Where is the wiper motor relay for a 1999 1500 Chevy Silverado?

The wiper motor relay for a 1999 Chevy Silverado 1500 is located in the under-hood fuse and relay box, which is typically found on the driver's side of the engine compartment. You can identify the relay by checking the diagram on the cover of the fuse box. If you're having trouble finding it, refer to the owner's manual for more detailed information regarding the specific relay placement.