Is there a relay switch for fog lights on a 2004 jeep tj?

Yes, the 2004 Jeep TJ typically includes a relay switch for the fog lights, which is part of the vehicle's electrical system. The relay is usually located in the fuse box under the hood. If the fog lights are not functioning properly, checking the relay, as well as the associated fuses and wiring, can help diagnose the issue. Always refer to the owner's manual for specific information regarding the fog light circuit and components.