2022 Ram 2500 – Fuse Box Diagram & Amperage
Complete guide to all fuse box locations, amperage, and circuit protection for your 2022 Ram 2500.
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Quick Answer
The 2022 Ram 2500 typically has three main fuse box locations:
- Under-hood Fuse Box: Located in the engine compartment on the driver's side, near the battery.
- Instrument Panel Fuse Box (Dash Kick Panel): Located on the driver's side, behind a cover on the kick panel.
- Rear Power Distribution Center (Trunk/Cargo): Located in the rear of the vehicle, often under the rear seat or in a sidewall panel.
Under-hood Fuse Box
The under-hood fuse box, also known as the Power Distribution Center (PDC), contains high-current fuses and relays for critical vehicle systems. Always verify the specific fuse layout with the diagram printed on the fuse box cover.
Common Fuses and Relays in the Under-hood Box:
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F01 | 20A | Yellow | Powertrain Control Module (PCM) / Engine Control Module (ECM) |
| F03 | 20A | Yellow | Fuel Pump |
| F04 | 30A | Green | Anti-lock Brake System (ABS) Pump |
| F05 | 10A | Red | Ignition Run/Start |
| F08 | 40A | Green | Blower Motor (HVAC) |
| F10 | 20A | Yellow | Headlights (Low Beam - Left) |
| F11 | 20A | Yellow | Headlights (Low Beam - Right) |
| F12 | 15A | Blue | Headlights (High Beam - Left) |
| F13 | 15A | Blue | Headlights (High Beam - Right) |
| F15 | 10A | Red | A/C Clutch |
| F20 | 30A | Green | Trailer Tow Connector (Trailer Brake) |
| F22 | 15A | Blue | Horn |
| F25 | 40A | Green | Starter Solenoid |
| F30 | 15A | Blue | O2 Sensors |
Relay Locations (Under-hood):
- R1: Starter Relay
- R2: Fuel Pump Relay
- R3: Headlight (Low Beam) Relay (often two separate for left/right)
- R4: Headlight (High Beam) Relay (often two separate for left/right)
- R5: Horn Relay
- R6: A/C Clutch Relay
- R7: ABS Pump Relay
- R8: Blower Motor Relay
Instrument Panel Fuse Box (Driver's Side Kick Panel)
This fuse box mostly handles interior accessories and lower-amperage circuits. It's located behind a removable panel on the driver's side kick panel. Always consult the diagram on the back of the cover.
Common Fuses in the Instrument Panel Box:
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F01 | 10A | Red | Radio / Infotainment System |
| F02 | 15A | Blue | Power Outlet (Cigar Lighter - Front) |
| F03 | 10A | Red | Airbag Control Module (ACM) |
| F05 | 20A | Yellow | Power Windows |
| F06 | 10A | Red | Instrument Cluster |
| F08 | 5A | Tan | Tail Lights / Parking Lights |
| F09 | 10A | Red | Brake Lights / Stop Lights |
| F10 | 15A | Blue | Wiper Motor |
| F12 | 10A | Red | HVAC Controls |
| F15 | 20A | Yellow | Power Outlet (Console) |
| F18 | 10A | Red | ODB-II Diagnostic Port |
| F20 | 15A | Blue | Seat Heaters (Driver) |
| F21 | 15A | Blue | Seat Heaters (Passenger) |
Rear Power Distribution Center (Trunk/Cargo Area)
On some 2022 Ram 2500 models, especially those with extensive rear power features or certain trim levels, a rear power distribution center might be present. Its exact location can vary, but it
Before you pull a fuse on the 2022 Ram 2500
- 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.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work
More specs for the 2022 Ram 2500
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
2022 Ram 2500 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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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-06-24.