I have a 2002 ford ranger xlt. Initially I was trying to solve a problem with the instrument illumination lights. Fuse 11 looks good but replaced it anyhow. Light bubs OK. I've replaced the headlight and dimmer switches. Looked at the ground box under drivers side... looks good, no rust or loose wires. After all that I decided to test all the fuses with a test light with the ignition switch on. I found that fuses 3,7,24, 28,and 33 had no power. I then removed the fuses and test each connector. Still no power, seems very odd??? The devises these fuses are supposed to fuse all worked, headlights, radio, clutch pedal position, etc. What could be the problem??? My testing light is ok because when I test all other fuses they tested OK. Help please!!!