Subaru LEGACY 2003 Service Manual page 31

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
Step
1 CHECK IF OTHER WARNING LIGHTS TURN
ON.
Turn ignition switch to ON (engine OFF).
Do other warning lights turn on?
2 CHECK ABS WARNING LIGHT BULB.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove ABS warning light bulb from com-
bination meter.
Is ABS warning light bulb OK?
3 CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Disconnect connector (B62) or (B100) from
connector (F45) or (F2).
2) Measure voltage between connector (B62)
and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
( − − − − ):
RHD: (B100) No. 18 (+) — Chassis
ground ( − − − − ):
Is the measured value less than the speci-
fied value?
4 CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between connector (B62)
or (B100) and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
( − − − − ):
LHD: (B100) No. 18 (+) — Chassis
ground ( − − − − ):
Is the measured value less than the speci-
fied value?
5 CHECK WIRING HARNESS.
1) Turn ignition switch to OFF.
2) Install ABS warning light bulb from combi-
nation meter.
3) Install combination meter.
4) Turn ignition switch to ON.
5) Measure voltage between connector (B62)
or (B100) and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
( − − − − ):
RHD: (B100) No. 18 (+) — Chassis
ground ( − − − − ):
Is the measured value within the specified
range?
Value
Other warning light turns on.
OK.
3 V
3 V
10 - 15 V
ABS-29
ABS (DIAGNOSTICS)
Yes
Go to step 2. Repair combina-
tion meter. -<Ref.
to IDI-14, Combi-
nation Meter
Assembly.>
Go to step 3. Replace ABS
warning light bulb.
<Ref. to IDI-14,
Combination
Meter Assembly.>
Go to step 4. Repair warning
light harness.
Go to step 5. Repair warning
light harness.
Go to step 6. Repair wiring har-
ness.
No