Subaru Legacy 2005 Service Manual page 3836

GLASS/WINDOWS/MIRRORS
5) Connect the tester probe of voltmeter positive
lead to positive terminal of heat wire, and move the
tester probe of negative lead along the heat wire up
to the negative terminal end. If voltage changes
from zero to several volts while moving the tester
probe, heat wire is open at the point where voltage
changed.
B: REPAIR
1) Clean the broken point with alcohol or white gas-
oline.
2) Mask both side of the heat wire with thin film.
3) Apply conductive silver composition (DUPONT
No. 4817) to the broken point.
(2)
(1) Broken point
(2) Thin film
(3) Broken heat wire
(4) Conductive silver composition (DUPONT No.
4817)
4) After repair, check the heat wire.
Rear Window Defogger
(1)
(3)
(4)
GW-00078
GW-34