Ford Transit fuse box: full generations diagrams and assignments

BySerge Barrett

The Ford Transit, a staple in commercial transport since 1965, has seen its electrical systems grow from rudimentary circuits to complex networks with multiple fuse boxes and relays. Fuses protect against overloads, and knowing their locations, layouts, and assignments is key for troubleshooting issues like non-working lights or no-start conditions. This comprehensive guide expands on generations, incorporating detailed assignments and textual diagram descriptions from reliable sources, making it easier for owners to diagnose without guesswork. We’ve included visual aids where available to illustrate layouts, drawing from service data and real-world fixes. Remember, always use the correct amp rating to avoid risks, and consult a professional for complex problems. Let’s break it down by generation, starting with the fourth.

Fourth generation (Mk4, 2000-2006): centralized boxes

Euro-compliant Mk4 centralized fuses for easier access, supporting immobilizers and locking.

Locations: Passenger junction behind glovebox, engine near firewall, relay under dash.

Detailed assignments from data:

Passenger Compartment Fuse Box

  • №201: 15A – Instrument cluster, rear wiper, clock
  • №202: 5A – Heated windscreen
  • №203: 20A – Fog lamps
  • №204: – – Not used
  • №205: 15A – Light control, indicators, engine management, ignition
  • №206: 5A – Number plate light
  • №207: 10A – Airbag
  • №208: 10A – Instrument illumination
  • №209: 15A – Side lamps
  • №210: 15A – Tachometer, clock
  • №211: 30A – Rear heater blower
  • №212: 10A – Cigar lighter
  • №213: 10A – Rear A/C
  • №214: 15A – Interior lamps, mirrors
  • №215: 20A – Heated windscreen, seats, auxiliary heater
  • №216: 20A – Auxiliary socket
  • №217: 15A – Heated rear window, mirrors
  • №218: – – Not used
  • №219: 30A – Electric windows
  • №220: 20A – Heated rear window
  • №221: 15A – Brake lamp
  • №222: 15A – Radio
  • №223: 30A – Heater blower
  • №224: 20A – Headlamp switch
  • №225: 15A – A/C
  • №226: 20A – Hazard, indicators
  • №227: 5A – Radio, ABS

Engine Compartment Fuse Box

  • №1: 5A – Auto transmission
  • №3: 20A – Daytime lamps, dipped beam
  • №4: 5A – Battery sensor (Diesel)
  • №5: 20A – Fuel cut-off
  • №6: 30A – Towing
  • №7: 15A – Horn
  • №8: 20A – ABS
  • №9: 20A – Main beam
  • №10: 10A – A/C
  • №11: 20A – Washers
  • №13: 30A – Wipers
  • №14: 15A – Reversing lamp
  • №15: 5A – Immobiliser
  • №16: 5A – Engine control
  • №17: 30A – Towing
  • №19: 5A – Auto transmission
  • №20: 15A – Auto transmission
  • №21: 20A – Engine management
  • №22: 20A – Fuel pump
  • №23: 10A – Dipped beam right
  • №24: 10A – Dipped beam left
  • №101: 40A – ABS
  • №102: 40A – Heated windscreen left
  • №103: 50A – Main supply
  • №104: 50A – Main supply
  • №105: 40A – Cooling fan (Diesel, DOHC)
  • №106: 30A – Ignition
  • №107: 30A – Ignition
  • №109: 40A – Cooling fan
  • №110: 40A – Heated windscreen right
  • №111: 30A – Ignition
  • №113: 40A – Auto transmission

Relays: Starter, glow plug, horn, high/low beam, fuel pump, A/C, fan.

Diagram description: Passenger box with 27 slots in rows, engine box with high-amp fuses at top, standard below.

Problems: Fuel heater fuses in cold weather.

Fifth generation (Mk5, 2006-2013): four box system

Mk5 added stability control, with four boxes for versatility.

Locations: Pre-fuse under seat, relay behind glovebox, passenger junction, engine bay.

Detailed assignments (example):

Pre-fuse Box

  • №1: 350A – Starter, alternator
  • №2: 60A – Passenger box KL15
  • №3: 100A – Engine box non-start
  • №4: 40A – Heated screen right
  • №5: 100A – Relay box non-start
  • №6: 40A – Heated screen left
  • №7: 60A – Passenger box non-start
  • №8: 60A – Customer point
  • №9: 60A – Customer point
  • №10: 60A – Customer point

Standard Relay Box

  • №38: 20A – Rear wiper
  • №39: 10A – A/C control
  • №40: 5A – Not used
  • №41: 5A – Tachograph
  • №42: 5A – Headlamp levelling, switch KL15
  • №43: 20A – Heated seats
  • №44: 20A – Horn
  • №45: 20A – Auxiliary socket front
  • №46: 10A – Heated mirrors (CAT 1)
  • №47: 20A – Cigar lighter
  • №48: 5A – Relay coils, mirrors
  • №49: 20A – Auxiliary socket rear
  • №50: 10A – Main beam left
  • №51: 10A – Main beam right
  • №52: 10A – Dipped beam left
  • №53: 10A – Dipped beam right
  • №54: 30A – Pre-fuse for beams, DRL, tachograph, heater blower
  • №55: 40A – Heater blower
  • №56: 20A – Power windows
  • №57: 30A – Rear heater blower
  • №58: 30A – Front wiper
  • №59: 30A – Heated rear window, mirrors
  • №61: 60A – Ignition KL15 #1
  • №62: 60A – Ignition KL15 #2

Relays: Dip beam, mirrors, main beam, horn, DRL, heater, rear windows, power feeds, wipers, heated screen.

Passenger Junction Box

  • №63: 5A – Parking aid, rain sensor
  • №64: 2A – Accelerator sensor
  • №65: 15A – Brake switch
  • №66: 5A – Instrument cluster, PATS, tachograph, switch illumination
  • №67: 15A – Washer pump
  • №68: 10A – Restraints module
  • №69: 20A – Exterior lamp KL15
  • №70: 20A – Battery sounder
  • №71: 5A – Exterior lamp KL30
  • №72: 10A – Battery saver, OBDII KL30
  • №73: 15A – Radio, phone
  • №74: 5A – Instrument cluster, heater timer, keyless, motion sensor KL30
  • №75: 7.5A – Side lamps right
  • №76: 7.5A – Side lamps left
  • №77: 5A – Ignition supply, battery disconnect
  • №78: 15A – Central locking
  • №79: 7.5A – Number plate, markers
  • №80: 15A – Front fog
  • №81: 10A – Rear fog
  • №82: 3A – Audio, instrument ignition

Engine Junction Box

  • №11: 60A – Cooling fan
  • №12: 30A – Trailer KL30
  • №13: 40A – ABS/ESP pump
  • №15: 60A – Glow plugs
  • №16: 60A – Ignition KL15 #3
  • №17: 30A – Starter
  • №18: 40A – Ignition to passenger box (non-Start-Stop)
  • №20: 10A – ABS/ESP sensor KL30
  • №21: 25A – ABS/ESP valves
  • №24: 5A/20A – Fuel pump (without/with heater)
  • №26: 15A – PCM
  • №27: 5A – Fuel pump (heater)
  • №28: 5A – T-MAF
  • №29: 5A – Vaporiser monitoring
  • №30: 7.5A – Sonic purge
  • №31: 15A – VAP pump/UEGO
  • №32: 20A – Vaporiser glow
  • №33: 10A – Reversing
  • №34: 20A – Trailer KL15
  • №36: 10A – A/C clutch

Relays: Glow plugs, trailer, starter, power feeds, fuel pump, vaporiser, A/C.

Diagram description: Pre-fuse with 10 high-amp slots, relay box with 25+ fuses in rows, passenger and engine with numbered grids.

Issues: Glow plug relays for no-starts.

Sixth generation (Mk6, 2013-2019): global platform with BCM

Global Mk6 added infotainment, with fuse monitoring via OBD.

Locations: Passenger compartment fuse box behind the removable trim panel below the steering wheel, pre-fuse box under the driver’s seat, body control module fuse box behind the removable trim panel, engine compartment fuse box in the engine compartment.

Assignments (based on 2015-2018 data, similar for 2013-2014 and 2019 with minor variations):

Passenger Compartment Fuse Box

  • F1: 10A – Airbag module.
  • F2: 4A – Anti-lock brake system with electronic stability control. Parking brake.
  • F3: – – Not used.
  • F4: 10A – Trailer tow back-up lamp relay.
  • F5: 20A – Cutaway body connectors.
  • F6: – – Not used.
  • F7: – – Not used.
  • F8: 40A – AC power outlet socket.
  • F9: 30A – Trailer brake module.
  • F10: 30A – Driver power seat.
  • F11: 30A – Passenger power seat.
  • F12: 30A – Trailer tow park lamp relay.
  • F13: 25A – Anti-lock brake system with electronic stability control valves.
  • F14: 5A – Powertrain control module B+ relay.
  • F15: 40A – Powertrain control module power relay.
  • F16: 40A – Body control module power feed.
  • F17: 40A – Anti-lock brake system.
  • F18: 40A – Modified vehicle connections.
  • F19: – – Not used.
  • F20: 5A – Heated exterior mirror relay. Heated rear window.
  • F21: 10A – Modified vehicle ignition connections.
  • F22: 15A – Passenger compartment fuse panel (Body control module).
  • F23: 7.5A – Air conditioning control module.
  • F24: 10A – Cutaway body connectors.
  • F25: 7.5A – Interior lighting. Power point relay control.
  • F26: 10A – Heated exterior mirrors.
  • F27: 20A – Heated rear window.
  • F28: 20A – Heated rear window.
  • F29: 10A – Rear parking aid camera. Lane keeping system. Electro mirror.
  • F30: – – Not used.
  • F31: 10A – Trailer brake ignition feed.
  • F32: 10A – Interior lighting.
  • F33: – – Not used.
  • F34: – – Not used.
  • F35: 5A – Power folding mirrors.
  • F36: 20A – Horn.
  • F37: 7.5A – SYNC module.
  • F38: 5A – Blower motor. Horn relay. Windshield wiper relay.
  • F39: 7.5A – Remote keyless entry. Battery. Power windows. Rear heating, ventilation and air conditioning.
  • F40: 40A – Front blower motor.
  • F41: 40A – Rear blower motor.
  • F42: 40A – Heated rear window.
  • F43: 30A – Trailer socket.
  • F44: 60A – Auxiliary power points.
  • F45: 40A – Trailer connectors B+ supply.
  • F46: 30A – Power windows.
  • F47: 20A – Cigar lighter socket.
  • F48: 20A – Rear auxiliary power points.
  • F49: 20A – Front auxiliary power points.
  • F50: 60A – Ignition relay 1
  • F51: 60A – Ignition relay 2.
  • F52: 40A – Modified vehicle connections.
  • F53: 40A – Modified vehicle connections.

Relays (passenger compartment):

  • R1: Not used (spare).
  • R2: Auxiliary power points.
  • R3: Trailer tow parking lamp.
  • R4: Ignition 2.
  • R5: Power windows.
  • R6: Ignition 1.
  • R7: Horn.
  • R8: Trailer tow back-up lamp.
  • R9: Front blower motor.
  • R10: Rear blower motor.
  • R11: Heated rear window. Heated exterior mirrors.
  • R12: Not used.
  • R13: Modified vehicle connections.

Pre-fuse Box

  • F1: 470A – Engine compartment fuse box. Starter motor. Alternator.
  • F2: 100A – Passenger compartment fuse panel. Body control module fuse box.
  • F3: 40A – Powertrain control module. Anti-lock brake system.
  • F4: 200A – Passenger compartment fuse panel.
  • F5: 100A – Passenger compartment fuse panel.
  • F6: 80A – Positive temperature coefficient heater.
  • F7: – – Not used.
  • F8: 100A – Engine junction box feed.
  • F9: 100A – Passenger compartment fuse panel.
  • F10: 60A – Passenger compartment fuse panel supply.
  • F11: 60A – Passenger compartment fuse panel supply.
  • F12: 60A – Auxiliary power point 1.
  • F13: 60A – Auxiliary power point 2.
  • F14: 60A – Auxiliary power point 3.

Body Control Module Fuse Box

  • F1: 15A – Central locking system 2.
  • F2: 15A – Central locking system 1.
  • F3: 15A – Ignition switch.
  • F4: 5A – Parking assist control module. Brake transmission shift interlock.
  • F5: 5A – Rain sensor module.
  • F6: 15A – Windshield washer pump.
  • F7: – – Not used.
  • F8: – – Not used.
  • F9: 10A – Right-hand high beam.
  • F10: 10A – Left-hand high beam.
  • F11: 25A – Right-hand exterior lamps. Left-hand position lamps.
  • F12: – – Not used.
  • F13: 15A – On-board diagnostic. Battery saver.
  • F14: 25A – Turn signal indicator. Power windows delayed accessory. Lane departure sensor heated windshield pad.
  • F15: 25A – Left-hand exterior lamps. Right-hand position lamps. High mounted stoplamp.
  • F16: 20A – Audio unit. Navigation unit.
  • F17: 7.5A – Instrument panel cluster. Heater control.
  • F18: 10A – Headlamp switch module. Steering wheel module. Stoplamp switch supply.
  • F19: 5A – Front control/display interface module.
  • F20: 5A – Ignition passive anti-theft system.
  • F21: 3A – Accessory relay, customer access feed.

Engine Compartment Fuse Box

  • F1: 10A – Selective Catalytic Reduction – Diesel.
  • F2: 15A – Selective Catalytic Reduction – Diesel.
  • F3: 15A – Selective Catalytic Reduction – Diesel.
  • F4: 10A – Selective Catalytic Reduction – Diesel.
  • F5: 3A – Diesel particulate filter vaporizer. Glow plug monitor.
  • F6: 3A – Anti-lock brake system. Stability assist. Ignition.
  • F7: 7.5A – Powertrain control module.
  • F8: 20A – Cooling fan – Gasoline.
  • F9: 30A – Left-hand windshield wiper.
  • F10: 30A – Right-hand windshield wiper.
  • F11: 10A – Air conditioning clutch.
  • F12: 20A – Diesel particulate filter vaporizer glow plug.
  • F13: – – Not used.
  • F14: 3A – Selective Catalytic Reduction – ignition – Diesel.
  • F15: – – Not used.
  • F16: – – Not used.
  • F17: – – Not used.
  • F18: 40A – Anti-lock brake system. Stability assist pump.
  • F19: 30A – Starter solenoid.
  • F20: 60A – Glow plugs.
  • F21: 60A – Ignition relay 3.
  • F22: 40A – Selective Catalytic Reduction relay feed.
  • F22: 40A – Electric vacuum pump relay feed.
  • F23: 10A – PROTECTED CIRCUIT FUSE.
  • F24: 10A – Fuel injection pump – Diesel.
  • F24: 20A – Fuel injection pump – Gasoline.
  • F25: 15A – Throttle control unit – Diesel.
  • F25: 10A – PROTECTED CIRCUIT FUSE – Gasoline.
  • F26: 20A – PROTECTED CIRCUIT FUSE.
  • F27: – – Not used.
  • F28: 7.5A – Crankcase sensor – Diesel.
  • F28: 10A – Injection power – Gasoline 3.7L.
  • F29: 3A – Ignition feed – Audio – Gasoline.
  • F29: 7.5A – Crank case ventilation heater – Diesel.
  • F30: 60A – Single cooling fan.
  • F30: 40A – Twin cooling fan.
  • F31: 40A – Twin cooling fan 2 – Gasoline.
  • F32: 30A – Windshield wiper motor.
  • F32: 60A – Windshield dual wiper motors.
  • F33: 20A – Start-Stop auxiliary water pump.
  • F34: – – Not used.
  • F35: 20A – Powertrain control system supply – Gasoline.
  • F35: 15A – Powertrain control system supply – Diesel.
  • F36: 20A – Mass air flow sensor – Gasoline.
  • F36: 15A – Mass air flow sensor. NOX sensor 1,2- Diesel.
  • F37: 7.5A – Volume Control Valve.
  • F38: 20A – Air conditioning clutch – Gasoline.
  • F38: 7.5A – Air conditioning clutch – Diesel.
  • F39: 10A – UEGO, VAP PUMP, EBYPASS, EDF, HEDF – Gasoline.
  • F39: 15A – UEGO, VAP PUMP, EBYPASS, EDF, HEDF – Diesel.

Relays (engine compartment):

  • R1: Ignition 3.
  • R2: Not used.
  • R3: Not used.
  • R4: Not used.
  • R5: Cooling fan – Gasoline.
  • R6: Windshield wiper – on and off.
  • R7: Windshield wiper – low and high speed.
  • R8: Electrical Vacuum Pump – Gasoline.
  • R9: Starter motor.
  • R10: Air conditioning clutch.
  • R11: Fuel vaporizer system glow plug.
  • R12: Fuel injection pump.
  • R13: Not used.
  • R14: Not used.
  • R15: Low and high speed cooling fan.
  • R16: Selective Catalytic Reduction – Diesel.
  • R17: Powertrain control module.
  • R18: High speed cooling fan.

Diagram description: Passenger box with 50+ slots in grid, pre-fuse high-amp strip, BCM compact module, engine with mixed fuses/relays.

Faults: Auxiliary circuit overloads from conversions.

Seventh generation (Mk7, 2019-present): smart monitoring

Current Mk7 includes EV options, with intelligent fuses and multiple compartments.

Locations: Driver side under wheel, passenger side storage, BCM left storage, pre-fuse under seat, engine.

Assignments (2019-2022):

Pre-fuse Box

  • №1: 125A – BCM
  • №2: 80A – Power steering
  • №3: 150A – PTC heater
  • №5: 60A – Cooling fan (2022)
  • №6: 150A – Passenger fuse box
  • №7: 60A – Camper
  • №9: 500A – Starter, alternator
  • №10: 300A – Engine fuse box
  • №11: 250A – Dual generators
  • №12: 150A – Driver fuse box
  • №13: 190A – Load shed relay
  • №14: 175A – Auxiliary point 1
  • №15: 60A – Auxiliary point 2

Driver Side Fuse Box

  • №1: 5A – USB port
  • №3: 5A – USB port
  • №9: 10A – Heated mirrors
  • №10: 5A – Cooling fan
  • №16: 5A – Rain sensor
  • №18: 20A – Relay (2021-2022)
  • №21: 20A – Heated rear window
  • №22: 20A – Heated rear window
  • №23: 20A – Auxiliary point
  • №24: 20A – Auxiliary point
  • №26: 25A – Wiper motor
  • №28: 30A – Modified vehicle
  • №29: 20A – Fuel heater
  • №30: 30A – Power boards
  • №41: 25A – Load shed
  • №42: 40A – Starter relay
  • №43: 40A – Upfitter relay
  • №44: 40A – Starter relay
  • №45: 10A – Upfitter module
  • №48: 5A – Modified vehicle
  • №49: 10A – Brake switch
  • №50: 30A – Passenger seat
  • №51: 40A – Modified vehicle
  • №52: 30A – Driver seat
  • №53: 60A – Battery
  • №54: 60A – Inverter
  • №55: 50A – BCM
  • №56: 10A – Modified vehicle
  • №58: 10A – Camper interface, upfitter, secondary box
  • №59: 10A – Rear A/C, cameras, cruise, blind spot
  • №60: 10A – Trailer brake
  • №62: 15A – Cut off relay module
  • №63: 20A – Auxiliary point
  • №64: 40A – Modified vehicle
  • №66: 10A – Cut off relay, camper, load shed
  • №68: 5A – Trailer module
  • №69: 5A – Steering module
  • №70: 5A – Swivel seats (2021-2022)
  • №71: 10A – Passenger heated seat
  • №72: 10A – Driver heated seat
  • №73: 20A – Adaptive lighting, headlamp leveling
  • №74: 5A – Temperature sensor (2022)
  • №75: 20A – Engine fuse box
  • №76: 10A – Power sliding door switch
  • №77: 5A – Headlamp switch
  • №78: 7.5A – Modified vehicle
  • №79: 5A – Driver fuse relay
  • №80: 10A – Diagnostic (2022)
  • №81: 40A – Trailer module
  • №82: 30A – Power sliding door
  • №83: 30A – Trailer brake
  • №84: 50A – BCM
  • №85: 30A – Power sliding door
  • №86: 50A – BCM

Passenger Side Fuse Box

  • №14: 5A – Ignition
  • №15: 5A – Power supply
  • №16-24: – – Auxiliary switches and relays

Body Control Module

  • №1: – – Not used
  • №2: 10A – Inverter
  • №3: 7.5A – Window switch, mirrors
  • №8: 5A – Alarm horn (2019-2020), telematics (2021-2022)
  • №9: 5A – Intrusion sensor, rear A/C (2019-2020)
  • №12: 7.5A – Climate control
  • №13: 7.5A – Data connector, steering, instrument
  • №14: 15A – Battery module MHEV (2019-2020)
  • №15: 15A – SYNC 3, panel (2021-2022)
  • №20: 5A – Ignition
  • №21: 5A – PTC heater (2019-2020)
  • №22: 5A – Pedestrian alert (2019-2020)
  • №31: 10A – Data connector, key receiver
  • №32: 20A – Radio, telematics (2019-2020)
  • №34: 30A – Message center, PTC, inverter, lane camera, parking aid, steering
  • №36: 15A – Parking aid, lane camera, steering (2019-2020)

Engine Compartment Fuse Box

  • №1: 50A – Wipers
  • №2: 40A – AWD (2019-2020)
  • №3: 40A – Right heated windshield (2019-2020), AWD (2021)
  • №4: 30A – Parking lamps
  • №5: 10A – Reversing lamp
  • №6: 15A – Electric steering lock (2022)
  • №7: 40A – Front blower
  • №8: 40A – Left heated windshield (2019-2020)
  • №9: 15A – Rear door latch
  • №12: 20A – Horn
  • №13: 10A – SCR
  • №14: 15A – Vehicle power 5 (2019-2021)
  • №17: 10A – Right HID headlamp
  • №18: 40A – Rear defroster
  • №19: 20A – Front fog (2019-2021)
  • №20: 10A – Power mirrors
  • №21: 15A – Vehicle power 4
  • №22: 40A – Rear blower
  • №23: 20A – Fuel pump (2019-2021)
  • №24: 40A – Run/Start relay
  • №25: 40A – Auxiliary points
  • №26: 10A – Left HID headlamp
  • №28: 20A – Vehicle power 1
  • №29: 40A – Fuel filter heater (2019-2020)
  • №30: 15A – Coolant pump (2019-2021)
  • №31: 5A – ABS
  • №32: 15A – Transmission module
  • №33: 30A – Starter (2019-2021)
  • №34: 15A – SCR
  • №35: 15A – Vehicle power 2 (2019-2021)
  • №36: 5A – Bypass valve (2019-2021), Run/Start PDB (2022)
  • №37: 5A – Glow plugs/PCM (2019-2021), Run/Start PCM (2022)
  • №38: 40A – Power point/USB
  • … (additional high amps for fans, glow plugs in diesel)

Diagram description: Driver box with 86 slots in columns, pre-fuse high-current, passenger relays, BCM compact, engine mixed.

Challenges: Software trips; use OBD for diagnostics.

This full overview equips you with precise data for all generations, enhancing safety and efficiency in maintenance. For exact matches, refer to your vehicle’s manual, as variants differ by region and trim.

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