How to Replace Your Car's Fuse Box | YourMechanic Advice Author: Jessica Howe Disconnect the battery cable. Disconnect the negative terminal connected to the battery. This way Locate and open the fuse panel. Open the hood and locate the fuse panel. It will have a cover over Disconnect fuse box power supply. Once the lid is off and set aside, find and disconnect the power Disconnect the panel’s housing. Remove any retaining bolts holding the fuse box in place. They will See all full list on yourmechanic How to Tell If a Vehicle Fuse Box Is Bad | It Still Runs Inspect the fuse box, or power center, located under the hood, often very near the battery. It has a black plastic lid and houses all the main power breakers. Remove the cover and inspect the fuses, circuit breakers and relays. Use a wrench to remove the hold-down bolts that attach the power center to the car.