1991 Gmc Van Headlights Including Low High Beams Work Cause

1991 GMC VAN
100,000 MILES
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ANONYMOUS
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  • 1 POST
Headlights including low and high beams dont work. What is the cause?
Jan 3, 2013 at 8:41 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
Have you checked the fuses? Also do you have a multi meter to do some testing?
Jan 3, 2013 at 8:45 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,399 POSTS
That's what you pay mechanics to diagnose. The most likely cause is a defective head light switch, especially if the tail lights also don't work. The next suspect would be the dimmer switch. Check both connectors for blackened terminals or signs of melted plastic.
Jan 3, 2013 at 8:45 PM
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