Where can you find information about the fuse size for the horn of a vehicle?

The service manual is the correct resource for finding information about the fuse size for the horn of a vehicle. This manual provides detailed specifications and diagrams specific to the vehicle's electrical system, including the size and type of fuses needed for various components like the horn. Service manuals are designed to assist technicians and vehicle owners in performing repairs and maintenance accurately, ensuring they have the most precise information for troubleshooting and parts replacement.

While the owner’s manual and the fuse box cover may contain useful general information regarding the vehicle's fuses, they may not always specify the exact size needed for components such as the horn. The vehicle's dashboard typically does not provide technical details about electrical components or fuses. Therefore, for detailed and specific information regarding fuse sizes and functions, the service manual is the most reliable source.