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Home >> Buick >> 1997 >> Park Avenue Ultra >> Repair and Diagnosis >> Accessories & Equipment >> Headlights - Automatic Twilight Sentinel >> Trouble Shooting

Trouble Shooting

  1. Check SBM/LCM fuse No. 2 (10-amp), HDLP fuse No. 40 (30-amp), LP PK fuse No. 24 (25-amp), HDHIBML fuse No. 16 (10-amp), HDHIBMR fuse No. 14 (10-amp), HDLOBML fuse No. 19 (10-amp) and HDLOBMR fuse No. 18 (10-amp) in underhood bussed electricalcenter.
  2. If one headlight does not work, check bulb, connections and related wiring. See appropriate wiring diagram in HEADLIGHT SYSTEMS article. Ensure all ground connections are clean and tight.
  3. Check for poor connections or partially broken wire inside of insulation which could cause an intermittent. Check for proper installation of aftermarket electronic equipment.
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