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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2185 (Defogger) >> Removal And Installation >> Rear Window Defogger >> Filament Check
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Filament Check

WARNING: This page is about a different car, the 2011 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. When measuring voltage, wrap tin foil around the top of the negative probe. Then press the foil against the wire with your finger.
    Fig 1: Pressing Tin Foil Against Wire
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  2. Attach probe circuit tester (in Volt range) to middle portion of each filament.
    Fig 2: Attaching Probe Circuit Tester To Middle Portion Of Each Filament
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  3. If a filament is burned out, circuit tester registers 0 or battery voltage.
  4. To locate burned out point, move probe to left and right along filament. Test needle will swing abruptly when probe passes the point.
    Fig 3: Attach Probe Circuit Tester To Burned Out Point
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