2015 Ram ProMaster – Fuse Box Diagram & Amperage

Quick Answer

The 2015 Ram ProMaster features three main fuse box locations: under-hood, behind the dash kick-panel (driver's side), and within the cargo area.

Under-hood Fuse Box

The under-hood fuse box, also known as the Power Distribution Center (PDC), is located on the driver's side of the engine compartment, near the battery. It houses many of the fuses and relays for critical engine and high-current systems.

Relays within the Under-hood Fuse Box:

• R1: Starter Relay
• R2: Fuel Pump Relay
• R3: HVAC Blower Motor Relay
• R4: A/C Clutch Relay
• R5: Low Beam Headlight Relay
• R6: High Beam Headlight Relay
• R7: Cooling Fan Low Speed Relay
• R8: Cooling Fan High Speed Relay
• R9: Ignition Relay

Dash Kick-Panel Fuse Box (Cabin Fuse Box)

Located on the driver's side, behind the kick-panel near the footwell, this fuse box handles many of the interior electrical components and accessories. To access it, you will likely need to remove a plastic cover.

Cargo Area Fuse Box

The cargo area fuse box for the 2015 Ram ProMaster is often situated on the driver's side rear panel, sometimes behind a removable access cover. This box typically manages power for cargo-specific accessories, rear lighting, and occasionally some body control modules.

How to Test a Fuse

Testing a fuse is a straightforward process that can save you time and money. Always turn off the ignition and any affected circuits before testing.

1. Visual Inspection: First, carefully pull the suspected fuse from its slot. Many modern fuses have a clear plastic body. Look at the small wire or filament inside. If it's broken or melted, the fuse is blown. For opaque fuses, visual inspection isn't possible.
2. Using a Multimeter: Set your multimeter to the continuity or ohms setting. Touch one probe of the multimeter to each metal blade of the fuse. If the fuse is good, the multimeter will show a reading close to zero ohms (continuity) or beep if it has an audible continuity tester. If the fuse is blown, the multimeter will show an "OL" (open loop) or no reading, indicating a break in the circuit.
3. Using a Test Light: A powered test light can also be used. With the ignition on (but the circuit you're testing not necessarily activated, depending on the circuit), touch the tip of the test light to the small metal test points on the top of the fuse (if available). The light should illuminate on both sides. If it only lights up on one side or not at all, the fuse is blown. You can also pull the fuse and probe the terminals in the fuse box. One side should have power, the other should not if the fuse is blown.

Always replace a blown fuse with one of the exact same amperage rating and type to prevent electrical damage to your vehicle.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more commonly affected due to their function or the loads they protect. If you're experiencing an electrical issue with your 2015 Ram ProMaster, these are good places to start checking:

• Cigar Lighter / 12V Power Outlets (F30): These are frequently overloaded by charging multiple devices or using high-current accessories. If your phone charger or accessory isn't working, this is the first fuse to check.
• Headlight Fuses (F07, F08, F09, F10): Headlights are used constantly, and a short in a bulb or wiring can cause these to blow. If one or both of your headlights are out, check these fuses. Remember to check both low and high beam fuses.
• Blower Motor Fuse (F02) and Relay (R3): If your fan isn't working on any speed, this is a prime suspect. It carries a significant load, especially on higher settings.
• Trailer Tow Fuses (F51, F52, F53, F54, F19): If you tow frequently, issues with trailer wiring or a short in the trailer itself can often blow these fuses, leading to non-functional trailer lights or brakes. Always check the trailer wiring first if these fuses keep blowing.
• Radio / Infotainment Fuse (F31): Aftermarket installations or issues with the radio unit itself can sometimes cause this fuse to blow, leading to a dead stereo system.

Always consult your vehicle's owner's manual and the specific fuse legend printed on the inside of your fuse box cover for the most accurate and trim-specific information. Fuse layouts can vary slightly by trim level and optional equipment.

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