Subaru XT 1988 Service Manual page 1395

WIRING DIAGRAM AND TROUBLESHOOTING
6-3
(1) Meter pilot lamp does not come on.
Turn ignition switch to "ON".
~
Yes
Check if fuse is burned out.
I Replace.
t
No
No
I
Repair or replace.
I
Check if 0 volts are produced
Faulty switch or poor con-
at GR lead wire then
nection or discontinuity be-
defogger switch is ON and 12
tween switch and ground.
volts are
produced
when
switch is OFF.
1
Yes
Yes
I
Replace.
I
Check if pilot lamp is burned
out.
INO
Discontinuity or poor con-
J R ·
I
I epalr.
nection between meter and
switch.
(2) Deffoger does not operate.
Turn ignition switch to "ON".
No
I
Connect securely.
I
Check if connector is proper-
ly connected to printed heat-
ing wire receptacle.
Yes
No
Check if 12 volts are present Discontinuity or poor con- Repair.
at printed wire harness con-
nection between relay and
nector when switch is ON. printed wiring harness.
Yes
Discontinuity or poor con-
nection between printed
I
Repair.
wiring harness and ground.
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