2023 Jeep Grand Cherokee Fuse Box Diagram & Amperage

Quick answer

The 2023 Jeep Grand Cherokee has three main fuse box locations:

• Under-hood Power Distribution Center: Located in the engine bay, on the passenger side near the battery.
• Interior Fuse Box: Located in the passenger cabin, under the dashboard on the passenger side, behind a trim panel.
• Rear Power Distribution Center: Located in the cargo area, on the passenger side, behind an access panel.

Under-hood Power Distribution Center

This fuse box, often called the Power Distribution Center (PDC), contains high-amperage fuses and relays that control major vehicle systems. You'll find it on the passenger side of the engine compartment. The lid of the fuse box has a diagram to help you identify each component.

Relay Locations:

• Starter Relay: Controls power to the starter motor.
• Fuel Pump Relay: Controls the fuel pump.
• A/C Clutch Relay: Engages the air conditioning compressor.
• Blower Motor Relay: Controls the main cabin fan speed.

Interior Fuse Box (Passenger Kick Panel)

This fuse panel is for various interior electronics and control modules. It's located on the right side of the passenger footwell, behind an easily removable trim panel.

Rear Power Distribution Center (Cargo Area)

This third fuse box handles circuits for rear-of-vehicle components and is located behind a panel on the passenger side of the cargo area.

Note: Fuse numbers and circuits can vary based on your vehicle's trim level and options (e.g., Laredo, Limited, Overland, Summit, 4xe). Always confirm the fuse layout by checking the diagram printed on the inside of your fuse box cover.

How to test a fuse

Testing a fuse is a simple process.

1. Turn off the vehicle.
2. Locate the suspect fuse.
3. Remove the fuse. Most fuse boxes have a small plastic puller tool to make this easier.
4. Inspect the fuse. Look at the metal strip inside the plastic housing. If the strip is broken or melted, the fuse is blown and needs to be replaced.
5. Use a multimeter (optional but recommended). Set the multimeter to the continuity setting (it often looks like a sound wave symbol). Touch the probes to each metal tab on the fuse. If the multimeter beeps or reads close to zero ohms, the fuse is good. If it remains silent or shows 'OL' (Open Loop), the fuse is blown.

When replacing a fuse, always use a new fuse with the exact same amperage rating. Using a higher-rated fuse can cause severe damage to the electrical circuit and create a fire hazard.

Common blown fuses on this vehicle

• Cigar Lighter / 12V Power Outlet Fuse: This is one of the most common fuses to blow. It's often caused by a faulty phone charger, a coin falling into the outlet, or plugging in a device that draws too much power. If this fuse blows, first check the outlet for any foreign objects before replacing the fuse.
• Fuel Pump Fuse: If your Grand Cherokee cranks but won't start, a blown fuel pump fuse could be the culprit. If you replace the fuse and it blows again immediately, it may indicate a failing fuel pump or a short in the wiring that needs professional diagnosis.
• Trailer Tow Fuses: If your trailer lights or brakes aren't working, check the trailer-related fuses in both the under-hood and rear fuse boxes. Wiring issues on the trailer itself are a frequent cause. Inspect the trailer's wiring harness and connector for corrosion or damage before suspecting the vehicle.

Electrical diagnosis can be complex. If you've replaced a fuse and it blows repeatedly, or if you're not comfortable performing these checks yourself, it's best to have a professional technician take a look.

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