Several electrical accessories in the vehicle, such as the fuel injection system,
Horns, starter, and fog lamps, utilize relays to transmit electrical signals to the components. Relays operate using a low-current circuit, known as the control circuit, to open and close a high-current circuit, referred to as the power circuit. A defective relay will prevent the associated component from functioning properly. Most relays are installed in the engine compartment and interior fuse/relay boxes, with the interior fuse box located under the right passenger side of the instrument panel beneath a cover, while the engine compartment fuse and fusible link box can be found behind the battery.