2021 FORD Transit Fuses and Fuse Box Diagram User Guide
This Guide covers 2021 FORD Transit fuses and fuse boxes. Fuse functions and locations help troubleshoot electrical faults and optimize vehicle performance. Get into the details.
2024 FORD TRANSIT VAN Review, Price, Features and Mileage (Brochure)
Video: 2021 FORD Transit Fuses
FUSE BOX LOCATIONS
Engine Compartment Fuse Box
Driver Compartment Fuse Box
The fuse box is behind the removable trim panel.
Body Control Module
Passenger Compartment Fuse Box
Pre-fuse Box
The fuse box is under the driver seat.
FUSE SPECIFICATION CHART
Engine Compartment Fuse Box
| Item | Fuse Rating | Protected Component |
| 1 | 50 A | Wipers. |
| 2 | – | Not used. |
| 3 | 40 A | All-Wheel Drive. |
| 4 | 30 A | Parking lamps. |
| 5 | 10 A | Reversing lamp. |
| 6 | – | Not used. |
| 7 | 40 A | Front blower motor. |
| Item | Fuse Rating | Protected Component |
| 8 | – | Not used. |
| 9 | 15 A | Rear door latch. |
| 10 | – | Not used. |
| 11 | 40 A | Auxiliary power point. USB port. |
| 12 | 20 A | Horn. |
| 13 | – | Not used. |
| 14 | 15 A | Vehicle power 5. |
| 15 | – | Not used. |
| 16 | – | Not used. |
| 17 | 10 A | Right-hand high-intensity discharge headlamps. |
| 18 | 40 A | Rear window defroster. |
| 19 | 20 A | Front fog lamp. |
| 20 | 10 A | Power folding mirrors. |
| 21 | 15 A | Vehicle power 4. |
| 22 | 40 A | Rear blower motor. |
| 23 | 20 A | Fuel pump. |
| 24 | 40 A | Run/Start relay. |
| 25 | 40 A | Auxiliary power points. |
| 26 | 10 A | Left-hand high-intensity discharge headlamps. |
| 27 | – | Not used. |
| 28 | 20 A | Vehicle power 1. |
| 29 | – | Not used. |
| 30 | 15 A | Coolant pump. |
| 31 | 5 A | Anti-lock brake system. |
| 32 | 15 A | Transmission control module. |
| 33 | 30 A | Starter motor. |
| Item | Fuse Rating | Protected Component |
| 34 | – | Not used. |
| 35 | 15 A | Vehicle power 2. |
| 36 | 5 A | Engine coolant bypass valve. |
| 37 | 5 A | Glow plugs. Powertrain control module. |
|
38 |
40 A | Anti-lock brake system with electronic stability control (excluding 510 series). |
| 60 A | Cooling fan (510 series). | |
| 39 | – | Not used. |
| 40 | 10 A | Vehicle power 3. |
| 41 | – | Not used. |
| 42 | – | Not used (excluding 510 series). |
| 15 A | Cooling fan (510 series). | |
| 43 | 60 A | Anti-lock brake system pump. |
| 44 | 25 A | Cooling fan (excluding 510 series). |
| – | Not used (510 series). | |
| 45 | 30 A | Trailer socket. |
| 46 | – | Not used. |
| 47 | – | Not used. |
|
48 |
50 A | Cooling fan (excluding 510 series). |
| 40 A | Anti-lock brake system with electronic stability control (510 series). | |
| 49 | – | Not used. |
| 50 | – | Not used. |
| 51 | 10 A | Air conditioning clutch. |
| 52 | 50 A | Cooling fan (excluding 510 series). |
| 60 A | Cooling fan (510 series). | |
| 53 | – | Not used. |
| Item | Fuse Rating | Protected Component |
| 54 | 20 A | Battery back-up sounder. |
| 55 | 25 A | Transmission fluid pump. |
| 56 | – | Not used. |
| 57 | – | Not used. |
| 58 | 30 A | Trailer socket. |
| 59 | – | Cooling fan relay. |
Driver Compartment Fuse Box
| Item | Fuse Rating | Protected Component |
| 1 | 5 A | USB port. |
| 2 | – | Not used. |
| 3 | 5 A | USB port. |
| 4 | – | Not used. |
| Item | Fuse Rating | Protected Component |
| 5 | – | Not used. |
| 6 | – | Not used. |
| 7 | – | Not used. |
| 8 | – | Not used. |
| 9 | 10 A | Heated exterior mirrors. |
| 10 | 5 A | Cooling fan. |
| 11 | – | Not used. |
| 12 | – | Not used. |
| 13 | – | Not used. |
| 14 | – | Not used. |
| 15 | – | Not used. |
| 16 | 5 A | Rain sensor. |
| 17 | – | Not used. |
| 18 | 20 A | Relay. |
| 19 | – | Not used. |
| 20 | – | Not used. |
| 21 | 20 A | Heated rear window. |
| 22 | 20 A | Heated rear window. |
| 23 | 20 A | Auxiliary power point. |
| 24 | 20 A | Auxiliary power point. |
| 25 | – | Not used. |
| 26 | 25 A | Windshield wiper motor. |
| 27 | – | Not used. |
| 28 | 30 A | Modified vehicle connections. |
| 29 | 20 A | Fuel fired heater. |
| 30 | 30 A | Power running boards. |
| 31 | – | Not used. |
| Item | Fuse Rating | Protected Component |
| 32 | – | Not used. |
| 33 | – | Not used. |
| 34 | – | Not used. |
| 35 | – | Not used. |
| 36 | – | Not used. |
| 37 | – | Not used. |
| 38 | – | Not used. |
| 39 | – | Not used. |
| 40 | – | Not used. |
| 41 | 25 A | Load shed relay. |
| 42 | 40 A | Starter relay. |
| 43 | 40 A | Upfitter relay. |
| 44 | 40 A | Starter relay. |
| 45 | 10 A | Upfitter interface module. |
| 46 | – | Not used. |
| 47 | – | Not used. |
| 48 | 5 A | Modified vehicle connections. |
| 49 | 10 A | Brake pedal switch. |
| 50 | 30 A | Passenger power seat. |
| 51 | 40 A | Modified vehicle connections. |
| 52 | 30 A | Driver power seat. |
| 53 | 60 A | Battery. |
| 54 | 60 A | Power inverter. |
| 55 | 50 A | Body control module. |
| 56 | 10 A | Modified vehicle connections. |
| 57 | – | Not used. |
| 58 | 10 A | Connector camper body interface. |
| Item | Fuse Rating | Protected Component |
| Upfitter interface. Secondary junction box. | ||
|
59 |
10 A |
Rear climate control. Front view camera. Rear view camera. Adaptive cruise control module. Blind spot information system. |
| 60 | 10 A | Trailer brake control module. |
| 61 | – | Not used. |
| 62 | 15 A | Enhanced cut off relay system module. |
| 63 | 20 A | Auxiliary power point. |
| 64 | 30 A | Modified vehicle connections. |
| 65 | – | Not used. |
| 66 | 10 A | Enhanced cut off relay system. Camper. Load shed relay. |
| 67 | – | Not used. |
| 68 | 5 A | Trailer tow module. |
| 69 | 5 A | Steering wheel module. |
| 70 | 5 A | Swivel seats. |
| 71 | 10 A | Passenger heated seat. |
| 72 | 10 A | Driver heated seat. |
| 73 | 20 A | Adaptive front lighting module. Headlamp leveling. |
| 74 | – | Not used. |
| 75 | 20 A | Engine compartment fuse box. |
| 76 | 10 A | Power sliding door control switch. |
| 77 | 5 A | Headlamp switch. |
| 78 | 7.5 A | Modified vehicle connections. |
| 79 | 5 A | Driver compartment fuse box relay. |
| Item | Fuse Rating | Protected Component |
| 80 | – | Not used. |
| 81 | 40 A | Trailer tow module. |
| 82 | 30 A | Power sliding door. |
| 83 | 30 A | Trailer brake control module. |
| 84 | 50 A | Body control module. |
| 85 | 30 A | Power sliding door. |
| 86 | 50 A | Body control module. |
Body Control Module
| Item | Fuse Rating | Protected Component |
| 1 | – | Not used. |
| 2 | 10 A | Power inverter. |
| 3 | 7.5 A | Power window switch. Power exterior mirrors. |
| 4 | 20 A | Not used. |
| Item | Fuse Rating | Protected Component |
| 5 | – | Not used. |
| 6 | 10 A | Not used. |
| 7 | 10 A | Not used. |
| 8 | 5 A | Telematics control unit module. |
| 9 | 5 A | Rear air conditioning. |
| 10 | – | Not used. |
| 11 | – | Not used. |
| 12 | 7.5 A | Climate control. |
| 13 | 7.5 A | Data link connector. Steering column. Instrument cluster. |
| 14 | 15 A | Not used. |
| 15 | 15 A | SYNC 3 module. Integrated control panel. |
| 16 | – | Not used. |
| 17 | 7.5 A | Not used. |
| 18 | 7.5 A | Not used. |
| 19 | 5 A | Not used. |
| 20 | 5 A | Ignition switch. |
| 21 | 5 A | Not used. |
| 22 | 5 A | Not used. |
| 23 | 30 A | Not used. |
| 24 | 30 A | Not used. |
| 25 | 20 A | Not used. |
| 26 | 30 A | Not used. |
| 27 | 30 A | Not used. |
| 28 | 30 A | Not used. |
| 29 | 15 A | Not used. |
| Item | Fuse Rating | Protected Component |
| 30 | 5 A | Not used. |
| 31 | 10 A | Data link connector. Remote key receiver. |
| 32 | 20 A | Radio. |
| 33 | – | Not used. |
| 34 | 30 A | Run/Start relay. Parking aid. Steering column. |
| 35 | 5 A | Not used. |
| 36 | 15 A | Parking aid. |
| Steering column control module. | ||
| 37 | 20 A | Not used. |
| 38 | 30 A | Power windows. |
Passenger Compartment Fuse Box
| Item | Fuse Rating | Protected Component |
| 1 | 40 A | Relay 2. |
| 2 | 40 A | Relay 3. |
| 3 | 20 A | Relay 1. |
| 4 | 20 A | Relay 4. |
| 5 | 20 A | Relay 5. |
| 6 | – | Not used. |
| 7 | – | Not used. |
| 8 | 20 A | Relay 7. |
| 9 | 20 A | Relay 8. |
| 10 | – | Not used. |
| 11 | – | Not used. |
| 12 | 20 A | Relay 9. |
| 13 | 20 A | Relay 6. |
| 14 | 5 A | Ignition. |
| 15 | 5 A | Power supply. |
| 16 | 20 A | Auxiliary switch 3 relay. |
| 17 | 40 A | Auxiliary switch 3 relay. |
| 18 | 40 A | Auxiliary switch 3 relay. |
| 19 | 20 A | Auxiliary switch 4 relay. |
| 20 | 20 A | Auxiliary switch 5 relay. |
| 21 | 20 A | Auxiliary fuse box relay. |
| 22 | 20 A | Auxiliary switch 7 relay. |
| 23 | 20 A | Auxiliary switch 8 relay. |
| 24 | 20 A | Auxiliary switch 9 relay. |
Pre-fuse Box
| Item | Fuse Rating | Protected Component |
| 1 | 125 A | Body control module. |
| 2 | 80 A | Electronic power assist steering. |
| 3 | – | Not used. |
| 4 | – | Not used. |
| 5 | – | Not used. |
| 6 | 150 A | Passenger compartment fuse box. |
| 7 | 60 A | Camper. |
| 8 | – | Not used. |
| 9 | 500 A | Starter motor. Alternator. |
| 10 | 300 A | Engine compartment fuse box. |
| 11 | 250 A | Dual generators. |
| Item | Fuse Rating | Protected Component |
| 12 | 150 A | Driver compartment fuse box. |
| 13 | 190 A | Load shed relay. |
| 14 | 175 A | Auxiliary power point 1. |
| 15 | 60 A | Auxiliary power point 2. |
CHANGING A FUSE
Fuses
WARNING: Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.
Fuse Types
| Callout | Fuse Type |
| A | Micro 2 |
| B | Micro 3 |
| C | Maxi |
| D | Mini |
| E | M Case |
| F | J Case |
| G | J Case Low Profile |
Useful Links:
2024 FORD TRANSIT VAN Review, Price, Features and Mileage (Brochure)
2021 FORD Transit Warning Lights and Indicators User Guide