Subaru Legacy 2003 Service Manual page 2920

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
Step
1 CHECK MOTOR RELAY IN ABSCM&H/U.
Measure resistance between ABSCM&H/U ter-
minals.
Terminals
No. 25 — No. 26:
Does the measured value exceed the specified
value?
2 CHECK MOTOR OPERATION.
Operate the sequence control. <Ref. to ABS-
9, ABS Sequence Control.>
NOTE:
Use the diagnosis connector to operate the se-
quence control.
Can motor revolution noise (buzz) be heard
when carrying out the sequence control?
3 CHECK POOR CONTACT IN CONNECTORS.
Turn ignition switch to OFF.
Is there poor contact in connector between
generator, battery and ABSCM&H/U?
4 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?
5 CHECK ANY OTHER DTC APPEARANCE.
Are other DTC being output?
Value
1 MΩ
There is no poor contact.
Operating sound is produced.
Same DTC is not indicated.
Other DTC is not indicated.
ABS-129
ABS (DIAGNOSTICS)
Yes
Go to step 2. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 3. Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 4. Repair connector.
Go to step 5. 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