2019 Ram 2500 – Fuse Box Diagram & Amperage

Quick Answer

The 2019 Ram 2500 typically has two main fuse box locations: the Power Distribution Center (PDC) under the hood and an Integrated Power Module (IPM) located under the dashboard on the passenger side. Some models with specific options might have an additional fuse box in the rear cargo area or under the rear seat for accessories like the trailer brake controller or premium audio systems. Always consult your owner's manual and the fuse box lid for the most accurate and up-to-date information for your specific trim level.

Under-Hood Power Distribution Center (PDC)

The Power Distribution Center (PDC) is located in the engine compartment, typically on the driver's side near the battery. This module houses many of the larger fuses and relays for critical vehicle systems.

Relay Locations (Under-Hood PDC):

• R01: Starter Relay
• R02: Fuel Pump Relay
• R03: HVAC Blower Relay
• R04: A/C Clutch Relay
• R05: Horn Relay
• R06: Trailer Tow Park Lamp Relay (If Equipped)
• R07: Trailer Tow Left Turn/Stop Lamp Relay (If Equipped)
• R08: Trailer Tow Right Turn/Stop Lamp Relay (If Equipped)

Passenger Side Integrated Power Module (IPM) - Dash Panel

This fuse box, often referred to as the "cabin" fuse box, is typically located behind a panel on the passenger side kick panel or under the glove compartment. It primarily controls interior electrical components and accessories.

Relay Locations (Passenger Side IPM):

• R10: Accessory Relay
• R11: Ignition Run Relay
• R12: Blower Motor Relay (Rear - if equipped)

How to Test a Fuse

Testing a fuse is a straightforward process that can help you diagnose electrical issues. The simplest method involves a fuse puller (often found in the fuse box lid) and visual inspection:

1. Locate the Fuse Box: Identify the correct fuse box using the information above and your owner's manual.
2. Refer to the Diagram: Locate the specific fuse you suspect is blown using the diagram on the fuse box lid.
3. Remove the Fuse: Carefully pull the fuse straight out using the fuse puller or small needle-nose pliers.
4. Visual Inspection: Most automotive fuses have a small wire or metal strip inside. If this wire is broken or melted, the fuse is blown. You might also see a discolored or blackened casing.
5. Use a Multimeter (for a more accurate test): If a visual inspection isn't conclusive, set your multimeter to the continuity setting (often indicated by a speaker icon). Touch the probes to the metal contact points on top of the fuse. If the multimeter beeps or shows a reading close to zero ohms, the fuse is good. If there's no beep or an "OL" (open loop) reading, the fuse is blown.
6. Replace the Fuse: If the 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 cause severe damage to your vehicle's electrical system.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more commonly affected due to their circuits or high usage. On the 2019 Ram 2500, common blown fuses often include those associated with:

• Cigar Lighter / 12V Power Outlets: These fuses (F32, F33 in the IPM) are frequently blown due to overloads from charging multiple devices or using high-power accessories. If your phone charger or air compressor stops working, check these first.
• Blower Motor: Fuse F03 in the under-hood PDC protects the front blower motor. If your HVAC fan stops working, this is a prime suspect, especially after heavy use or if there's a blockage in the system.
• Trailer Brake Control (if equipped): Fuse F08 in the under-hood PDC is dedicated to the trailer brake controller. If you experience issues with your trailer brakes, check this fuse. Often, a short in the trailer wiring or an improperly wired accessory can cause it to blow.
• Headlights: Fuses F09 through F12 in the under-hood PDC protect the headlights. If one or both of your headlights go out, check these fuses. While less common than bulb failure, a blown fuse can be the culprit.
• Radio / Infotainment: Fuse F30 in the IPM protects the radio system. If your radio suddenly stops working, this is a good place to start, though modern infotainment systems can have more complex issues than a simple blown fuse.

What to Check First: Before replacing a fuse, try to identify the cause of the blown fuse. Overloading a circuit, a short circuit, or a malfunctioning component can repeatedly blow fuses. If a newly installed fuse blows immediately, there's likely a larger electrical issue that needs professional diagnosis.

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