The Ford Transit Mk8 was available with petrol and diesel engines in 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 and 2021. During this time, it has undergone restyling. The Ford Transit Custom / Tourneo Custom is a mid-size, low-displacement Ford Transit model. This article provides descriptions of the fuse and relay blocks for the Ford Transit Mk8, as well as block diagrams and their locations. The cigarette lighter fuse is highlighted.

It is located next to the washer fluid reservoir under the protective cover.

Description
Option 1
| F1 | Exhaust gas purification system 10A |
| F2 | Exhaust gas purification system 15A |
| F3 | Exhaust gas purification system 15A |
| F4 | Exhaust gas purification system 10A |
| F5 | 30A diesel filter evaporator, glow plug control system |
| F6 | 3A Anti-lock Braking System. Supporting Sustainable Development. Ignition |
| F7 | Powertrain control module 7.5 A |
| F8 | Cooling fan 20A |
| F9 | 30A Left wiper |
| F10 | 30A Right wiper |
| F11 | 10A air conditioner compressor clutch |
| F12 | 20A diesel fuel combustion filter evaporator heater plug |
| F13 | Reserve |
| F14 | 30A Exhaust gas purification system – ignition |
| F15 | Not used |
| F16 | Not used |
| F17 | Not used |
| F18 | 40A Anti-lock braking system, stability control pump |
| F19 | 30A starter solenoid |
| F20 | Glow plugs 60A |
| F21 | Ignition relay 3 for 60 A |
| F22 | Reserve |
| F22 | Reserve |
| F23 | Reserve |
| F24 | High pressure fuel pump 7.5 A |
| F25 | Reserve |
| F26 | Reserve |
| F27 | Reserve |
| F28 | Reserve |
| F29 | Reserve |
| F30 | Cooling fan 40A 1 |
| F31 | Cooling fan 40A 2 |
| F32 | 60A wiper motors (two) |
| F33 | 20A auxiliary water pump start/stop |
| F34 | Reserve |
| F35 | Powertrain control power supply 15A |
| F36 | NOXI 15A 2 sensor |
| F37 | Flow control valve 7.5 A |
| F38 | Air mass meter 7.5 A |
| F39 | 15A diesel pump fuel evaporator |
| relay | |
| R1 | ignition |
| P2 | starter |
| R3 | Rear window wiper |
| P4 | Not used |
| P5 | fan |
| P6 | Windshield wipers – turning on and off |
| P7 | Wipers – low and high speed |
| P8 | Not used |
| R9 | Not used |
| R10 | Air conditioner compressor clutch |
| R11 | Evaporator system fuel preheater |
| R12 | High pressure fuel pump |
| R13 | All-wheel drive pump |
| R14 | Econetic system |
| R15 | Fan: high and low speed |
| R16 | Exhaust gas control system |
| R17 | Powertrain control module |
| R18 | Cooling fan – high speed |
Option 2
| F1 | 5A Radio off |
| F2 | Reserve |
| F3 | Reserve |
| F4 | Reserve |
| F5 | Reserve |
| F6 | Nitrogen oxide sensor 15A |
| F7 | Particle sensor 15A |
| F8 | 20A high speed fan |
| F9 | Reserve |
| F10 | Reserve |
| F11 | Reserve |
| F12 | Reserve |
| F13 | Reserve |
| F14 | Reserve |
| F15 | Reserve |
| F16 | Reserve |
| F17 | Reserve |
| F18 | Cooling fan 40A 2 |
| F19 | Fan 40/60A |
| F20 | Exhaust gas purification system 40A |
| F21 | Glow plug 40A 2 |
| F22 | Glow plug 40A 1 |
| F23 | 10A air conditioner compressor clutch |
| F24 | Reserve |
| F25 | 15A Right headlights with gas discharge lamps |
| F26 | 15A Left headlights with gas discharge lamps |
| F27 | Reserve |
| F28 | 5A Crankcase ventilation valve heating element |
| F29 | Coolant pump 7.5/15A |
| F30 | Powertrain control module relay 40/60 A |
| F31 | Starting relay 20A |
| F32 | 20A Fuel auxiliary heater |
| F33 | Reserve |
| F34 | Reserve |
| F35 | Powertrain control module 20A |
| F36 | Power cable 20A, 5 cars |
| F37 | Reagent tank 15A. Exhaust gas recirculation (EGR) valve. |
| F38 | 10A high speed fan. A/C compressor clutch. Low speed fan. High speed and low speed fan relays. Relay coils R1, R5, R10 and R15 in the motor terminal box. |
| F39 | Glow plug control |
| relay | |
| R1 | High-speed fan |
| P2 | Not used |
| R3 | Rear window wiper |
| P4 | Air suspension module |
| P5 | fan |
| P6 | Not used |
| P7 | Left headlights with gas discharge lamps |
| P8 | Right headlights with gas discharge lamps |
| R9 | starter |
| R10 | Air conditioner compressor clutch |
| R11 | Not used |
| R12 | Not used |
| R13 | Exhaust gas purification catalyst |
| R14 | Not used |
| R15 | Low-speed fan |
| R16 | Not used |
| R17 | Not used |
| R18 | Powertrain control module |
Blocks in the cabin
There are three fuse and relay boxes inside the Ford Transit MK8. Two are located under the dashboard on the driver’s side, and one is behind the back of the driver’s seat.
Blocks under the stove
Remove the protective cover for access.

Option 1
Fuse and relay block


| F1 | Airbag module 10A |
| F2 | 20A Heated rear window |
| F3 | 10A Heated exterior mirrors |
| F4 | Reserve |
| F5 | Reserve |
| F6 | 5A Tachograph |
| F7 | Battery sensor 10A |
| F8 | 40A AC outlet |
| F9 | Reserve |
| F10 | 30A Electric driver’s seat |
| F11 | 30 A Electric passenger seat |
| F12 | Threshold lighting 30A |
| F13 | Reserve |
| F14 | 5A Tracking and Locking Control Module |
| F15 | 40 Powertrain control unit battery relay |
| F16 | Powertrain control module power relay 40A |
| F17 | Reserve |
| F18 | 30A Anti-blocking valves. Stabilization valves |
| F19 | 5A Tachograph |
| F20 | 5A relay for heated exterior mirrors. Relay for heated windshield. |
| F21 | Reserve |
| F22 | 15 A fuse block in the passenger compartment |
| F23 | Air conditioning control module 7.5 A |
| F24 | 5A Headlight range adjustment |
| F25 | 7.5A interior lighting |
| F26 | 10A Heated exterior mirrors |
| F27 | 20A Heated front seats |
| F28 | Turn signal 20A |
| F29 | Rear parking camera. Lane departure warning system. Electric mirrors. |
| F30 | Adaptive cruise control system |
| F31 | Reserve |
| F32 | 10A interior lighting |
| F33 | 20A all-wheel drive module |
| F34 | 20A Rear window wiper |
| F35 | 5A Electric folding mirrors |
| F36 | 20A horn |
| F37 | 7.5 A synchronization module |
| F38 | 5A Electric fan. Horn relay. Wiper relay. |
| F39 | Remote keyless entry 7.5 A. Battery. Power windows. Heating, ventilation and air conditioning in the rear cabin. |
| F40 | 40A front fan |
| F41 | 40A rear fan |
| F42 | 30A Heated rear window |
| F43 | 30A trailer socket |
| F44 | 60A Additional sockets |
| F45 | Reserve |
| F46 | electric window regulator 30A |
| F47 | Cigarette lighter fuse Ford Transit 20 A |
| F48 | Additional 20A sockets at the rear |
| F49 | Additional 20A sockets in the front |
| F50 | Ignition relay 1 for 60 A |
| F51 | Ignition relay 2 at 60 A |
| F52 | 40A Heated windshield (left side) |
| F53 | 40A Heated windshield (right side) |
| relay | |
| R1 | Auxiliary heater running on fuel |
| P2 | Additional sockets |
| R3 | Not used |
| P4 | Ignition 2 |
| P5 | Electric windows |
| P6 | Ignition 1 |
| P7 | beep |
| P8 | Not used |
| R9 | Front fan |
| R10 | Rear fan |
| R11 | Heated rear window. Heated exterior mirrors. |
| R12 | Windshield defroster (left side) |
| R13 | Heated windshield (right side) |
Fuses 47, 48, 49 at 20A are responsible for the operation of the cigarette lighter and additional sockets, as well as the USB port.
Additional fuse block


| F1 | 15A Central locking 2 |
| F2 | 15A Central locking 1 |
| F3 | Auxiliary battery relay (switch) 15A |
| F4 | 5A Parking assistance module |
| F5 | 5A rain sensor module. Automatic lighting control module. |
| F6 | 15A Windshield washer pump |
| F7 | Exterior mirror 7.5 A |
| F8 | 15A fog lights |
| F9 | High beam relay 10A right |
| F10 | Left high beam relay 10A |
| F11 | Exterior lights 25A on the right side. Side lights on the left side. |
| F12 | Anti-theft alarm 20A. Independent battery for audio devices. |
| F13 | Data connection 15 A. Auxiliary socket relay. Interior lighting. |
| F14 | 25A Daytime running lights Turn signals Rear fog lights |
| F15 | 25A Side marker lights on the right side. Exterior lighting on the left side. Central brake light |
| F16 | 20A audio control |
| F17 | 7.5 A heater control. Instrument panel |
| F18 | 10A headlight switch. Steering module. |
| F19 | 5A Front Control Display Interface Module Reset |
| F20 | 5A Passive anti-theft device and ignition. Ignition |
| F21 | 3A Front Audio Control Module Accessory Relay |
Option 2
Fuse and relay block
Example


Decryption
| F1 | Wiper motor relay 60A |
| F2 | Electric fan 40A |
| F3 | Reserve |
| F4 | 40A Heated rear window. Heated exterior mirrors |
| F5 | Trailer power supply 40A B+ |
| F6 | Additional socket 40 A 2 |
| F7 | Additional socket 40 A 1 |
| F8 | 20A horn |
| F9 | 15A rear window washer relay |
| F10 | Relay coils 10A R1, R2, R3, R4, R5, R10, R17 |
| F11 | Reserve |
| F12 | Reserve |
| F13 | Cigarette lighter 20A |
| F14 | 20A accessory socket on the dashboard |
| F15 | Voltage quality control module 50 A. Body control unit |
| F16 | 25A Anti-lock brake system module. Electronic stability control valves |
| F17 | 5A Powertrain Control Module Battery Positive Voltage Relay Coil |
| F18 | 10A brake light |
| F19 | Load Lockout Relay 15A |
| F20 | 5A Fuel auxiliary heater |
| F21 | 15A Automatic transmission control unit |
| F22 | Oil pump 25A for automatic transmission |
| F23 | 20A Left side rear window heater |
| F24 | 10A Heated exterior mirrors |
| F25 | 7.5A Unlocking the driver’s door |
| F26 | 7.5A Unlock passenger door |
| F27 | Reserve |
| F28 | Reserve |
| F29 | 40A rear fan |
| F30 | Additional 20A socket at the rear |
| F31 | 20A Left side rear window heater |
| F32 | 60 A start/start relay |
| F33 | Fuel pump relay 60A |
| F34 | 40A Rear left window heater |
| F35 | 40A Right side rear window heater |
| F36 | 50A power supply, RP1 body control unit |
| F37 | RP2 body control unit, 50A power supply |
| F38 | Power supply 60 A, standard relay block BB4 |
| F39 | Seat heating 20A |
| F40 | 5A Ignition unit, powertrain control module |
| F41 | Fuel auxiliary heater relay coil 5A |
| F42 | 5A Headlight range adjustment |
| F43 | 5A Transmission Control Module |
| F44 | 10A Air suspension. Power quality module. Rear climate control system. Light and distance control system. Front and rear cameras. Adaptive cruise control system. |
| F45 | Turn signal 20A |
| F46 | 5A Rear window heating. Exterior mirror heating relay |
| F47 | 5A Anti-lock brake system module |
| F48 | 10A Camper Interface Connection 1 |
| F49 | 20A Rear window wiper |
| F50 | 5A Rain sensor module. Rear window wiper |
| F51 | Wiper motor 25A |
| F52 | Wiper motor 25A |
| F53 | Reserve |
| F54 | Reserve |
| F55 | 40A Anti-lock brake system module. Electronic stability control system |
| F56 | 30A electric threshold |
| F57 | 30A Electric driver’s seat |
| F58 | Fog light 20A |
| F59 | 30A starter solenoid |
| F60 | 15A trailer battery charging |
| F61 | 15A Left double lock |
| F62 | 15A Right double lock |
| F63 | 15A Left side of the central flap |
| F64 | 15A Right side of the central flap |
| F65 | Fuel pump 20A |
| F66 | 40A Fuel filter heater |
Fuse No. 13 at 20 A is responsible for the operation of the cigarette lighter, and additional sockets and USB ports are 20, 6, and 7.
Relay block

Description
| circuit breaker | ||
| F67 | Reserve | |
| F68 | Reserve | |
| F69 | Tachograph 7.5 A | |
| F70 | Reserve | |
| F71 | Socket 40A 230V | |
| F72 | 30A trailer socket | |
| relay | ||
| R1 | beep | |
| P2 | Heated rear window | |
| R3 | Rear fan | |
| P4 | Additional sockets at the back | |
| P5 | Cigarette lighter. Additional power outlet. | |
| P6 | Windshield heating relay (left side) | |
| P7 | Windshield heating relay (right side) | |
| P8 | Rear window washer pump | |
| R9 | Fan for fuel auxiliary heater | |
| R10 | Electric fan | |
| R11 | External locking | |
| R12 | Electric folding mirrors | |
| R13 | Getting started | |
| R14 | fuel pump | |
| R15 | Not used | |
| R16 | Not used | |
| R17 | Wipers | |
| R18 | Fog lights | |
| R19 | Not used | |
Additional fuse block

| 1 | Reserve |
| 2 | 7.5A Electric exterior mirrors. Driver’s door glass |
| 3 | 20A Unlock driver’s door. Unlock passenger’s door |
| 4 | Reserve |
| 5 | Reserve |
| 6 | Reserve |
| 7 | Reserve |
| 8 | 10A anti-theft alarm sound |
| 9 | Spare part. |
| 10 | Spare part. |
| 11 | 5A Intrusion sensor. Heating, ventilation and air conditioning in the rear passenger compartment |
| 12 | Microclimate control system 7.5 A. Emergency lighting button. |
| 13 | 7.5 Steering column. Instrument panel. Data connection |
| 14 | spare part |
| 15 | 10A data connection |
| 16 | Sliding door lock actuator 15A |
| 17 | Standalone audio device with 5 A battery |
| 18 | 5A ignition switch |
| 19 | Passenger airbag deactivation indicator 7.5 A. Passenger airbag deployment switch. |
| 20 | Tachograph 7.5 A |
| 21 | 5A Auxiliary heating control unit |
| 22 | Replacement 5A |
| 23 | 10A delay off for auxiliary devices. AC/DC inverter. |
| 24 | Central locking 30A. Double locking system. |
| 25 | 30A driver door module |
| 26 | Passenger door module 30A |
| 27 | Replacement 30A |
| 28 | Replacement 20A |
| 29 | Replacement 30A |
| 30 | Replacement 30A |
| 31 | Replacement 15A |
| 32 | 10A synchronization module. Multifunction display. Radio receiver. |
| 33 | Audio system 20A. SYNC module |
| 34 | Ignition relay 30A. Active parking assist control module. Heater control unit. Lane marking control system. Airbag and seat belt control unit. Central control unit. Passenger airbag deactivation indicator. Tachograph. Auxiliary heater. Steering wheel module. |
| 35 | 5A Airbag and seat belt control unit |
| 36 | 15A Active Parking Assist Control Module. Lane Departure Warning System. Steering Module |
| 37 | Replacement 20A |
| 38 | electric window regulator 30A |
Fuse box behind the driver’s seat
To access the device, you need to move the seat forward.


It consists of a robust fuse compartment and an internal fuse and relay compartment.

Marking
| F1 | 470 A fuse block in the engine compartment. Starter generator |
| F2 | Body control unit 100A |
| F3 | AC to DC inverter 40A |
| F4 | 200A power supply for 1 auxiliary relay unit or fuse block in the vehicle interior |
| F5 | 100A power supply, 2 auxiliary relay blocks or fuse block in the cabin |
| F6 | Auxiliary heater 100 A |
| F7 | 80A relay for windshield heating |
| F8 | 100 A body systems control unit. Powers 5 auxiliary relay units. |
| F9 | 100 A power supply, 3 auxiliary relay blocks |
| F10 | 100A power supply for 4 auxiliary relay units. 60A power supply for the fuse box in the vehicle interior. |
| F11 | Powertrain control module relay 100 A, passenger compartment fuse box 60 A, power supply |
| F12 | 60A connection to a converted vehicle |
| F13 | 60A connection to a converted vehicle |
| F14 | 60A connection to a converted vehicle |
| F15 | 60A Rear seat climate control system |
| F16 | Reserve 100 A |
| F17 | 60A connection to a converted vehicle |
Internal department diagram

Decryption
| F1 | 3A outdoor light switch. Water heater switch. Power switch for connecting additional devices. | |
| F2 | Power supply 20 A | |
| F3 | Power supply 20 A R1 | |
| F4 | Power supply 20 A R2 | |
| F5 | Power supply 15 A R3 | |
| F6 | Power supply 15A R4 | |
| F7 | Power supply 15A R5, R6 | |
| F8 | Power supply 10A R7 | |
| F9 | Radio transmitter 20A | |
| F10 | Ignition switch relay 5A (switch). | |
| F11 | Ignition switch relay (switch) 15 A. | |
| F12 | Reserve | |
| relay | ||
| R1 | Beacon relay | |
| P2 | ignition relay | |
| R3 | Additional socket 2. Water heater | |
| P4 | Interior lighting relay | |
| P5 | Additional socket 1. Turn signal (left side) | |
| P6 | Turn signal (right side) | |
| P7 | Interior lighting | |