* Under the hood in the fuse box: This is the most common location. The fuse box is usually located near the battery. Check the fuse box diagram (often on the inside of the fuse box lid) to locate the horn relay.
* Inside the passenger compartment fuse box: Some models might have it in the fuse box located inside the car, often under the dashboard. Again, check the diagram.
* Mounted to the body: Less common, but it's possible the relay is mounted directly to the body or chassis in a less accessible location.
To find it:
1. Consult your owner's manual: This is the best place to start. The manual should have a diagram showing the location of all relays and fuses.
2. Look at the fuse box diagrams: Even without the manual, the fuse box lids often have diagrams showing what each fuse and relay controls.
3. Use a test light or multimeter: If you can't find it visually, you can use a test light or multimeter to trace the horn circuit back to the relay. This is more advanced and requires some electrical knowledge.
Without knowing the exact year and model of your Buick LeSabre, it's impossible to give a precise location. The best approach is to consult your owner's manual or the diagrams on the fuse box covers.
