Audi TT 2018 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 | Power top control module (Roadster) |
| 2 | Power top control module (Roadster) |
| 4 | Central computer processor (MIB-2) |
| 5 | Gateway |
| 6 | Selector lever (automatic transmission) |
| 7 | Climate control system controls, rear window defogger, tire pressure monitoring |
| 8 | Switch for the electromechanical parking brake, light switch, rain/light sensor, interior lighting, diagnostic connector, roof electronics |
| 9 | Steering column switch module |
| 10 | Display |
| 11 | All wheel drive clutch |
| 12 | Infotainment components |
| 13 | Control module for suspension control |
| 14 | Climate control system blower |
| 15 | Electronic steering column lock |
| 16 | Infotainment system components, safety belt microphone (Roadster) |
| 17 | Instrument cluster |
| 18 | Rearview camera |
| 19 | Convenience access control module |
| 20 | Power lumbar support adjustment |
| 22 | Front passenger's side neck heating (Roadster) |
| 24 | Right vehicle electrical system control module |
| 25 | Driver's side doors (for example power windows) |
| 26 | Seat heating |
| 27 | Vehicle electrical system control module |
| 28 | AMI High media port |
| 29 | Vehicle electrical system control module |
| 31 | Left vehicle electrical system control module |
| 32 | Driver assistance systems |
| 33 | Airbag |
| 34 | Socket relay, interior sound, back-up light switch, temperature sensor, oil level sensor |
| 35 | Diagnosis, headlight range control system, air quality sensor, automatic dimming rearview mirror |
| 36 | Right cornering light / right LED-headlight |
| 37 | Left cornering light / left LED-headlight |
| 38 | Engine control module, ESC control module |
| 39 | Front passenger's side doors (for example power windows) |
| 40 | Cigarette lighter, sockets |
| 41 | SCR relay and delivery unit |
| 42 | Central locking area |
| 43 | On-board computer |
| 44 | All wheel drive clutch control module |
| 45 | Power adjustable driver's side seat |
| 46 | Driver's side neck heating (Roadster) |
| 49 | Starter, clutch sensor |
| 53 | Rear window defogger |
Engine compartment fuse box:
| Fuse/Relay N° | Functions |
| 1 | ESC control module |
| 2 | ESC control module |
| 3 | Engine control module |
| 4 | Engine components, engine cooling, auxiliary heater coil relay (1+2), secondary air injection pump relay |
| 5 | Engine components, tank system |
| 6 | Brake light sensor |
| 7 | Engine components |
| 8 | Heat oxygen sensor |
| 9 | Engine components, exhaust door, glow time control module |
| 10 | Fuel injectors, fuel control module |
| 11 | Auxiliary heater heating element 2 |
| 12 | Auxiliary heater heating element 3 |
| 13 | Automatic transmission control module |
| 14 | Ignition coils (5 cylinder) |
| 15 | Horn |
| 16 | Ignition coil |
| 17 | ESC control module, engine control module |
| 18 | Terminal 30 (reference voltage) |
| 19 | Windshield wipers |
| 20 | Horn |
| 22 | Terminal 50 diagnosis |
| 23 | Starter |
| 24 | Auxiliary heater heating element 1 |
| 31 | Engine components (5 cylinder) |
| 32 | LED headlights |
| 33 | Transmission fluid pump |
