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Filament Check 1. Attach probe circuit tester (in volt range) to middle portion of each filament. 6 volts = Normal filament 2. If a filament is burned out, circuit tester registers 0 or 12 volts. 3. To locate burned out point, move probe to left and right along filament to determine point where tester needle swings I When measuring voltage, wind a piece of tin foil around SEL263 SEL265 SEL266 YEL553D REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER EL-132 |