Ford Expedition (2018 – 2021) Fuse Box Location & Diagrams
Modern SUVs like the 2018–2021 Ford Expedition are essentially computers on wheels, packed with advanced electronics—from the SYNC infotainment system to the heavy-duty towing modules. When a USB port stops charging or a headlight goes dark, the culprit is often a simple blown fuse. Knowing exactly where to look can save you an expensive trip to the dealership. This generation of the Expedition features two primary fuse hubs: the Passenger Compartment Fuse Panel (located in the interior kick panel) and the Under-Hood Power Distribution Box. In this guide, we break down every diagram, identify critical fuse ratings, and provide the step-by-step instructions you need to restore power to your vehicle safely and efficiently.
Fuse Box Locations
Passenger Compartment Fuse Box
The fuse box is in the passenger compartment under the dashboard. You may need to remove a trim panel to access the box.
Engine Compartment Fuse Box
The power distribution box is in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads.
Passenger Compartment Fuse Box Diagram
Ford Expedition (2018 and 2019)
The fuses are coded as follows:
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 1 | — | Not used. |
| 2 | 7.5A 1 | Driver seat switch. |
| 3 | 20A1 | Driver door unlock. |
| 4 | 5A1 | Trailer brake controller. |
| 5 | 20A1 | Speaker amplifier. |
| 6 | 10A2 | Not used (spare). |
| 7 | 10A2 | Not used (spare). |
| 8 | — | Not used. |
| 9 | 10A2 | Rear seat entertainment module. Head up display. |
| 10 | 5A2 | Wireless accessory charger module. Hands free liftgate module. Power liftgate module. |
| 11 | 5A2 | Keypad. Combined sensor module. |
| 12 | 7.5A2 | Cluster. Electronic control panel. Smart datalink connector logic. |
| 13 | 7.5A2 | Gear shift module. Steering column control module. |
| 14 | 10A2 | Extended power module. Brake switch. |
| 15 | 10A2 | Smart datalink connector power. |
| 16 | 15A1 | Liftglass release. |
| 17 | 5A2 | Telematics control unit – modem. |
| 18 | 5A2 | Ignition switch. Key inhibit solenoid. Push button start switch. |
| 19 | 7.5A2 | Transmission control switch. Gearshift module. |
| 20 | 7.5A2 | Not used. |
| 21 | 5A2 | Humidity and in–car temperature sensor. |
| 22 | 5A2 | Electrochromatic mirror. Second row heated seat module. |
| 23 | 10A1 | Moonroof logic. Inverter. Power window switch. Power mirror switch. |
| 24 | 20A1 | Central lock unlock |
| 25 | 30A1 | Left front door zone module. |
| 26 | 30A1 | Right front door zone module. |
| 27 | 30A1 | Moonroof. |
| 28 | 20A1 | Stereo amplifier. |
| 29 | 30A1 | Left rear door zone module. |
| 30 | 30A1 | Right rear door zone module. |
| 31 | 15A1 | Adjustable pedals. |
| 32 | 10A1 | SYNC Drive mode switch module. 4×4 switch. Radio frequency transceiver module. Rear heating, ventilation and air condi- tioning control module. |
| 33 | 20A1 | Audio control module. |
| 34 | 30A1 | Run/start relay. |
| 35 | 5A1 | Extended power mode module. |
| 36 | 15A1 | Image processing module A. Automated park assist module. Continuous control damping module. |
| 37 | 20A1 | Heated steering wheel. |
| 38 | 30A Circuit Breaker | Left rear power window. Right rear power window. |
Ford Expedition (2020 and 2021)
The fuses are coded as follows:
| Fuse Number | Fuse Rating | Protected Component |
| 1 | — | Not used. |
| 2 | 10A | Driver seat switch. |
| 3 | 7.5A | Driver door unlock. |
| 4 | 20A | Speaker amplifier. |
| 5 | — | Not used. |
| 6 | 10A | Smart datalink connector logic. |
| 7 | 10A | Rear audio control module. |
| 8 | 5A | Wireless accessory charger. Hands-free liftgate module. |
| 9 | 5A | Keypad. Combined sensor module. |
| 10 | — | Not used. |
| 11 | — | Not used. |
| 12 | 7.5A | Instrument cluster. |
| 13 | 7.5A | Steering column control module. Smart datalink connector logic. |
| 14 | 15A | Brake switch. |
| 15 | 15A | SYNC. |
| 16 | — | Not used. |
| 17 | — | Not used. |
| 18 | 7.5A | Key inhibit solenoid. Gearshift module. |
| 19 | 5A | Telematics control unit module. |
| 20 | 5A | Ignition switch. |
| 21 | 5A | Humidity and in-car temperature sensor. |
| 22 | 5A | Electrochromic mirror. Second row heated seat module. |
| 23 | 30A | Power window switch. Power mirror switch. Left-hand front door zone module. |
| 24 | 30A | Moonroof logic. |
| 25 | 20A | Speaker amplifier 2. |
| 26 | 30A | Right-hand front door zone module. |
| 27 | 30A | Left-hand rear door zone module. |
| 28 | 30A | Right-hand rear door zone module. |
| 29 | 15A | Adjustable pedals. |
| 30 | 5A | Trailer tow control module. |
| 31 | 10A | Rear climate control module. Drive mode switch module. Terrain management switch. Radio frequency transceiver module. 4×4 switch. |
| 32 | 20A | Audio control module. |
| 33 | — | Not used. |
| 34 | 30A | Run/start relay. |
| 35 | 5A | Not used (spare). |
| 36 | 15A | Image processing module A. Automated park assist module. Continuous control damping module. |
| 37 | 20A | Heated steering wheel. |
| 38 | 30A Circuit Breaker | Left-hand rear power window. Right-hand rear power window. |
Engine Compartment Fuse Box Diagram
Ford Expedition (2018 and 2019)
The high-current fuses are coded as follows:
| Fuse Number | Fuse Rating | Protected Component |
| 1 | 25A1 | Horn. |
| 2 | 50A2 | Fan 1. |
| 3 | 30A2 | Front wiper motor. |
| 4 | — | Not used. |
| 5 | 30A2 | Starter relay. |
| 6 | 20A2 | Power point 1. |
| 8 | 20A2 | Power point 2. |
| 10 | 5A1 | Rain sensor. |
| 12 | — | Not used. |
| 13 | 10A1 | 4×4 module. Heated backlite. Heated mirror relay coil. Heated wiper park relay coil. Transmission isolation relay coil. |
| 14 | 15A1 | Transmission control module. |
| 15 | 15A1 | Voltage quality module run/start power. Blindspot information system. Head Up Display. Image processing module B. Front view camera. Rear view camera. Cruise control module. |
| 16 | 10A1 | Powertrain control module (PCM) run/ start feed. |
| 17 | 10A1 | Antilock brake system run/ start feed. |
| 18 | 10A1 | Electronic power assist steering run / start feed. |
| 19 | — | Not used. |
| 20 | 40A2 | Front blower. |
| 21 | 40A2 | Passenger seat motors. |
| 22 | 20A1 | Not used. |
| 23 | 10A1 | Alternator A-line. |
| 24 | 30A2 | Trailer brake control module. |
| 25 | 50A2 | Body control module power 1. |
| 26 | 50A2 | Electronic fan 3. |
| 27 | 40A2 | Driver seat motors. |
| 28 | 15A1 | Rear heated seats. |
| 29 | 10A1 | Integrated wheel end solenoid. |
| 30 | 25A2 | Trailer tow class II-IV battery charge. |
| 31 | 50A2 | Power folding seat module. |
| 32 | 10A1 | A/C clutch. |
| 33 | — | Not used. |
| 34 | — | Not used. |
| 35 | 20A1 | Vehicle power 4. |
| 36 | 10A1 | Vehicle power 3. |
| 37 | 25A1 | Vehicle power 2. |
| 38 | 25A1 | Vehicle power 1. |
| 39 | — | Not used. |
| 41 | 50A2 | Inverter. |
| 43 | 20A2 | Trailer Tow Light Module Class II-IV. |
| 45 | 20A2 | Front/rear washer pump. |
| 46 | 7.5A1 | Family entertainment system. |
| 47 | — | Not used. |
| 48 | — | Not used. |
| 49 | — | Not used. |
| 50 | 30A2 | Fuel pump. |
| 51 | 20A2 | Power point 3. |
| 52 | 50A2 | Body control module (BCM) voltage quality module (VQM). |
| 53 | 25A2 | Trailer tow park lamps relay. |
| 54 | 40A2 | Electronic limited slip differential relay. |
| 55 | 40A2 | AUX blower. |
| 56 | 20A2 | Power point 4. |
| 58 | 5A1 | Not used (spare). |
| 59 | — | Not used. |
| 60 | 5A1 | Not used (spare). |
| 61 | 25A1 | Not used (spare). |
| 62 | 25A1 | Not used (spare). |
| 63 | 25A1 | 4×4 module. |
| 64 | — | Not used. |
| 65 | — | Not used. |
| 66 | — | Not used. |
| 67 | — | Not used. |
| 69 | — | Not used. |
| 70 | 40A2 | Anti-lock brake system / parking brake module. |
| 71 | 25A2 | 4×4 module. |
| 72 | — | Not used. |
| 73 | — | Not used. |
| 74 | 10A1 | Trailer tow backup lamps. |
| 75 | — | Not used. |
| 76 | 50A2 | Body control module power 2. |
| 77 | 30A2 | Climate controlled (Heated/Vented) seat module. |
| 78 | 20A1 | Not used (spare). |
| 79 | — | Not used. |
| 80 | 10A1 | Heated wiper park. |
| 81 | — | Not used. |
| 82 | — | Not used. |
| 83 | 15A1 | Transmission control module power. |
| 84 | — | Not used. |
| 85 | — | Not used. |
| 86 | 5A1 | USB smart charger 5. |
| 87 | 5A1 – | USB smart charger 3. (2018) Not Used. (2019) |
| 88 | 10A1 | Multi-contour seats relay. |
| 89 | 40A2 | Power running boards. |
| 91 | 30A2 | Power liftgate module. |
| 93 | 15A1 | Heated mirrors. |
| 94 | 5A1 | USB smart charger 1. |
| 95 | 10A1 | USB smart charger 2. |
| 96 | 30A2 | Rear wiper motor relay. |
| 97 | 40A2 | Intercooler puller relay fan. |
| 98 | 15A2 | Transmission oil pump. |
| 99 | 40A2 | Heated backlite. |
| 100 | 20A2 | Power point 5. |
| 101 | 25A2 | Fan 2. |
| 102 | — | Not used. |
| 103 | — | Not used. |
| Fuse Number | Fuse Rating | Protected Component |
| 104 | — | Not used. |
| 105 | — | Not used. |
| Relay Number | Protected Component |
| R02 | Electric fan 2. (2018) Powertrain Control Module (2019) |
| R05 | Powertrain Control Module. (2018) Electric fan 2 (2019) |
Ford Expedition (2020 and 2021)
The high-current fuses are coded as follows:
| Fuse Number | Fuse Rating | Protected Component |
| 1 | 25A | Horn. |
| 2 | 50A | Fan 1. |
| 3 | 30A | Front wiper motor. |
| 4 | 50A | Inverter. |
| 5 | 30A | Starter relay. |
| 6 | 20A | Power point 1. |
| 8 | 20A | Power point 2. |
| 10 | 5A | Rain sensor. |
| 12 | 20A | Trailer tow light module. |
| 13 | 10A | 4×4 module. Heated backlight relay coil. Heated mirror relay coil. Heated wiper park relay coil. Transmission isolation relay coil. |
| 14 | 15A | Not used (spare). |
| 15 | 15A | Voltage quality module run/start power. Blindspot information system. Image processing module B. Front view camera. Rear view camera. Cruise control module. |
| 16 | 10A | Powertrain control module run/start feed. |
| 17 | 10A | Anti-lock brake system run/start feed. |
| 18 | 10A | Electronic power assist steering run/start feed. |
| 19 | — | Not used. |
| 20 | 40A | Front blower. |
| 21 | 40A | Passenger seat motors. |
| 22 | — | Not used. |
| 23 | 10A | Alternator A-line. |
| 24 | 30A | Trailer brake control module. |
| 25 | 50A | Body control module power 1. |
| 26 | 50A | Electronic fan 3. |
| 27 | 40A | Driver seat motors. |
| 28 | 15A | Rear heated seats. Rear seat climate control module. |
| 29 | 10A – | Integrated wheel end solenoid. (2021) Not Used. (2022) |
| 30 | 25A | Trailer tow class II-IV battery charge. |
| 31 | 50A | Power folding seat module. |
| 32 | 10A | A/C clutch. |
| 33 | — | Not used. |
| 34 | — | Not used. |
| 35 | 20A | Vehicle power 4. |
| 36 | 10A | Vehicle power 3. |
| 37 | 25A | Vehicle power 2. |
| 38 | 25A | Vehicle power 1. |
| 39 | — | Not used. |
| 41 | — | Not used. |
| 43 | — | Not used. |
| 45 | 20A | Front and rear washer pump. |
| 46 | 7.5A | Family entertainment system. |
| 47 | — | Not used. |
| 48 | — | Not used. |
| 49 | — | Not used. |
| 50 | 30A | Fuel pump. |
| 51 | 20A | Power point 3. |
| 52 | 50A | Body control module voltage quality module. |
| 53 | 25A | Trailer tow park lamps relay. Trailer tow control module. |
| 54 | 40A | Electronic limited slip differential relay. |
| 55 | 40A | Auxiliary blower. |
| 56 | 20A | Power point 4. |
| 58 | 5A | Not used (spare). |
| 59 | — | Not used. |
| 60 | 5A | Not used (spare). |
| 61 | 25A | Not used (spare). |
| 62 | 25A | Not used (spare). |
| 63 | 25A | 4×4 module. |
| 64 | — | Not used. |
| 65 | — | Not used. |
| 66 | — | Not used. |
| 67 | — | Not used. |
| 69 | 30A | Power liftgate module. |
| 70 | 40A | Anti-lock brake system and parking brake module. |
| 71 | 25A | 4×4 module. |
| 72 | — | Not used. |
| 73 | — | Not used. |
| 74 | 10A | Trailer tow backup lamps. |
| 75 | — | Not used. |
| 76 | 50A | Body control module power 2. |
| 77 | 30A | Climate control seat module. |
| 78 | — | Not used. |
| 79 | — | Not used. |
| 80 | 10A | Heated wiper park. |
| 81 | — | Not used. |
| 82 | — | Not used. |
| 83 | 15A | Not used (spare). |
| 84 | — | Not used. |
| 85 | — | Not used. |
| 86 | 5A | USB smart charger 5. |
| 87 | 5A | USB smart charger 3. |
| 88 | 10A | Multi-contour seats relay. |
| 89 | 40A | Power running boards. |
| 91 | — | Not used. |
| 93 | 15A | Heated mirrors. |
| 94 | 5A | USB smart charger 1. |
| 95 | 10A | USB smart charger 2. |
| 96 | 30A | Rear wiper motor relay. |
| 97 | 40A | Not used (spare). |
| 98 | 15A | Transmission oil pump. |
| 99 | 40A | Heated backlight. |
| 100 | 20A | Power point 5. |
| 101 | 25A | Fan 2. |
| 102 | — | Not used. |
| 103 | — | Not used. |
| 104 | — | Not used. |
| 105 | — | Not used. |
| Relay Number | Protected Component |
| R02 | Powertrain control module. |
| R05 | Electric fan 2. |
