2019 Jeep Wrangler Fuse Box Diagram & Amperage

Quick Answer

Your 2019 Jeep Wrangler (JL generation) has three main fuse box locations:

• Under-hood: Integrated Power Module (IPM) — Located in the engine compartment, on the passenger side near the battery.
• Passenger Compartment: Located behind the glove box.
• Cargo Area: Located on the passenger side in the cargo area.

Under-Hood Fuse Box (Integrated Power Module - IPM)

This fuse box contains fuses and relays for critical engine functions, powertrain control, major lighting components, and other high-current systems. Always consult the diagram on the inside of the fuse box cover for the most accurate information for your specific trim level.

Relay Locations (Under-Hood IPM):

• R1: Starter Relay
• R2: Fuel Pump Relay
• R3: PCM/ECM Main Relay
• R4: HVAC Blower Motor Relay
• R5: High Beam Headlamp Relay
• R6: Low Beam Headlamp Relay
• R7: A/C Clutch Relay
• R8: Cooling Fan Relay (Low)
• R9: Cooling Fan Relay (High)
• R10: Horn Relay

Passenger Compartment Fuse Box (Behind Glove Box)

This fuse box primarily handles interior electrical components, infotainment, power accessories, and other cabin-related circuits. Access by opening the glove box, then squeezing the sides inward to release it fully. The fuse box is located on the right side.

Cargo Area Fuse Box

This smaller fuse box in the cargo area handles specific power outlets and accessories located in the rear of the vehicle, particularly relevant for models with additional power features or trailer tow packages. It's typically found on the passenger side behind an access panel.

How to Test a Fuse

Testing a fuse is a straightforward process and requires either a fuse puller (usually found in the fuse box lid) or a pair of small needle-nose pliers, and a multimeter or a fuse tester.

1. Safety First: Ensure the vehicle's ignition is off before working with fuses.
2. Locate the Fuse Box: Identify the correct fuse box for the circuit you're troubleshooting.
3. Identify the Suspect Fuse: Refer to the fuse diagrams above or the legend on the fuse box cover to find the fuse for the affected component.
4. Remove the Fuse: Gently pull the fuse straight out using the fuse puller or pliers.
5. Visual Inspection: Hold the fuse up to the light. If the metal wire (filament) inside is broken or charred, the fuse is blown and needs replacement.
6. Test with a Multimeter (for less obvious breaks):
   • Set your multimeter to the continuity setting (usually indicated by a speaker icon) or the ohms setting.
   • Touch one probe to each metal blade of the fuse.
   • If the multimeter beeps (continuity) or shows a very low resistance reading, the fuse is good.
   • If there is no beep or the reading shows "OL" (open circuit), the fuse is blown.
7. Replace with Correct Amperage: Always replace a blown fuse with a new one of the exact same amperage (A) rating and type. Using a fuse with a higher amperage can cause severe electrical damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some circuits are prone to experiencing issues due to common usage or potential system quirks. For a 2019 Jeep Wrangler, common fuses that might blow include:

• Cigar Lighter/12V Outlets (F31, F24, F50): These are frequently blown due to overloads from charging multiple devices, using high-power accessories, or inserting a faulty charger. Check first: Disconnect all accessories from the outlets before replacing the fuse. Ensure the devices you're plugging in are within the fuse's amperage rating.
• Radio/Infotainment (F30): Issues with aftermarket head units, faulty wiring for accessories, or internal unit problems can cause this fuse to blow. Check first: If you've recently installed any aftermarket audio equipment, inspect its wiring. Try disconnecting any USB devices.
• Headlights (F07, F08, F09, F10): While less common on modern vehicles, a short in the wiring, a faulty bulb (especially aftermarket LEDs without proper resistors), or an issue within the lighting system can cause a headlight fuse to blow. Check first: Inspect the specific headlight bulb filament. If you've recently replaced a bulb, ensure it's the correct type and properly installed.
• Blower Motor (F06, F45): A failing blower motor itself, a clogged cabin air filter causing the motor to work harder, or an issue with the blower motor resistor can lead to this fuse blowing. Check first: Listen for any unusual noises from the blower motor. Check the cabin air filter for excessive debris which can restrict airflow.

Always remember to check the printed legend in the fuse box lid for the most accurate and up-to-date information for your specific trim level of the 2019 Jeep Wrangler, as minor variations can occur.

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