2017 Ram 2500 Fuse Box Diagram & Amperage

Quick Answer

The 2017 Ram 2500 has three main fuse box locations: the Power Distribution Center (PDC) under the hood, a fuse box located in the passenger compartment (behind the passenger kick panel), and a fuse box in the rear of the vehicle (typically in the cargo area/trunk, though less common for primary vehicle functions in a truck).

Under-hood Power Distribution Center (PDC)

The Power Distribution Center (PDC) is located in the engine compartment, near the battery. It contains high-current fuses and relays for major electrical components. Always verify the fuse number and rating against the diagram printed on the inside of the fuse box cover, as variations can occur based on trim level and options.

Relay Locations (PDC):

• R01: Fuel Pump Relay
• R02: Starter Relay
• R03: A/C Clutch Relay
• R04: Radiator Fan Relay (if equipped)
• R05: Headlight Low Beam Relay
• R06: Headlight High Beam Relay
• R07: Trailer Tow Park Lamp Relay
• R08: Trailer Tow Left Stop/Turn Relay
• R09: Trailer Tow Right Stop/Turn Relay

Passenger Compartment Fuse Box

This fuse box is typically located behind the passenger side kick panel. Remove the kick panel to access the fuses. This box handles a variety of interior electrical components.

Rear Fuse Box / Trailer Wiring Access

While not containing a full fuse box for primary vehicle functions like the PDC or cabin box, the 2017 Ram 2500 often has a small fuse panel or individual fuses located near the rear for trailer wiring or specific accessories. This is typically found in the cargo area or near the rear bumper hitch wiring harness. Consult your owner's manual for the exact location and specific fuses related to trailer tow accessories if not covered in the PDC.

How to Test a Fuse

Testing a fuse is a straightforward process and requires a few basic tools:

1. Safety First: Always turn off the ignition and remove the key before working with fuses. This prevents accidental shorts or injuries.
2. Locate the Fuse: Refer to the fuse box diagram (either in your owner's manual or on the fuse box cover) to identify the suspected fuse.
3. Visual Inspection: Pull the fuse straight out using a fuse puller (usually found in the fuse box or tool kit). Hold the fuse up to the light. If the metal wire or strip inside is broken or melted, the fuse is blown and needs replacement.
4. Multimeter Test (for less obvious breaks): If a visual inspection isn't clear, use a multimeter. Set the multimeter to the "ohms" or "continuity" setting. Touch the probes to the two metal terminals on top of the fuse. A good fuse will show a very low resistance (close to 0 ohms) or beep if it has a continuity function. A blown fuse will show an open circuit or no reading.
5. Replace with Correct Amperage: Always replace a blown fuse with one of the exact same amperage rating. Using a fuse with a higher amperage can lead to 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, certain circuits are more prone to issues, especially in heavy-duty trucks like the Ram 2500 due to the demands placed on them. If you're experiencing an electrical issue, here are some common areas to check first:

• Trailer Brake/Trailer Tow Fuses (PDC and Rear Fuse Box): These fuses are frequently subjected to high loads, especially when towing heavy trailers, or if there's a short in the trailer's wiring. If your trailer lights or brakes aren't working, check F12, F13, F14, F15 in the PDC, and R01, R02, R03 in the rear fuse box.
• Cigar Lighter/12V Outlets (Passenger Compartment): Fuses M02 and M03 are common culprits, often blowing when faulty devices are plugged in or high-draw accessories are used. If your phone charger or power inverter stops working, check these first.
• Blower Motor (PDC F03): The blower motor fuse can blow if the motor is failing, if there's an obstruction in the blower fan, or if there's a short in the wiring. If your HVAC fan isn't working, this is a prime suspect.
• Headlight Fuses (PDC F06, F07, F08, F09): Headlight fuses can blow due to bulb failure, a short in the wiring, or an intermittent issue within the headlight assembly. Always check both high and low beam fuses if one isn't working.
• Radio/Infotainment (Passenger Compartment M01): If your radio or UConnect system suddenly goes dark, check this fuse. Often, it's a minor electrical glitch or a temporary surge.

Before replacing any fuse, try to identify what might have caused it to blow. For instance, if a trailer fuse blows repeatedly, there might be an issue with your trailer's wiring or an overloaded circuit. If a fuse blows immediately after replacement, there's likely a short circuit that needs professional diagnosis.

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