2015 Ram 2500 Fuse Box Diagram & Amperage

Quick Answer

The 2015 Ram 2500 has two primary fuse box locations: the Power Distribution Center (PDC) located under the hood, and a fuse panel located inside the cabin, accessible in the passenger side kick panel. Additionally, some models may have an auxiliary fuse panel for specific accessories.

Power Distribution Center (PDC) - Under Hood

The Power Distribution Center (PDC) is located under the hood on the driver's side, near the battery. This box contains high-current fuses and relays for major electrical systems.

Relay Locations in PDC:

• R1: Starter Relay
• R2: Fuel Pump Relay
• R3: HVAC Blower Motor Relay
• R4: ABS Pump Motor Relay
• R5: Headlight Low Beam Relay (Left)
• R6: Headlight Low Beam Relay (Right)
• R7: Headlight High Beam Relay (Left)
• R8: Headlight High Beam Relay (Right)
• R9: Horn Relay
• R10: A/C Clutch Relay
• R11: Trailer Tow Park Lamp Relay
• R12: Trailer Tow Stop/Turn Lamp Relay (Left)
• R13: Trailer Tow Stop/Turn Lamp Relay (Right)

Note: Always refer to the fuse legend printed on the underside of the PDC cover for the most accurate and up-to-date information for your specific vehicle's trim level.

Passenger Compartment Fuse Panel - Kick Panel

This fuse panel is located on the passenger side of the dashboard, behind the kick panel. To access it, you will need to remove the plastic kick panel trim. This panel typically houses fuses for various interior accessories, convenience features, and some control modules.

Note: As with the PDC, always consult the fuse diagram printed on the inside of the access panel cover for the most accurate information. Fuse configurations can vary based on trim levels and optional equipment.

How to Test a Fuse

Testing a fuse is a straightforward process that can help you diagnose electrical issues. Here's how you do it:

1. Safety First: Always turn off the ignition and remove the key before working with fuses. This prevents accidental short circuits or electrical shocks.
2. Locate the Fuse: Refer to the appropriate fuse box diagram (from your vehicle's owner's manual or the fuse box cover) to identify the fuse you suspect is blown.
3. Inspect Visually: Most fuses have a small wire or filament inside. If this wire is broken or melted, the fuse is blown and needs to be replaced. Some fuses are opaque, so a visual inspection may not be possible.
4. Use a Fuse Tester or Multimeter: For opaque fuses or to confirm a visual inspection:
   • Fuse Tester: A simple fuse tester with a light will illuminate if the fuse is good. Touch the probes to the test points on top of the fuse (small metal contacts).
   • Multimeter: Set your multimeter to continuity mode (or ohms). Place the probes on the two metal test points on the top of the fuse. A good fuse will show very low resistance or continuity (the multimeter may beep). If it shows infinite resistance or no continuity, the fuse is blown.
5. Replace with Correct Amperage: If a fuse is blown, replace it with a new fuse of the exact same amperage rating and type. Using a fuse with a higher amperage can lead to serious electrical system damage or fire. The color of the fuse typically indicates its amperage.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more commonly affected due to constant use or higher current draw. On a 2015 Ram 2500, common culprits often include:

• Cigar Lighter / 12V Power Outlets (Fuse M02, M04): These fuses frequently blow due to overloading from charging multiple devices, using high-power accessories, or inserting foreign objects into the outlet. If your phone charger or other accessories aren't working, check these first.
• Blower Motor (Fuse F02, M19): If your HVAC fan isn't working on any speed, or only works on certain speeds, the blower motor fuse in the PDC (F02) or the blower control fuse in the cabin (M19) could be the issue. A failing blower motor can draw excessive current and blow the fuse.
• Trailer Tow Fuses (F03, F07, F08, F14, F17, M10): Given the Ram 2500's towing capabilities, these fuses can blow if there's a short in the trailer's wiring, an incompatible trailer connected, or an issue with the trailer brake controller. If you have issues with trailer lights or brakes, check all relevant trailer towing fuses.
• Radio / Infotainment (Fuse M01, F16): Problems with the radio, Uconnect system, or other infotainment features could be traced back to this fuse. Occasionally, a navigation update or a faulty head unit can cause a surge.
• Headlights / Tail Lights (F09, F10, F20, F21, F24): If one or both headlights or tail lights stop working, and the bulbs are confirmed good, a fuse is a likely culprit. Remember to check both low beam and high beam fuses separately.

What to Check First: When a circuit stops working, always start by checking the easiest things: the related fuse. If the fuse is good, then investigate bulbs (for lighting issues), relays, or the component itself. Remember to always replace a blown fuse with one of the exact same amperage.

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