Subaru Legacy 2003 Service Manual page 2306

DIAGNOSTIC PROCEDURE FOR POWER INDICATOR LIGHT
Step
1 CHECK POWER INDICATOR LIGHT.
Turn ignition switch to ON (engine OFF).
Does POWER indicator light illuminate?
2 CHECK POWER INDICATOR LIGHT.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove POWER indicator light bulb from
combination meter.
Is POWER indicator light bulb OK?
3 CHECK POWER INDICATOR LIGHT.
Perform "Read Diagnostic Trouble Code
(DTC)". <Ref. to AT-24, WITHOUT SUBARU
SELECT MONITOR, OPERATION, Read
Diagnostic Trouble Code (DTC).>
Does POWER indicator light blink?
4 CHECK FUSE (No. 5).
Remove fuse (No. 5).
Is the fuse (No. 5) blown out?
5 CHECK HARNESS CONNECTOR BETWEEN
COMBINATION METER AND IGNITION RE-
LAY.
1) Turn ignition switch to ON (engine OFF).
2) Measure voltage between combination
meter connector and chassis ground.
Connector & terminal
Except 3.0 L model
(i12) No. 3 (+) — Chassis ground ( − − − − ):
3.0 L model
(i11) No. 5 (+) — Chassis ground ( − − − − ):
(i10) No. 8 (+) — Chassis ground ( − − − − ):
Does the measured value exceed the spec-
ified value?
6 CHECK COMBINATION METER.
Measure voltage between combination meter
connector and chassis ground.
Connector & terminal
Except 3.0 L model and TURBO model
(i11) No. 6 (+) — Chassis ground ( − − − − ):
LHD: 3.0 L model
(i11) No. 12 (+) — Chassis ground ( − − − − ):
RHD: 3.0 L model and TURBO model
(i10) No. 13 (+) — Chassis ground ( − − − − ):
Is the measured value less than the specified
value?
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Value
POWER indicator illuminates.
Bulb is normal.
Power indicator light illumi-
nates.
Fuse is blown.
9 V
1 V
AT-31
Yes
Go to step 3. Go to step 2.
Go to step 4. Replace POWER
indicator light bulb.
A temporary poor Go to step 9.
contact of the con-
nector or harness
may be the cause.
Repair harness or
connector in TCM,
inhibitor switch
and combination
meter.
Replace fuse (No. Go to step 5.
5). If replaced fuse
(No. 5) is blown
out easily, repair
short circuit in har-
ness between fuse
(No. 5) and combi-
nation meter.
Go to step 6. Repair open or
short circuit in har-
ness between
combination meter
and battery.
Repair combina- Go to step 7.
tion meter. <Ref.
to IDI-14, Combi-
nation Meter
Assembly.>
No