headlights work on bright but not on dim

1988 ISUZU TROOPER
152,000 MILES
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MILO57
  • MEMBER
  • 2 POSTS
changed bulbs, turn on dimmer switch to bright they work turn on dim no headlights
Feb 11, 2012 at 8:37 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the lower headlight relay
Feb 11, 2012 at 8:43 AM
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MILO57
  • MEMBER
  • 2 POSTS
where is the relay? is it on the dimmer switch?
Feb 11, 2012 at 9:02 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
On right rear corner of engine compartment
Feb 11, 2012 at 9:07 AM
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