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Home >> Chevrolet >> 1997 >> Cavalier RS, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Heated Glass/Defoggers >> Rear Window Defogger >> Testing >> Defogger System Tests >> System Check

System Check

  1. Turn ignition switch to RUN position. Turn rear defogger on (press and release rear defogger switch once). Switch should return to resting position. System should come on. System is on if rear window becomes warm and indicator light comes on. If some grid lines do not become warm, go to GRID FILAMENT TEST  .
  2. After about 10 minutes, system should automatically turn off. Turn rear defogger on again. After about 5 minutes, system should automatically turn off. Turn defogger on again, then immediately press defogger switch. System should come on and remain on until switch is pressed again.
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