How do you repair a horn that doesn't work on a 94 Volvo 940?

To repair a non-functioning horn on a 1994 Volvo 940, first check the fuse related to the horn in the fuse box, as a blown fuse is a common issue. If the fuse is intact, test the horn relay and ensure it's functioning properly. Next, inspect the horn itself for any damage or corrosion, and check the wiring connections for any loose or frayed wires. If necessary, replace the horn or repair any faulty connections to restore functionality.