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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2249 (Defogger) >> Removal And Installation >> Rear Window Defogger >> Filament Check
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Filament Check

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. 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 Foil Against Wire
    G04877448Courtesy of NISSAN NORTH AMERICA, INC.
  2. Attach probe circuit tester (in Volt range) to middle portion of each filament.
    Fig 2: Connecting Probe Circuit Tester (In Volt Range) To Filament Middle Portion
    G04877449Courtesy of NISSAN NORTH AMERICA, INC.
  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: Identifying Burned Out Point
    G04877450Courtesy of NISSAN NORTH AMERICA, INC.