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The 2002 Chevy Impalas headlight receives its power from the headlight relay, like all other modern vehicles. If this relay is faulty, your headlights may not work even after youve replaced the bulbs. The first step to replacing the relay is locating it. There are several fuse boxes in your Impala that contain a host of relays and fuses. The box with the headlight relay is located inside the vehicle on the edge of the dash.
Step 1
Turn the Impalas engine off. Open the driver-side door. Inspect the end of the dash on the drivers side, near the steering wheel. Youll see a panel labeled "Fuses." It has a small handle on it.
Step 2
Grasp the handle and pull the panel off. Behind it youll find several relays and fuses.
Look in the lower-left corner of the compartment. Youll see the headlight relay. Its labeled "Headlamp Relay."
