Ford Transit Custom (from 2015) – fuse box diagram (EU version)
Engine compartment fuse box
| Fuse | Ampere rating [A] | Circuits protected |
| F1 | — | Not used |
| F2 | — | Not used |
| F3 | — | Not used |
| F4 | — | Not used |
| F5 | 3 | Powertrain control module |
| F6 | 3 | Anti-lock brake system module |
| F7 | 7,5 | Powertrain control module. Glow plug module |
| F8 | — | Not used |
| F9 | 30 | Windshield wiper motor |
| F10 | 30 | Auxiliary windshield wiper motor |
| F11 | 10 | Air conditioning clutch |
| F12 | 20 | Glow plugs |
| F13 | — | Not used |
| F14 | — | Not used |
| F15 | — | Not used |
| F16 | — | Not used |
| F17 | — | Not used |
| F18 | 40 | Anti-lock brake system module |
| F19 | 30 | Starter relay |
| F20 | 60 | Glow plug module |
| F21 | 60 | Ignition relay |
| F22 | — | Not used |
| F23 | 25 | Anti-lock brake system module |
| F24 | 7,5 | Fuel pump relay |
| F25 | — | Not used |
| F26 | 3 | Econetic coolant valve |
| F27 | — | Not used |
| F28 | — | Not used |
| F29 | — | Audio front control module |
| F30 | 60 | Low-speed and high-speed cooling fan |
| F31 | — | Not used |
| F32 | 60 | Windshield wiper motor relay |
| F33 | — | Not used |
| F34 | — | Not used |
| F35 | 15 | Powertrain control module |
| F36 | 7,5 | Mass air flow sensor |
| F37 | 7,5 | Fuel metering valve |
| F38 | 7,5 | Air conditioning clutch relay |
| F39 | 15 | Low-speed and high-speed cooling fan. Glow plug relay. Fuel vaporizer system fuel pump. Heated oxygen sensor. Econetic coolant valve relay |
| Relay | Circuits switched |
| R1 | Ignition |
| R2 | Starter motor |
| R3 | Rear window wiper |
| R4 | Windshield wiper motor |
| R5 | Not used |
| R6 | Not used |
| R7 | Not used |
| R8 | Not used |
| R9 | Not used |
| R10 | Air conditioning clutch |
| R11 | Glow plugs |
| R12 | Fuel pump |
| R13 | Not used |
| R14 | Econetic coolant valve |
| R15 | Low-speed cooling fan |
| R16 | Not used |
| R17 | Powertrain control module |
| R18 | High-speed cooling fan |
Passenger compartment fuse box
| Fuse | Ampere rating [A] | Circuits protected |
| F1 | 10 | Restraints control module |
| F2 | — | Not used |
| F3 | 10 | Exterior mirrors |
| F4 | — | Not used |
| F5 | 20 | Auxiliary heater control module. |
| F6 | 5 | Tachograph |
| F7 | — | Not used |
| F8 | 40 | Direct current (DC/AC) inverter |
| F9 | — | Not used |
| F10 | 30 | Driver power seat |
| F11 | — | Not used |
| F12 | — | Not used |
| F13 | — | Not used |
| F14 | 5 | Powertrain control module relay |
| F15 | 40 | Powertrain control module relay |
| F16 | 40 | Battery control module |
| F17 | — | Not used |
| F18 | — | Not used |
| F19 | 5 | Tachograph |
| F20 | 5 | Heated windshield relay. Left-hand heated windshield relay. right-hand heated windshield relay. Direct current (DC/AC) inverter relay |
| F21 | 10 | Customer access |
| F22 | 15 | Body control module |
| F23 | 7,5 | Fuel fired booster heater relay. Auxiliary blower motor relay. Booster heater. Blower motor. Message center switch |
| F24 | 5 | Headlamps |
| F25 | 25 | Interior lighting |
| F26 | — | Not used |
| F27 | 20 | Heated front seats |
| F28 | 20 | Adaptive front lighting module |
| F29 | 10 | Image processing module A. Image processing module B. Auto-dimming interior mirror. Steering column control module |
| F30 | — | Not used |
| F31 | — | Not used |
| F32 | 10 | Interior lamps |
| F33 | — | Not used |
| F34 | 20 | Rear window wiper relay. Rear window wiper motors |
| F35 | 5 | Power folding mirrors. Driver door window |
| F36 | 20 | Horn relay |
| F37 | 7,5 | SYNC module. Global positioning system module |
| F38 | 5 | Rear window wiper. Horn relay. Blower motor relay |
| F39 | 7,5 | Auxiliary blower motor switch. Intrusion sensor. Radio frequency receiver |
| F40 | 40 | Blower motor relay. Auxiliary blower motor relay |
| F41 | 40 | Rear heater blower |
| F42 | 30 | Heated rear window relay |
| F43 | 30 | Trailer module. Trailer socket |
| F44 | 60 | Auxiliary power point relay |
| F45 | — | Not used |
| F46 | 30 | Driver door window switch. Passenger door window switch |
| F47 | 20 | Auxiliary power point |
| F48 | 20 | Rear auxiliary power points |
| F49 | 20 | Front auxiliary power points |
| F50 | 60 | Ignition relay 1 |
| F51 | 60 | Ignition relay 2 |
| F52 | 40 | Left-hand heated windshield element |
| F53 | 40 | Right-hand heated windshield element |
| Relay | Circuits switched |
| R1 | Fuel fired booster heater |
| R2 | Auxiliary power points |
| R3 | Not used |
| R4 | Ignition relay 2 |
| R5 | Not used |
| R6 | Ignition relay 1 |
| R7 | Horn |
| R8 | Not used |
| R9 | Blower motor |
| R10 | Auxiliary blower motor |
| R11 | Heated rear window |
| R12 | Right-hand heated windshield element |
| R13 | Left-hand heated windshield element |
Pre-fuse box
| Fuse | Ampere rating [A] | Circuits protected |
| F1 | 350 | Alternator. Starter motor. Battery junction box |
| F2 | 100 | Auxiliary junction box |
| F3 | — | Not used |
| F4 | 200 | Auxiliary junction box |
| F5 | 100 | Auxiliary junction box |
| F6 | 80 | Electric booster heater |
| F7 | 80 | Auxiliary junction box |
| F8 | 100 | Battery junction box |
| F9 | 100 | Auxiliary junction box |
| F10 | 60 | Body control module 1 |
| F11 | 60 | Body control module 2 |
| F12 | 60 | Customer access |
| F13 | — | Not used |
| F14 | 60 | Customer access |
Body control module fuse box
| Fuse | Ampere rating [A] | Circuits protected |
| F1 | — | Not used |
| F2 | 15 | Driver door latch. Passenger door latch. Liftgate latch |
| F3 | 15 | Ignition switch. Auxiliary battery relay |
| F4 | 5 | Parking aid module |
| F5 | 5 | Rain sensor module. Autolamp module |
| F6 | 15 | Windshield washer pump |
| F7 | 7,5 | Exterior mirrors |
| F8 | 15 | Front fog lamps |
| F9 | 10 | Right-hand headlamp |
| F10 | 10 | Left-hand headlamp |
| F11 | 25 | Right-hand rear lamps. Right-hand headlamp. Left-hand headlamp. Exterior mirrors |
| F12 | 20 | Anti-theft alarm. Battery back-up sounder |
| F13 | 15 | Data link connector. Auxiliary power point relay. Interior lighting |
| F14 | 25 | Headlamps. Exterior mirrors |
| F15 | 25 | Right-hand headlamp. Left-hand headlamp. Left-hand rear lamps. Trailer module |
| F16 | 20 | Audio control |
| F17 | 7,5 | Instrument cluster. Blower motor |
| F18 | 10 | Headlamp switch |
| F19 | 5 | Front control/display interface module |
| F20 | 5 | Passive anti-theft system |
| F21 | 3 | Audio front control module |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.