Rear Window Defogger Inoperative

Rear Window Defogger Inoperative

Diagnostic Aids

The defogger indicator has its own feed circuit. If this circuit is open the defogger indicator will be inoperative but the defogger will operate.

The defogger relay control circuit and the defogger indicator circuit share the same ground circuit. An open in this circuit will cause the defogger and the defogger indicator to be inoperative.