Learn about Citroën Relay III / Jumper III from 2015 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Citroën Relay III / Jumper III from 2015 is a versatile commercial vehicle available in various body styles, including panel vans, chassis cabs, and crew vans. Known for its large cargo space, it offers multiple configurations to meet the needs of businesses. The interior features advanced technology such as touchscreen infotainment, Bluetooth connectivity, and modern driver assistance systems like lane departure warnings and rear parking sensors.
The fuse box, located under the dashboard and beneath the bonnet, safeguards key electrical components such as lights, infotainment, and safety features from electrical surges. If a fuse blows, it interrupts the circuit to prevent damage.
The relays control important systems, including the starter motor, fuel pump, and fans. They allow lower-power circuits to manage higher-power devices. A malfunctioning relay could prevent the van from starting or cause the cooling system to fail.
Regularly inspecting the fuse box and relays is crucial for ensuring the Citroën Relay’s electrical systems continue to operate efficiently, supporting its high-performance features and safety functions.
MUST READ: DYI – How to Check Car Fuses?
(2015…) Citroën Relay III / Jumper III fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Citroën Relay III / Jumper III from 2015 fuse assignment
Year of production: from 2015…
Fuse box in instrument panel (passengers’s side)
| Fuse | Ampere rating [A] | Allocation |
| 12 | 7,5 | Right-hand dipped beam headlamp |
| 13 | 7,5 | Left-hand dipped beam headlamp |
| 31 | 5 | Relay supply |
| 32 | 10 | Cab lighting |
| 33 | 15 | Rear 12V socket |
| 34 | — | Not used |
| 35 | 7,5 | Reversing lamps – Water in Diesel fuel sensor |
| 36 | 15 | Central locking control – Battery |
| 37 | 7,5 | Brake lamps switch – Thirs brake lamp – Instrument pamel |
| 38 | 10 | Central locking |
| 39 | 10 | Audio system – Diagnostic socket – Alarm siren – Programmable additional heating controls – Air conditioning controls – Tachograph – Battery |
| 40 | 15 | Heated: rear screen (left hand), driver’s side mirror |
| 41 | 15 | Heated: rear screen (right hand), passenger’s side mirror |
| 42 | 7,5 | ABS control unit and sensor – ASR sensor – DSC sensor – Brake lamps switch |
| 43 | 30 | Windscreen wiper motor |
| 44 | 20 | Cigarette lighter – 12V socket |
| 45 | 7,5 | Door controls |
| 46 | — | Not used |
| 47 | 20 | Driver’s electric window motor |
| 48 | 20 | Passenger electric window motor |
| 49 | 7,5 | Audio system – Instrument panel controls – Driver’s electric window |
| 50 | 7,5 | Airbags and pre-tensioners unit |
| 51 | 7,5 | Tachograph – Cruise contro – Air conditioning controls |
| 52 | 7,5 | Optional relay supply |
| 53 | 7,5 | Instrument panel – rear foglamp |
Fuse box in passenger compartment (driver’s door pillar fuses)
| Fuse | Ampere rating [A] | Allocation |
| 54 | — | Not used |
| 55 | 15 | Heated seats |
| 56 | 15 | Rear passenger 12 V socket |
| 57 | 10 | Programmable additional heating |
| 58 | 10 | Lateral sidelamps |
| 59 | 7,5 | Pneumatic suspension |
| 60 | — | Not used |
| 61 | — | Not used |
| 62 | — | Not used |
| 63 | 10 | Programmable additional heating switch |
| 64 | — | Not used |
| 65 | 30 | Programmable additional heating fan |
Fuse box under bonnet
| Fuse | Ampere rating [A] | Allocation |
| 1 | 40 | ABS pump supply |
| 2 | 50 | Diesel pre-heater unit |
| 3 | 30 | Ignition switch |
| 4 | 20 | Programmable additional heating |
| 5 | 20 | Cab ventilation with programmable additional heating |
| 6 | 40 | Cab fan max speed |
| 60 | ||
| 7 | 40 | Cab fan min speed |
| 50 | ||
| 8 | 40 | Cab fan unit |
| 9 | 20 | Screenwash pump |
| 10 | 15 | Horn |
| 14 | 7,5 | Right hand main beam |
| 15 | 7,5 | Left hand main beam |
| 18 | 7,5 | Engine management |
| 19 | 7,5 | Air conditioning compressor |
| 20 | 30 | Headlamp wash pump |
| 21 | 15 | Fuel pump supply |
| 23 | 15 | ABS electrovalves |
| 30 | 15 | Front foglamps |
Conclusion
For owners and enthusiasts of classic Citroën Relay III / Jumper III from 2015, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Citroën’s craftsmanship and innovation in the automotive industry during that era.
