2016 Ram 3500 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.
Working on this 2016 Ram 3500? Run just this one job through Repairius.
No big switch. Write the estimate, text it for approval, and get paid on your phone. Keep everything else the way it is.
14-day free trial · credit card required · cancel anytime
Quick Answer
The 2016 Ram 3500 has three main fuse box locations: the Power Distribution Center (PDC) under the hood, a fuse panel on the driver's side instrument panel (dash), and an additional fuse box located in the rear cargo area/trunk.
Under-Hood Power Distribution Center (PDC)
The Power Distribution Center (PDC) is located in the engine compartment, on the driver's side, near the battery. This box contains high-current fuses and relays for major electrical components.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F01 | 40A | Green | ABS Pump |
| F02 | 30A | Pink | ABS Valve Solenoids |
| F03 | 30A | Pink | Trailer Tow Battery Charge |
| F04 | 40A | Green | Trailer Tow Connector (Trailer Brake Control Module) |
| F05 | 50A | Red | Radiator Fan (Diesel) |
| F06 | 60A | Blue | Blower Motor |
| F07 | 30A | Pink | Rear Window Defroster |
| F08 | 20A | Yellow | Fuel Pump Relay |
| F09 | 20A | Yellow | Ignition Run/Start (Powertrain Control Module - PCM) |
| F10 | 20A | Yellow | Headlight Low Beam (Left) |
| F11 | 20A Yellow | Headlight Low Beam (Right) | |
| F12 | 15A | Blue | Headlight High Beam (Left) |
| F13 | 15A | Blue | Headlight High Beam (Right) |
| F14 | 20A | Yellow | Fog Lights |
| F15 | 10A | Red | Anti-lock Brake System (ABS) Module |
| F16 | 15A | Blue | Horn |
| F17 | 10A | Red | Powertrain Control Module (PCM)/Engine Control Module (ECM) - Ignition/Run |
| F18 | 10A | Red | Powertrain Control Module (PCM)/Engine Control Module (ECM) - Battery |
| F19 | 10A | Red | Airbag Control Module (Front Impact Sensor) |
| F20 | 10A | Red | A/C Clutch Relay |
| F21 | 10A | Red | Starter Solenoid |
| F22 | 10A | Red | Transmission Control Module (TCM) |
| F23 | 20A | Yellow | Tail Lights (Left) |
| F24 | 20A | Yellow | Tail Lights (Right) |
| F25 | 20A | Yellow | Park Lights |
| F26 | 20A | Yellow | Brake Lights |
| F27 | 15A | Blue | Interior Lighting |
| F28 | 15A | Blue | Radio/Infotainment System |
Relay Locations (PDC):
The PDC also houses several relays for high-current components. Specific relay locations can vary slightly, so always refer to the diagram on the inside of your PDC cover.
- Run/Start Relay: Powers various ignition-related circuits.
- Fuel Pump Relay: Controls power to the fuel pump.
- Starter Relay: Engages the starter motor.
- Horn Relay: Activates the horn.
- Radiator Fan Relay: (Diesel models) Controls the electric cooling fan.
- A/C Clutch Relay: Engages the air conditioning compressor clutch.
- Headlight Relays (Low/High Beam): Control power to the headlights.
- Fog Light Relay: Controls power to the fog lights.
Driver's Side Instrument Panel (Dash) Fuse Box
This fuse box is located on the driver's side of the dashboard, usually accessible by opening the driver's door and looking at the side of the dash. You may need to remove a small cover.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F01 | 10A | Red | Radio/Infotainment System |
| F02 | 20A | Yellow | Cigar Lighter / 12V Power Outlet (Front) |
| F03 | 15A | Blue | Power Windows |
| F04 | 10A | Red | Instrument Cluster |
| F05 | 10A | Red | Occupant Restraint Controller (Airbag) |
| F06 | 10A | Red | Heater/AC Control Module |
| F07 | 10A | Red | Wiper Motor |
| F08 | 10A | Red | Interior Lights |
| F09 | 15A | Blue | Power Door Locks |
| F10 | 10A | Red | Remote Keyless Entry Receiver |
| F11 | 10A | Red | Heated Seats (where equipped) |
| F12 | 15A | Blue | Power Mirrors |
| F13 | 10A | Red | HVAC Blower Motor Control |
| F14 | 5A | Tan | Cabin Fuse (various interior electronics) |
| F15 | 20A | Yellow | Rear 12V Power Outlet |
| F16 | 10A | Red | Diagnostic Link Connector (DLC) |
Rear Cargo Area/Trunk Fuse Box
Some 2016 Ram 3500 models, particularly those with certain options or a Mega Cab configuration, may have an additional fuse box located in the rear cargo area or trunk. Check behind side trim panels or under the rear seats.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F01 | 20A | Yellow | Rear Power Outlet (Bed or Cargo) |
| F02 | 15A | Blue | Trailer Tow Left Turn/Stop Lamp |
| F03 | 15A | Blue | Trailer Tow Right Turn/Stop Lamp |
| F04 | 10A | Red | Trailer Tow Backup Lamps |
| F05 | 10A | Red | Auxiliary Power Outlets (If equipped) |
| F06 | 20A | Yellow | Power Inverter (If equipped) |
How to Test a Fuse
Testing a fuse is a simple process that can save you time and money. Here's how:
- Locate the Fuse Box: Refer to the Quick Answer section above to find the correct fuse box for the circuit you're troubleshooting.
- Identify the Suspect Fuse: Use the diagrams provided (and always verify with the legend on the fuse box cover) to find the fuse for the malfunctioning component.
- Visual Inspection: Most automotive fuses are clear, allowing you to see if the metal wire inside is broken or melted. If it is, the fuse is blown.
- Use a Fuse Tester or Multimeter: For a more reliable test, especially if a visual inspection is inconclusive, use a fuse tester or a multimeter set to continuity mode.
- With a Fuse Tester: Insert the tester's probes into the small test points on the top of the fuse. If the tester lights up, the fuse is good. If not, it's blown.
- With a Multimeter: Remove the fuse from its slot. Touch one probe to each metal blade of the fuse. If the multimeter shows a reading close to zero ohms (or beeps for continuity), the fuse is good. If it shows an open circuit (OL or infinite resistance), the fuse is blown.
- Replace with Correct Amperage: Always replace a blown fuse with a new fuse of the exact same amperage rating. Using a fuse with a higher amperage can lead to serious electrical damage or fire.
Common Blown Fuses on This Vehicle
While any fuse can blow, some are more common than others due to frequently used accessories or components prone to issues. On the 2016 Ram 3500, common culprits often include:
- Cigar Lighter / 12V Power Outlets (Dash Fuse Box, F02 & F15): These often blow due to overloads from charging multiple devices or using high-power accessories. Check connected devices first.
- Trailer Tow Battery Charge Fuse (PDC, F03): If you frequently tow a trailer with accessories that draw power, this fuse can blow. Ensure your trailer wiring is in good condition.
- Blower Motor Fuse (PDC, F06): Issues with the blower motor, often due to a failing motor or resistor, can cause this fuse to blow. If replacing the fuse doesn't fix the issue, inspect the blower motor and resistor.
- Headlight Fuses (PDC, F10-F13): While not as common as accessory fuses, a short in the headlight circuit or a faulty bulb could cause these fuses to blow. Check your headlight bulbs.
Always check the easiest things first: If an accessory isn't working, make sure it's properly plugged in and functioning on another vehicle if possible. If a light isn't working, check the bulb first. Then, proceed to check the corresponding fuse.
Find a trusted shop on Repairius.
Before you pull a fuse on the 2016 Ram 3500
- 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 2016 Ram 3500
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
2016 Ram 3500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
Browse by make
Running an auto or diesel repair shop?
Compare Repairius to the shop software you're paying for
$99.99/month (first location included), unlimited users, 14-day free trial.