2024 Volvo VNR Fuse Box Diagram
Fuse numbers, amp ratings, and circuit info for your 2024 VNR.
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Quick Answer
The 2024 Volvo VNR primarily uses a single, consolidated fuse and relay box for ease of access and maintenance. You can find it in the following location:
- Main Fuse & Relay Box: Located in the cab, on the driver's side. You'll need to remove the panel below the steering column to access it. This box contains the majority of the fuses and relays for the truck's various systems.
Driver's Side Fuse & Relay Box
This is the main fuse and relay panel for your 2024 Volvo VNR. Always consult the diagram on the inside of the fuse box cover to confirm the exact fuse placement and amperage for your truck's specific configuration.
Fuses
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 15A | Blue | Windshield Wipers |
| F2 | 10A | Red | Marker Lights (Left Side) |
| F3 | 10A | Red | Marker Lights (Right Side) |
| F4 | 15A | Blue | Headlight (Low Beam, Left) |
| F5 | 15A | Blue | Headlight (Low Beam, Right) |
| F6 | 20A | Yellow | Headlight (High Beam, Left) |
| F7 | 20A | Yellow | Headlight (High Beam, Right) |
| F8 | 10A | Red | ABS Control Module |
| F9 | 15A | Blue | Turn Signals |
| F10 | 10A | Red | Brake Lights |
| F11 | 20A | Yellow | Ignition Switch |
| F12 | 10A | Red | Engine Control Module (ECM) |
| F13 | 15A | Blue | Fuel Pump |
| F14 | 20A | Yellow | Starter Motor Solenoid |
| F15 | 10A | Red | Airbag / SRS |
| F16 | 15A | Blue | Radio / Infotainment System |
| F17 | 20A | Yellow | 12V "Cigar Lighter" Power Outlet 1 |
| F18 | 20A | Yellow | 12V Power Outlet 2 |
| F19 | 30A | Green | Blower Motor (HVAC Fan) |
| F20 | 15A | Blue | A/C Clutch |
| F21 | 10A | Red | Instrument Cluster |
| F22 | 30A | Green | Trailer Brake Control |
| F23 | 25A | Natural | Trailer Lights |
| F24 | 15A | Blue | Horn |
Relays
| Relay # | Circuit |
|---|---|
| R1 | Starter Relay |
| R2 | Ignition Relay |
| R3 | Headlight Relay (Low Beam) |
| R4 | Headlight Relay (High Beam) |
| R5 | Fuel Pump Relay |
| R6 | Blower Motor Relay |
| R7 | A/C Clutch Relay |
How to Test a Fuse
Testing a fuse is a simple process. You can do it with the fuse in or out of the fuse box.
- Visually Inspect: The easiest way is to pull the fuse out and look at the metal strip inside. If the strip is broken, the fuse is blown and needs to be replaced.
- Use a Multimeter: For a more accurate test, set your multimeter to the continuity setting (it often looks like a sound wave symbol). Touch one probe to each of the two metal prongs on top of the fuse. If the multimeter beeps or shows a reading of 0, the fuse is good. If it remains silent or shows an open circuit (OL), the fuse is blown.
Common Blown Fuses on This Vehicle
- 12V Power Outlets (F17, F18): These are some of the most common fuses to blow. The first thing to check is whatever you have plugged into the outlet. Phone chargers with frayed cables or other faulty devices are often the culprit. Unplug everything from the outlets before replacing the fuse.
- Trailer Lights (F23): If your trailer lights aren't working, this fuse is a good place to start. However, a blown fuse often points to a wiring problem in the trailer itself. Inspect the trailer's wiring harness and connectors for any corrosion, damage, or shorts before replacing the fuse.
- Headlights (F4, F5, F6, F7): If a headlight goes out, it's more likely the bulb itself has burned out. However, if you replace the bulb and it still doesn't work, check the fuse next. If the fuse is blown, it could indicate a wiring issue or a problem with the headlight assembly.
Important Note: Always replace a blown fuse with a new one of the exact same amperage. Using a higher amperage fuse can cause serious damage to the electrical system and create a fire hazard.
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Before you pull a fuse on the 2024 Volvo VNR
- Use the label printed on the panel cover or the owner's manual for your exact build. Layouts change with options, model year and build date, so a chart for another truck can be wrong.
- Replace a blown fuse only with the same amp rating. A larger fuse can let wiring overheat.
- A fuse that blows again right away means a short or failing component downstream. Find the cause before replacing it again.
- A good fuse doesn't prove the circuit works — relays, grounds and connectors fail too.
- Many heavy trucks have more than one power distribution point (cab, under-hood or near the batteries), and some circuits use circuit breakers instead of fuses. Some systems have 24-volt starting circuits; confirm the voltage before testing.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work · Find mobile truck repair
More specs for the 2024 Volvo VNR
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2024 Volvo VNR Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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