Chevrolet Silverado GMT800 1999-2006 Fuse Box Diagram Chevrolet Silverado 1999-2006: Fuse Box Diagram. Knowing your way around your truck's fuse box(es) can mean the difference between resolving a minor electrical issue yourself, or paying a professional a hefty sum to do it. Here's what you need to know about your Chevy Silverado. Interior Fuse Box Location: 1999-2007 Chevrolet Silverado 1500 The video above shows how to replace blown fuses in the interior fuse box of your 1999 Chevrolet Silverado 1500 in addition to the fuse panel diagram location. Electrical components such as your map light, radio, heated seats, high beams, power windows all have fuses and if they suddenly stop working, chances are you have a fuse that has blown out. Chevrolet Silverado 1500 - 1999 Fuse Box Diagram Silverado 1500 - 1999 Fuse Box; yellow. blue . 2-12. Testing the Alarm. The alarm can be tested by following these steps: 1. From inside the vehicle, lower the driver’s window. and open the driver’s door. 2. Activate the system by locking the doors with the. power door lock switch while the door is open, or.