Operation CHARM: Car repair manuals for everyone.

Electrical Components Inspection

REAR WINDOW DEFOGGER RELAY





Check continuity between terminals (3) and (5), (6) and (7).

REAR WINDOW DEFOGGER SWITCH





Check continuity between terminals when rear window defogger switch is pushed and released.

FILAMENT CHECK





^ When measuring voltage, wrap tin foil around the top of the negative probe. Press the foil against the wire with your finger. This action will prevent damage to the element.





1. Attach probe circuit tester (in volt range) to middle portion of each 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. Tester needle will swing abruptly when probe passes the point.