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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1450 (Glass, Window System & Mirrors) >> Rear Window Defogger >> Filament Check
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Filament Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. 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: Wrapping Tin Foil Around Top Of Negative Probe
    G02404754Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Attach probe circuit tester (in Volt range) to middle portion of each filament.
    Fig 2: Attaching Probe Circuit Tester To Middle Portion Of Filament
    G02404755Courtesy of NISSAN MOTOR CO., U.S.A.
  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: Measuring Burned Out Point
    G02404756Courtesy of NISSAN MOTOR CO., U.S.A.