Jonathan Yarden Oct 22, 2021 · 5 min. read
In this article you will find a description of fuses and relays Porsche,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2014, 2015, 2016, 2017, 2018
Fuse box on left side of dashboard
| Fuse | Fuse function | Ampere ratting [A] |
| Fuse carrier A | ||
| 1 | Adaptive Cruise Control (ACC) control unit (2014-2016) ParkAssist control unit Front camera control unit |
7,5 |
| 2 | Seat occupancy detection control unit Airbag control unit |
10 |
| 3 | HomeLink control unit (garage door opener) Air quality sensor Anti-dazzle interior mirror PSM control unit Front BCM Porsche Stability Management (PSM) control unit (2017-) Interior mirror with display (Japan; 2017-) Sound actuator for interior sound (shaker) (2017-) |
5 |
| 4 | Seat ventilation motor, front seats | 5 |
| 5 | Headlight beam adjustment Halogen headlights left/right Automatic headlights control unit |
5 |
| 6 | Bi-Xenon™ headlight, right | 7,5 |
| 7 | 2014-2016: Bi-Xenon™ headlight, left | 7,5 |
| 2017-: Bi-Xenon™ headlight, left | 5 | |
| 8 | Rear BCM Porsche Vehicle Tracking System (PVTS) control unit DME control unit |
5 |
| 9 | — | — |
| 10 | Refrigerant pressure sensor | 5 |
| 11 | Lane Change Assist (LCA) | 5 |
| 12 | Engine electrics | 15 |
| Fuse carrier B | ||
| 1 | — | — |
| 2 | — | — |
| 3 | — | — |
| 4 | — | — |
| 5 | Diagnostic socket Compass Steering column switch module and heated steering wheel Instrument cluster |
30 |
| 6 | Brake booster (trailer operation) | 30 |
| 7 | Horn | 15 |
| 8 | Driver’s door control unit | 20 |
| 9 | — | — |
| 10 | Porsche Stability Management (PSM) control unit | 30 |
| 11 | Rear left door control unit | 20 |
| 12 | Rain sensor Electric Parking Brake (EPB) Porsche Vehicle Tracking System (PVTS) control unit |
5 |
| Fuse carrier C | ||
| 1 | Blocked | — |
| 2 | Blocked | — |
| 3 | — | — |
| 4 | Driver’s seat control unit Driver’s seat adjustment control unit |
20 |
| 5 | Tank leakage diagnosis | 5 |
| 6 | Front BCM | 30 |
| 7 | Front BCM | 30 |
| 8 | Front BCM | 30 |
| 9 | Panoramic roof system | 20 |
| 10 | Front BCM | 30 |
| 11 | Panoramic roof system | 20 |
| 12 | Alarm horn | 5 |
Fuse box in right side of dashboard
| Number | Fused function | Ampere ratting [A] |
| Fuse carrier A | ||
| 1 | Diagnostic socket | 5 |
| 2 | Ignition lock | 5 |
| 3 | Light switch | 5 |
| 4 | Steering column lock | 5 |
| 5 | 2014-2016: Steering column adjustment | 5 |
| 2017-: Steering column adjustment | 15 | |
| 6 | — | — |
| 7 | Steering column switching module | 5 |
| 8 | Diagnostic socket | 5 |
| 9 | PTC coils 1 and 2 | 5 |
| 10 | Blocked | — |
| 11 | Spare fuse | 5 |
| 12 | Spare fuse | 10 |
| Fuse carrier B | ||
| 1 | — | — |
| 2 | Compass | 5 |
| 3 | Steering column switching module and heated steering wheel | 10 |
| 4 | Instrument cluster | 5 |
| 5 | Spare fuse | 20 |
| 6 | Spare fuse | 30 |
| 7 | — | — |
| 8 | Fan motor | 30 |
| 9 | Windshield wiper | 30 |
| 10 | Seat backrest adjustment, driver’s seat | 20 |
| 11 | Seat backrest adjustment, passenger’s seat | 20 |
| 12 | — | — |
Fuse box in trunk
| Number | Fused function | Ampere ratting [A] |
| Fuse carrier A | ||
| 1 | Porsche Active Suspension Management (PASM) compressor relay | 40 |
| 2 | Plug socket relay | 50 |
| 3 | Ignition supply path | 40 |
| 4 | — | — |
| 5 | — | — |
| 6 | Crash CAN terminal resistance | — |
| Fuse carrier В | ||
| 1 | Ignition relay coil Gateway |
5 |
| 2 | Trailer hitch control unit | 20 |
| 3 | Trailer hitch control unit | 20 |
| 4 | Trailer hitch control unit | 20 |
| 5 | Passenger seat control unit Passenger seat adjustment control unit |
20 |
| 6 | — | — |
| 7 | Electric parking brake (EPB) control unit | 30 |
| 8 | Rear BCM | 20 |
| 9 | Rear BCM | 20 |
| 10 | Rear BCM | 25 |
| 11 | Rear BCM | 25 |
| 12 | Tire Pressure Monitoring System (TPMS) control unit | 5 |
| Relay carrier C | ||
| 1 | Trailer | 30 |
| 2 | — | — |
| 3 | DC/DC converter for Auto Start Stop function | 30 |
| 4 | Supply for booster and overhead operating console DC/DC converter for Auto Start Stop function |
30 |
| 5 | Subwoofer | 25 |
| 6 | TV tuner | 5 |
| 7 | Electric parking brake (EPB) control unit | 30 |
| 8 | Rear control unit | 30 |
| 9 | Passenger’s door control unit | 20 |
| 10 | Telestar receiver | 5 |
| 11 | Rear right door control unit | 20 |
| 12 | Bluetooth handset charger Trunk lighting |
5 |
| Relay carrier D | ||
| 1 | — | — |
| 2 | Electric parking brake (EPB) control unit Trailer hitch control unit Rear-differential lock control unit Gateway Adaptive Cruise Control (ACC) relay (2017-) |
5 |
| 3 | Rear window wiper motor | 15 |
| 4 | Terminal 15, dashboard | 15 |
| 5 | — | — |
| 6 | — | — |
| 7 | — | — |
| 8 | Overhead operating console | 7,5 |
| 9 | Adaptive Cruise Control (ACC) control unit | 5 |
| 10 | Cigarette lighter in center console, socket in center console storage bin | 20 |
| 11 | Socket in rear center console luggage compartment socket | 20 |
| 12 | Porsche Rear Seat Entertainment, left/ right | 7,5 |
| Fuse carrier E | ||
| 1 | Air conditioning control unit, rear control unit | 15 |
| 2 | CAN adapter Porsche Communication Management (PCM) |
10 |
| 3 | — | — |
| 4 | — | — |
| 5 | — | — |
| 6 | Rear view camera control unit Surround View control unit (2017-) |
5 |
| 7 | Heated rear window relay | 25 |
| 8 | Air conditioning control unit | 30 |
| 9 | Powerlift tailgate control unit | 20 |
| 10 | Porsche Active Suspension Management (PASM) control unit | 15 |
| 11 | Rear-differential lock control unit | 10 |
| 12 | Rear-differential lock control unit | 30 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Still have questions or want to supplement the article? Discuss On Telegram