How to Install a Headlight Relay
- 1). Open your hood and locate the relay box. It is typically located near you vehicle's battery, but if you have trouble identifying it, consult your owner's manual.
- 2). Open the relay panel. Depending on the make and model of your vehicle, you'll be able to simply pry up the panel's cover, or you may have to unscrew it.
- 3). Check the inside of the relay panel cover. Your entire relay diagram will be shown there, including the headlight relay. Find your headlight relay by consulting the diagram.
- 4). Remove the relay and insert a new one by plugging it straight in. Reattach the relay box cover and close your hood.