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Home >> Infiniti >> 1993 >> J30 V6-181 3.0L >> Repair and Diagnosis >> Windows and Glass >> Heated Glass Element >> Testing and Inspection
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Heated Glass Element: Testing and Inspection

Rear Window Defogger: Filament Check:





1. Attach probe circuit tester (in volt range) to middle portion of each filament.

Rear Window Defogger: Filament Check:





^ When measuring voltage, wind a piece of tin foil around the top of the negative probe and press the foil against the wire with your finger as shown.

Rear Window Defogger: Filament Check:





2. If a filament is burned out, circuit tester registers 0 or 12 volts.


Rear Window Defogger: Filament Check:





3. To locate burned out point, move probe to left and right along filament to determine point where tester needle swings abruptly.


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