Ford Transit/Tourneo Custom | 2016-2018 | Fuse Box Location and Diagram

The facelifted first-generation Ford Transit Custom and Ford Tourneo Custom, versatile and practical commercial vans, were produced from 2016 to 2018. Known for their updated styling, improved features, and dependable performance, these models are a popular choice for businesses and passenger transport.

In this article, you will find fuse box diagrams for Ford Transit Custom and Ford Tourneo Custom models produced between 2016 and 2018, covering years 2016, 2017, and 2018. These diagrams provide detailed information about the fuse layout and relay assignments, helping owners and technicians troubleshoot and maintain the vehicle’s electrical systems.

What’s Included:

Fuse Box Diagrams: Easy-to-read visuals for quick identification of fuses and relays.
Fuse Panel Locations: Clear instructions on where to locate the fuse panels inside the vehicle.
Fuse Assignments: Comprehensive explanations of the function of each fuse and relay for diagnostics and repairs.

Whether you are addressing electrical issues, replacing a fuse, or conducting regular maintenance, this guide is an essential resource for owners and mechanics. It ensures your Ford Transit Custom or Ford Tourneo Custom operates reliably and efficiently.

Keep your Ford Transit Custom and Ford Tourneo Custom (2016–2018) in top condition with this detailed fuse box guide!

The cigar lighter (power outlet) fuses in the Ford Transit/Tourneo (except 2.2L Diesel models) are F6, F7, F13, F14, F30, and F71 (230V) located in the Instrument Panel Fuse Box.

What’s Included

Fuses Box Location

Passenger Compartment

Two fuse boxes are located behind the removable trim panel – the Fuse Box is on the right, and the Body Control Module is on the left (on vehicles with right-hand drive – on the contrary).

Pre-Fuse Box Location

The Pre-fuse Box is located under the driver’s seat.

Engine Compartment

Fuse Box Diagrams (except 2.2L Diesel)

Pre-fuse Box

Pre-fuse Box

№	Amp	Description
		Main fuses
F1	470A	Engine compartment fuse box. Starter motor. Alternator.
F2	100A	Passenger compartment fuse box. Body control module fuse box.
F3	40A	Direct current (DC/AC) inverter.
F4	200A	Secondary relay box feed 1.
F5	100A	Secondary relay box feed 2.
F6	100A	Cabin heater.
F7	80A	Heated windshield relay.
F8	100A	Passenger compartment fuse box. Secondary relay box feed 5.
F9	100A	Secondary relay box feed 3.
F10	100A	Secondary relay box feed 4.
F11	100A	Powertrain control module relay.
F12	60A	Auxiliary power point 1 (Modified vehicle connection).
F13	60A	Auxiliary power point 2 (Modified vehicle connection).
F14	60A	Auxiliary power point 3 (Modified vehicle connection).
F15	60A	Rear climate control.
F16	100A	Not used.
F17	60A	Camper (Modified vehicle connection).

		Fuses and relays behind the cover
F1	3A	Exterior light switch. Water heater switch. Auxiliary power switch.
F2	20A	Power supply.
F3	20A	R1 power (Beacon).
F4	20A	R2 power (Ignition).
F5	15A	R3 power (Auxiliary power point, Water heater).
F6	15A	R4 power (Interior lamp).
F7	15A	R5, R6 power (Direction indicators, Auxiliary power point).
F8	10A	R7 power (Interior lighting).
F9	20A	Radio transmitter.
F10	5A	Ignition switch relay.
F11	15A	Ignition switch relay.
F12	–	Not used.
R1	–	Beacon relay.
R2	–	Ignition relay.
R3	–	Auxiliary power point 2. Water heater.
R4	–	Interior lamp relay.
R5	–	Auxiliary power point 1. Direction indicator (left hand side).
R6	–	Direction indicator (right hand side).
R7	–	Interior lighting.

Passenger Compartment Fuse Box

Instrument panel fuse box diagram: Ford Transit Custom / Tourneo Custom (2016, 2017, 2018)

Assignment of the fuses in the instrument panel

№	Amp	Description
F1	60A	Windshield wiper motor relay.
F2	40A	Blower motor.
F3	15A	Not used / Controller area network interface module.
F4	40A	Heated rear window. Heated exterior mirrors.
F5	40A	Trailer B+ supply.
F6	40A	Auxiliary power point 2.
F7	40A	Auxiliary power point 1.
F8	20A	Horn.
F9	15A	Rear window washer relay.
F10	10A	R1, R2, R3, R4, R5, R10, R17 relay coils.
F11	5A	Not used / USB port.
F12	5A	Not used / USB port.
F13	20A	Cigar lighter.
F14	20A	Instrument panel auxiliary power point.
F15	50A	Voltage quality module. Body control module.
F16	25A	Anti-lock brake system module. Electronic stability program valves control.
F17	5A	Powertrain control module battery positive voltage relay coil.
F18	10A	Brake lamp.
F19	15A	Locking cargo relay.
F20	5A	Fuel fired booster heater.
F21	15A	Automatic transmission control unit.
F22	25A	Automatic transmission oil pump.
F23	5A	Not used / USB port.
F24	10A	Heated exterior mirrors.
F25	7.5A	Driver door unlock.
F26	7.5A	Passenger door unlock.
F27	–	Not used.
F28	20A	Auxiliary battery relay / Not Used.
F29	40A	Rear blower motor.
F30	20A	Rear auxiliary power point.
F31	30A	Heated rear window.
F32	60A	Run-start relay.
F33	60A	Fuel pump relay.
F34	40A	Heated rear window left-hand side.
F35	40A	Heated rear window right-hand side.
F36	50A	Body control module feed RP1.
F37	50A	Body control module feed RP2.
F38	60A	Standard relay box feed BB4.
F39	20A	Heated seats.
F40	5A	Powertrain control module ignition.
F41	5A	Fuel fired booster heater relay coil.
F42	5A	Headlamp leveling.
F43	5A	Transmission control module.
F44	10A	Air suspension. Voltage quality module. Rear climate control. Light detection and ranging system. Front and rear view cameras. Adaptive cruise control.
F45	20A	Cornering lamps.
F46	5A	Heated rear window. Heated exterior mirror relay.
F47	5A	Anti-lock brake system module.
F48	10A	Camper interface connector 1.
F49	20A	Rear window wiper.
F50	5A	Rain sensor module. Rear window wiper.
F51	25A	Windshield wiper motor.
F52	25A	Windshield wiper motor.
F53	40A	Air suspension relay.
F54	15A	Air suspension module.
F55	40A	Anti-lock brake system module. Electronic stability control.
F56	–	Not used.
F57	30A	Not used / Driver power seat.
F58	15A	Not used / Modified vehicle connection.
F59	30A	Starter motor solenoid.
F60	15A	Trailer tow battery charge.
F61	15A	Double lock left-hand side.
F62	15A	Double lock right-hand side.
F63	15A	Central lock left-hand side.
F64	15A	Central lock right-hand side.
F65	20A	Fuel pump.
F66	40A	Heated fuel filter.
F67	10A	Not used / Heated seats..
F68	10A	Not used / Heated seats..
F69	7.5A	Tachograph.
F70	5A	Not used / Trailer module.
F71	40A	230V power outlet.
F72	30A	Trailer socket.

Relays
R1		Horn.
R2		Heated rear window.
R3		Rear blower motor.
R4		Rear auxiliary power points.
R5		Cigar lighter, Auxiliary power point.
R6		Left-hand heated windshield relay.
R7		Right-hand heated windshield relay.
R8		Rear window washer pump.
R9		Fuel fired booster heater blower / Not Used.
R10		Blower motor.
R11		External locking.
R12		Power folding mirrors.
R13		Run-start.
R14		Fuel pump.
R15		Not used.
R16		Not used.
R17		Windshield wipers.
R18		Not used.
R19		Not used.

Body Control Module

Body Control Module

№	Amp	Description
F1	–	Not used.
F2	7.5A	Power Exterior Mirrors. Driver door window.
F3	20A	Unlock function (driver and passenger).
F4	5A	Spare.
F5	20A	Spare.
F6	10A	Spare.
F7	10A	Spare.
F8	10A	Security horn.
F9	10A	Spare.
F10	5A	Spare.
F11	5A	Intrusion sensor. Rear air conditioning.
F12	7.5A	Climate control. Hazard flasher switch.
F13	7.5A	Steering column. Instrument cluster. Data link connector.
F14	10A	Spare.
F15	10A	Data link connector.
F16	15A	Unlock function (left/right sliding doors).
F17	5A	Battery back-up sounder.
F18	5A	Ignition switch.
F19	7.5A	Passenger airbag status indicator. Passenger airbag status switch.
F20	7.5A	Tachograph.
F21	5A	Auxiliary heater.
F22	5A	Spare.
F23	10A	Accessory delay. Direct current (DC/AC) inverter.
F24	20A	Central locking system. Double locking system.
F25	30A	Spare / Driver door module.
F26	30A	Spare / Passenger door module.
F27	30A	Spare.
F28	20A	Spare.
F29	30A	Spare.
F30	30A	Spare.
F31	15A	Spare.
F32	10A	GPS. Voice Control. SYNC module. Display. Adaptive cruise control. Remote receiver.
F33	20A	Radio. SYNC module.
F34	30A	Ignition run-start relay pre-fuse. Parking aid module. Heater control. Lane keeping system camera. Restraints control module. Central control panel. Passenger airbag status indicator. Tachograph. Auxiliary heater. Steering wheel module.
F35	5A	Restraints control module.
F36	15A	Parking aid. Lane keeping system camera. Steering wheel module.
F37	20A	Spare.
F38	30A CB	Power windows (Circuit breaker).

Engine Compartment Fuse Box

Under-hood fuse box diagram: Ford Transit Custom / Tourneo Custom (2016, 2017, 2018)

Assignment of the fuses in the engine compartment

№	Amp	Description
F1	5A	Radio mute / Not Used.
F2	–	Not used.
F3	–	Not used.
F4	–	Not used.
F5	–	Not used.
F6	15A	Not used / Nitrogen oxides sensor (euro 6.2).
F7	15A	Not used / Particulate matter sensor (euro 6.2).
F8	20A	Cooling fan (twin speed / high-speed).
F9	–	Not used.
F10	–	Not used.
F11	–	Not used.
F12	–	Not used.
F13	–	Not used.
F14	–	Not used.
F15	–	Not used.
F16	–	Not used.
F17	–	Not used.
F18	40A	Cooling fan 2.
F19	40A	Cooling fan (twin speed / high-speed).
F19	60A	Cooling fan (single speed / low-speed).
F20	40A	Selective catalytic reduction relay.
F21	40A	Glow plug module 2.
F22	40A	Glow plug module 1.
F23	10A	Air conditioning clutch.
F24	–	Not used.
F25	15A	Right-hand high-intensity discharge headlamps / Not Used.
F26	15A	Left-hand high-intensity discharge headlamps / Not used.
F27	–	Not used.
F28	5A	Crank case ventilation heater.
F29	7.5A/15A	Run on water pump / Coolant pump.
F30	60A	Powertrain control module relay.
F31	25A	Run-start 2 relay / Not Used.
F32	20A	Fuel fired booster heater.
F33	–	Not used.
F34	–	Not used.
F35	20A	Powertrain control module.
F36	20A	Vehicle power 5.
F37	15A	Tank reductant. Exhaust gas recirculation valve.
F38	10A	Engine junction box R1, R5, R10, and R15 relay coils (High-speed cooling fan, Air conditioning clutch, Low-speed cooling fan, Low-speed and high-speed cooling fan relay).
F39	10A	Glow plug monitor. Nitrogen oxide sensor.

Relays
R1		High-speed cooling fan.
R2		Not used.
R3		Rear window wiper.
R4		Air suspension.
R5		Cooling fan.
R6		Not used.
R7		Left-hand high-intensity discharge headlamps / Not used.
R8		Right-hand high-intensity discharge headlamps / Not used.
R9		Starter motor.
R10		Air conditioning clutch.
R11		Not used.
R12		Not used.
R13		Selective catalytic reduction.
R14		Not used.
R15		Low-speed cooling fan.
R16		Not used.
R17		Not used.
R18		Powertrain control module.

Fuse Box Diagrams (2.2L Diesel)

Pre-fuse Box

Assignment of the fuses in the Pre-fuse Box (2.2L Diesel)

№	Amp	Description
F1	470 A	Alternator. Starter motor. Engine junction box.
F2	100 A	Passenger compartment fuse box.
F3	–	Not used.
F4	200 A	Auxiliary junction box.
F5	100 A	Auxiliary junction box.
F6	80 A	Electric booster heater.
F7	80 A	Heated windshield relay.
F8	100 A	Engine junction box.
F9	100 A	Auxiliary junction box.
F10	60 A	Passenger compartment fuse box / Body control module 1.
F11	60 A	Passenger compartment fuse box / Body control module 2.
F12	60 A	Modified vehicle connection.
F13	60 A	Not used / Modified vehicle connection.
F14	60 A	Modified vehicle connection.

Passenger Compartment Fuse Box

Assignment of the fuses in the instrument panel (2.2L Diesel)

№	Amp	Description
F1	10A	Restraints control module.
F2	–	Not used.
F3	10A	Heated exterior mirrors.
F4	–	Not used.
F5	20A	Auxiliary heater control module / Fuel fired booster heater.
F6	5A	Tachograph.
F7	10A	Adaptive cruise control.
F8	40A	DC/AC inverter.
F9	–	Not used.
F10	30A	Driver power seat.
F11	–	Not used.
F12	–	Not used.
F13	–	Not used.
F14	5A	Powertrain control module.
F15	40A	Powertrain control module.
F16	40A	Passenger compartment fuse box.
F17	–	Not used.
F18	30A	Not used / Anti-lock brake system with electronic stability control.
F19	5A	Tachograph.
F20	5A	Heated windshield relay. Heated exterior mirror relay. AC power point. Direct current/alternating current inverter.
F21	10A	Modified vehicle connection.
F22	15A	Passenger compartment fuse box / Body control module.
F23	7.5A	Climate control. / Fuel fired booster heater relay. Auxiliary blower motor relay. Booster heater. Blower motor. Message center switch.
F24	5A	Headlamp leveling.
F25	7.5A	Interior lighting.
F26	10A	Not Used / Heated seats.
F27	10A/20A	Heated seats.
F28	20A	Adaptive front lighting module / Cornering lamps.
F29	10A	Rear view camera. Interior rear view mirror. Lane keeping system. Image processing module A &B. Steering column control module.
F30	5A	Not Used / Adaptive cruise control.
F31	–	Not used.
F32	10A	Interior lamp.
F33	–	Not used.
F34	20A	Rear window wiper.
F35	5A	Power folding mirrors.
F36	20A	Horn.
F37	7.5A	SYNC module. Global positioning system module. Or Not used (spare).
F38	5A	Windshield wiper relay. Rear window wiper relay. Horn relay. Blower motor relay.
F39	7.5A	Power windows. Rear heating, ventilation and air conditioning. Remote keyless entry.
F40	40A	Blower motor.
F41	40A	Rear blower motor.
F42	30A	Heated rear window.
F43	30A	Trailer module.
F44	60A	Auxiliary power points.
F45	–	Not used.
F46	30A	Power windows.
F47	20A	Cigar lighter.
F48	20A	Rear auxiliary power points.
F49	20A	Front auxiliary power points.
F50	60A	Ignition relay 1.
F51	60A	Ignition relay 2.
F52	40A	Left-hand heated windshield element.
F53	40A	Right-hand heated windshield element.

Relays
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		Rear blower motor.
R11		Heated rear window. Heated exterior mirrors.
R12		Right-hand heated windshield element.
R13		Left-hand heated windshield element.

Body Control Module

Assignment of the fuses in the Body Control Module (2.2L Diesel)

№	Amp	Description
F1	15A	Central locking system.
F2	15A	Central locking system.
F3	15A	Ignition switch. Auxiliary battery.
F4	5A	Parking assist control module.
F5	5A	Rain sensor module. Autolamps.
F6	15A	Windshield washer pump.
F7	7.5A	Exterior mirrors.
F8	15A	Front fog lamps.
F9	10A	Right-hand high beam.
F10	10A	Left-hand high beam.
F11	25A	Right-hand exterior lamps. Left-hand side lamps.
F12	20A	Anti-theft alarm horn. Battery back-up sounder.
F13	15A	Data link connector. Auxiliary power point relay. Interior lighting.
F14	25A	Daytime running lamps. Direction indicators. Rear fog lamp.
F15	25A	Left-hand exterior lamps. Right-hand side lamps. High mounted stoplamp.
F16	20A	Audio control.
F17	7.5A	Blower motor. Instrument cluster. Climate control.
F18	10A	Lighting control. Steering wheel module.
F19	5A	Front control/display interface module.
F20	5A	Passive anti-theft system. Ignition.
F21	3 A	Audio control. Accessory delay.

Engine Compartment Fuse Box

Under-hood fuse box diagram: Ford Transit Custom (2016, 2017, 2018) 2.2L diesel

Assignment of the fuses in the engine compartment (2.2L Diesel)

№	Amp	Description
F1	–	Not used.
F2	–	Not used.
F3	–	Not used.
F4	–	Not used.
F5	3A	Powertrain control module / Diesel particulate filter vaporizer glow plug.
F6	3A	Anti-lock brake system with electronic stability control.
F7	7.5A	Powertrain control module. Telematics control unit module. Glow plug module.
F8	–	Not used.
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. Glow plugs.
F13	–	Not used.
F14	–	Not used.
F15	–	Not used.
F16	–	Not used.
F17	–	Not used.
F18	40A	Anti-lock brake system with electronic stability control.
F19	30A	Starter motor solenoid.
F20	60A	Glow plugs.
F21	60A	Ignition relay 3.
F22	30A	Not Used / Fuel fired booster heater.
F23	25A/10A	Anti-lock brake system module / Not used (spare).
F24	7.5A	Fuel pump.
F25	15A	Not used (spare).
F26	3A	Econetic coolant valve / Not used.
F27	–	Not used.
F28	–	Not used.
F29	3A	Audio unit.
F30	60A	Low-speed and high-speed cooling fan / Low-speed cooling fan.
F31	–	Not used.
F32	60A	Windshield wiper motor.
F33	–	Not used.
F34	–	Not used.
F35	15A	Powertrain control module.
F36	7.5A	Mass air flow sensor.
F37	7.5A	Fuel volume control valve.
F38	7.5A	Air conditioning clutch.
F39	15A	Exhaust gas temperature sensor. Fuel vaporizer system fuel pump. Coolant bypass solenoid valve. Low-speed cooling fan. High-speed cooling fan. Glow plug relay

Relays
R1		Ignition relay 3.
R2		Starter motor / Not used.
R3		Rear window wiper.
R4		Windshield wiper relay.
R5		Not used.
R6		Not used / Windshield wipers.
R7		Not used / Windshield wiper speed.
R8		Not used / Fuel heater.
R9		Not used / Starter motor.
R10		Air conditioning clutch.
R11		Fuel vaporizer system glow plug.
R12		Fuel pump.
R13		Not used.
R14		Econetic coolant valve / Not used.
R15		Low-speed cooling fan.
R16		Not used.
R17		Powertrain control module.
R18		High-speed cooling fan.