2022 Ford Explorer Fuse Box Diagram & Amperage

Quick Answer

The 2022 Ford Explorer has three main fuse box locations: under the hood (Battery Junction Box), inside the cabin (Body Control Module/Smart Junction Box) located behind the glove box, and in the rear cargo area (Rear Junction Box) on the passenger side.

Under-Hood Fuse Box (Battery Junction Box - BJB)

The under-hood fuse box, also known as the Battery Junction Box (BJB), is located in the engine compartment on the driver's side, near the battery. It contains fuses and relays for critical engine functions, powertrain, and some high-current accessories.

Relay Locations (BJB):

• R1: Starter Relay
• R2: Fuel Pump Relay
• R3: PCM/ECM Relay
• R4: Cooling Fan Relay
• R5: A/C Clutch Relay
• R6: Horn Relay

Cabin Fuse Box (Body Control Module/Smart Junction Box - BCM/SJB)

The cabin fuse box, also known as the Body Control Module (BCM) or Smart Junction Box (SJB), is located behind the glove box on the passenger side. You will need to lower or remove the glove box to access it. This fuse box controls many interior electrical components, infotainment, and convenience features.

Rear Cargo Area Fuse Box (Rear Junction Box - RJB)

The rear cargo area fuse box, sometimes referred to as the Rear Junction Box (RJB), is located on the passenger side of the cargo area, behind a trim panel. This fuse box typically controls power to rear accessories, trailer wiring, and convenience features.

How to Test a Fuse

Testing a fuse is a straightforward process that can help diagnose electrical issues. You will need a fuse puller (usually found in one of the fuse boxes) and a multimeter or a fuse tester.

1. Locate the fuse: Refer to the appropriate fuse box diagram above and your vehicle's owner's manual to find the fuse for the component that isn't working.
2. Turn off the ignition: Always ensure the vehicle's ignition is off to prevent electrical shorts or injury.
3. Remove the fuse: Use the fuse puller to carefully remove the suspect fuse. Do not use pliers or other metal tools, as you could damage the fuse or the fuse box.
4. Visually inspect: Hold the fuse up to the light. If the metal wire or strip inside is broken or melted, the fuse is blown and needs to be replaced.
5. Test with a multimeter (for less obvious breaks):
   • Set your multimeter to the "ohms" or continuity setting.
   • Touch one probe to each metal blade of the fuse.
   • A good fuse will show a reading close to zero ohms or beep (indicating continuity). A blown fuse will show an "OL" (open loop) or no reading.
6. Replace the fuse: If the fuse is blown, replace it with a new fuse of the exact same amperage (A) and type. Using a fuse with a higher amperage can lead to serious electrical damage or fires.

Common Blown Fuses on This Vehicle

While fuse issues can occur randomly, some fuses are more prone to blowing due to their circuit demands or common accessory use. On the 2022 Ford Explorer, common blown fuses often involve:

• Cigar Lighter/Power Outlets (F22, F37, F41): These are frequently blown when using high-power accessories, faulty chargers, or if coins or other metallic objects fall into the outlets. Always check the device you're plugging in and the outlet itself.
• Blower Motor (F9): A failing blower motor or an obstruction in the HVAC system can cause the motor to draw excessive current, blowing this fuse. If this fuse blows repeatedly, have your blower motor and HVAC system inspected.
• Trailer Brake Controller (F13) & Trailer Tow Lights (F43): Issues with trailer wiring, short circuits in the trailer itself, or overloading can cause these fuses to blow. Inspect your trailer wiring and connections if you experience issues.
• Radio/Infotainment System (F21): While less common, certain electrical glitches or aftermarket accessory installations can sometimes cause this fuse to blow. If your radio isn't working, check this first, but also consider whether any recent electrical work was done.
• Headlights (F5, F6, F7, F8): Although modern vehicles have robust headlight systems, a short in the wiring or a faulty bulb can occasionally cause a headlight fuse to blow. Check for any visible damage to the headlight assembly or wiring.

Remember to always refer to your specific vehicle's owner's manual and the printed legend on the fuse box lid, as fuse layouts can vary slightly by trim level or optional equipment.

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