | Seat heating |
| 27 | Vehicle electrical system control module |
| 28 | Audi music interface, USB connection |
| 29 | Luggage compartment lighting |
| 32 | Driver assistance systems |
| 33 | Airbag, front passenger's seat electronics, roof electronics control module |
| 34 | Hold assist button, interior sound, tail light switch, climate control system pressure sensor, neck heating, sockets |
| 35 | Diagnosis, headlight range control, air quality sensor, rearview mirror, cockpit switch module |
| 36 | Right headlight |
| 37 | Left headlight |
| 38 | Engine control module, Electronic Stabilization Control (ESC) |
| 39 | Front passenger's side power window |
| 40 | Cigarette lighter, sockets |
| 41 | Fuel leak diagnosis |
| 42 | Vehicle electrical system control module, central locking |
| 44 | All wheel drive control module |
| 45 | Driver's side seat adjustment |
| 46 | Driver's side neck heating (Roadster) |
| 49 | Engine start, clutch sensor |
| 52 | Control module for suspension control |
| 53 | Rear window defogger |
Engine compartment fuse box:
| Fuse/Relay N° | Functions |
| 3 | Engine control module |
| 4 | Engine components, engine cooling, secondary air pump |
| 5 | Engine components, tank system |
| 6 | Brake light switch |
| 7 | Engine components |
| 8 | Heat oxygen sensor |
| 9 | Engine components, exhaust door |
| 10 | Fuel injectors, fuel control module |
| 13 | Transmission fluid pump |
| 15 | Horn |
| 16 | Ignition coils |
| 17 | Suppressor |
| 18 | Diagnostic interface, battery monitoring, garage door opener antenna |
| 19 | Windshield wipers |
| 20 | Anti-theft alarm system |
| 21 | Automatic transmission control module |
| 22 | Terminal 50 diagnosis (engine control module) |
| 23 | Engine start |
| 31 | Engine components (5 cylinder) |
