Subaru LEGACY 2002 Quick Reference Index page 559

3. Windshield Wiper Deicer
A: CONSTRUCTION
The wiper deicer system is activated when the wiper deicer switch is pressed with the ignition
switch turned ON. It heats the lower part of the windshield with a heater wire to melt the ice that
blocks the wiper blades.
The system turns off automatically in 15 minutes after the wiper deicer switch is turned ON.
B: CIRCUIT DIAGRAM
IG
switch
WINDSHIELD WIPER DEICER
Printed ceramic
Heating area of wiper deicer
Wiper
deicer
ralay
Wiper
deicer
switch
WW-5
Wiper and Washer Systems
Windshield
Wiper deicer
heater wire
Printed ceramic
Timer
Wiper
deicer
B6H0857C
B6H0858