Subaru B9 TRIBECA WX 2007 Manual page 433

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GLASS/WINDOWS/MIRRORS
17.Rear Window Defogger
A: INSPECTION
1. CHECK WITH SUBARU SELECT MONITOR
CAUTION:
Check that the rear window defogger timer is in initial setting or customize setting before performing
inspection.
Step
1 CHECK INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
Check the input signal when the rear window
defogger switch is operated using Subaru
Select Monitor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from the «main menu».
4) Select the {Current Data Display & Save}.
5) Check the input signal when the rear win-
dow defogger switch is set to ON.
2. HEAT WIRE INSPECTION
CAUTION:
Use a dry and soft cloth when wiping dirt off the
glass. Move the cloth along the heat wire to
avoid damaging it.
1) Turn the ignition switch to ON.
2) Turn the defogger switch to ON.
3) Wrap the tips of tester probe with aluminum foil
to avoid damage to heat wire.
(1)
(1) Tester probe
(2) Aluminum foil
(3) Heat wire
(4) Press
Rear Window Defogger
After rear defogger switch is set
to ON, does it turn to OFF in 15
minutes? Or does it repeat 15
minutes operation and 2 min-
utes stop?
4) Measure the voltage at heat wire center with DC
voltmeter.
Standard voltage:
(4)
(3)
(2)
GW-00076
NOTE:
• If the measured value is 12 V, heat wire is open
between heat wire center and positive (+) terminal
of tester probe.
• If it is 0 V, the circuit is open between heat wire
center and ground.
5) Connect the tester probe of positive lead of volt-
meter to positive terminal of heat wire and move
tester probe of negative lead along the heat wire up
to the negative terminal end. If voltage changes
from zero to several volts during movement of
tester probe, heat wire is open at the voltage
change point.
GW-26
Check Yes
END.
Approx. 6 V
(1) Center of heat wire
Voltage
Approx. 6 V
Approx. 12 V or 0 V
No
Replace the body
integrated unit.
<Ref. to SL-51,
REMOVAL, Body
Integrated Unit.>
(1)
GW-00077
Criteria
Normal
Open