Where is the Horn relay for the Chevy 20 Van 1991?

The horn relay for a 1991 Chevy 20 Van is typically located in the underhood fuse box, which is situated near the front of the engine compartment on the driver's side. You can identify it by referring to the diagram on the fuse box cover, which indicates the exact position of the relay. If you're having trouble locating it, consulting the vehicle’s service manual can provide additional guidance.