1989 GMC C1500 tail lights and instrument panel lights

1989 GMC C1500
500,000 MILES • 6 CYL • 2WD • MANUAL
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RJBREEN
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for some reason when i turn the relay switch on for the lights the instrument panel and the tail lights dont turn on. i checked the fuses and they seem fine. what else could be the problem?
May 7, 2010 at 6:42 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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