Subaru LEGACY 2003 Service Manual page 119

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
Step
1 CHECK GENERATOR.
1) Start engine.
2) Idling after warm-up.
3) Measure voltage between generator B ter-
minal and chassis ground.
Terminal
Generator B terminal — Chassis
ground:
Is the measured value within the specified
range?
2 CHECK BATTERY TERMINAL.
Turn ignition switch to OFF.
Are the positive and negative battery terminals
tightly clamped?
3 CHECK INPUT VOLTAGE OF ABSCM&H/U.
1) Disconnect connector from ABSCM&H/U.
2) Run the engine at idle.
3) Measure voltage between ABSCM&H/U
connector and chassis ground.
Connector & terminal
(F49) No. 1 (+) — Chassis ground ( − − − − ):
Is the measured value within the specified
range?
4 CHECK GROUND CIRCUIT OF ABSCM&H/U.
1) Turn ignition switch to OFF.
2) Measure resistance between ABSCM&H/U
connector and chassis ground.
Connector & terminal
(F49) No. 23 — Chassis ground:
Is the measured value less than the speci-
fied value?
5 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in connectors between
generator, battery and ABSCM&H/U?
6 CHECK ABSCM&H/U.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the DTC.
Is the same DTC still being output?
7 CHECK ANY OTHER DTC APPEARANCE.
Are other DTC being output?
Value
10 - 17 V
Terminals are tightened
securely.
10 - 17 V
0.5 Ω
There is no poor contact.
Same DTC is not indicated.
Other DTC is not indicated.
ABS-117
ABS (DIAGNOSTICS)
Yes
Go to step 2. i) Repair genera-
tor.
ii) H4 engine
model:
iii) <Ref. to
SC(H4SO)-14,
Generator.>
iv) H6 engine
model:
v) <Ref. to
SC(H6DO)-14,
Generator.>
Go to step 3. Tighten the clamp
of terminal.
Go to step 4. Repair harness
connector
between battery,
ignition switch and
ABSCM&H/U.
Go to step 5. Repair
ABSCM&H/U
ground harness.
Go to step 6. Repair connector.
Go to step 7. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
A temporary poor Proceed with the
contact. diagnosis corre-
sponding to the
DTC.
No