Is the relay bad if it clicks but the horn does not sound in 03 Toyota Echo?

If the relay clicks but the horn does not sound in your 2003 Toyota Echo, it may indicate that the relay is functioning but there could be an issue elsewhere in the circuit. Possible problems could include a faulty horn, a blown fuse, or a wiring issue. Testing the horn directly or checking the fuse can help narrow down the cause. If the horn works when directly powered, the relay or other components in the circuit may need further inspection.