2020 Volvo VNL Fuse Box Diagram & Amperage
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick answer
On the 2020 Volvo VNL, you'll find the primary fuse and relay box in the cab, behind a kick-panel on the driver's side dashboard. There are no fuse boxes in the trunk or cargo area on this model.
Driver's Side Dash Fuse Box
This is the main fuse box for your 2020 Volvo VNL. To access it, remove the kick-panel on the driver's side of the dashboard.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 15A | Blue | Windshield Washer/Wiper |
| F2 | 10A | Red | Power Mirror |
| F3 | 20A | Yellow | Marker Lights (LH) |
| F4 | 20A | Yellow | Marker Lights (RH) |
| F5 | 15A | Blue | Headlight, High Beam (LH) |
| F6 | 15A | Blue | Headlight, High Beam (RH) |
| F7 | 15A | Blue | Headlight, Low Beam (LH) |
| F8 | 15A | Blue | Headlight, Low Beam (RH) |
| F9 | 10A | Red | ABS |
| F10 | 10A | Red | Blower Motor |
| F11 | 30A | Green | Power Windows |
| F12 | 10A | Red | Turn Signals |
| F13 | 15A | Blue | Radio/Infotainment |
| F14 | 15A | Blue | Cigar Lighter/12V Power Outlet |
| F15 | 20A | Yellow | Fuel Pump |
| F16 | 10A | Red | Ignition |
| F17 | 10A | Red | ECM/PCM |
| F18 | 30A | Green | Trailer Brake |
| F19 | 10A | Red | Airbag |
| F20 | 15A | Blue | A/C Clutch |
| F21 | 10A | Red | Tail/Park Lights |
| R1 | - | - | Starter Relay |
| R2 | - | - | Ignition Relay |
| R3 | - | - | Fuel Pump Relay |
| R4 | - | - | Headlight Relay |
| R5 | - | - | Blower Motor Relay |
How to test a fuse
To test a fuse, you'll need a fuse tester or a multimeter. With the ignition off, pull the fuse from its slot and visually inspect it. If the metal strip inside is broken, the fuse is blown. If you can't see the strip, use a multimeter set to continuity. Place a probe on each blade of the fuse. If the multimeter beeps or shows a reading of 0, the fuse is good. If it doesn't beep or the reading is infinite, the fuse is blown.
Common blown fuses on this vehicle
- Cigar Lighter/12V Power Outlet: This fuse often blows due to faulty phone chargers or other accessories. If you find this fuse blown, unplug all accessories from the power outlets before replacing the fuse.
- Trailer Brake: If you frequently tow heavy loads, this fuse can be under a lot of stress. If it blows, inspect the trailer wiring for any shorts or damage.
- Headlights: A blown headlight fuse is often caused by a burnt-out bulb. If you replace the fuse and it blows again, you may have a wiring issue.
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Before you pull a fuse on the 2020 Volvo VNL
- 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 2020 Volvo VNL
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
2020 Volvo VNL 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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