* Under the hood, in the fuse box: This is the most common location. The fuse box is typically located near the battery, often on the driver's side fender well. Look carefully within the fuse box itself; relays are usually plugged into sockets. The horn relay may be labeled, or you might need to consult a wiring diagram (available online, often for a fee, or in a repair manual).
* Under the dash: Less common, but possible. Look for a fuse box or relay panel under the dashboard.
To find it, you'll need to:
1. Consult a wiring diagram: This is the most reliable method. A wiring diagram will show you exactly where the horn relay is located and its connections. You can find these diagrams online through sites selling repair manuals or from some enthusiast forums.
2. Check the fuse box carefully: Look for a relay that looks similar to other relays in the box, and check its markings. You might need to remove some relays to see the markings fully.
3. Trace the horn wires: If you can identify the wires going to the horn, you can follow them back to the relay. Be careful when doing this – working with car wiring can be dangerous.
Without a wiring diagram specific to your 1989 Camaro's trim level, pinpointing the exact location is difficult. A Haynes or Chilton repair manual for your car's year and model will be invaluable for this type of task.
