my '05 CR-V has malfunction in rear window defogger
on/off Switch lights up when pressed. Solenoid recently replaced, fuse good. Heated side
mirrors get very warm, > 90 DegF. Have 12V power and ~0.7A at rear defogger leads.
Terminals on glass at both ends are good. Darn thing won't heat up at all, having trouble
seeing through rear window when snowing.