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Home >> Ford >> 1976 >> Thunderbird >> Repair and Diagnosis >> Electrical >> Body Electrical >> Automatic Headlight Dimmer >> Testing >> Test Procedure

Test Procedure

  1. Turn light switch on. Headlights should remain on lower beam in both positions of foot switch (beam should not change when foot switch is operated). If not make test A.
  2. With foot dimmer switch in AUTOMATIC position, slight pressure on switch should override unit and switch headlight to upper beam. If not, make test B.
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