wiring diagram for taillights?

1999 BUICK LESABRE
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CLARKJJ
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Hello, have a 1999 buick lesabre with the taillights not working while in park or driving. Brake lights and turn signal lights work. Changed bulbs and fuses. Need a picture of taillight wiring diagram. Thanks,
Apr 11, 2015 at 3:30 AM
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HMAC300
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first check fuse in dash and relay then check brown wire in back if no power have it scanned as it may be a lighting module bad. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Apr 11, 2015 at 5:44 AM