Subaru Legacy 2003 Service Manual page 2880

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
Step
1 CHECK OUTPUT OF ABS SENSOR USING
SELECT MONITOR.
1) Select "Current data display & Save" on the
select monitor.
2) Read the ABS sensor output corresponding
to the faulty system in the select monitor
data display mode.
Does the speed indicated on the display
change in response to the speedometer
reading during acceleration/deceleration
when the steering wheel is in the straight-
ahead position?
2 CHECK INSTALLATION OF ABS SENSOR.
Are the ABS sensor installation bolts tightened
with the specified torque?
3 CHECK ABS SENSOR GAP.
Measure tone wheel to ABS sensor piece gap
over entire perimeter of the wheel.
Is the measured value within the specified
range?
4 CHECK TONE WHEEL RUNOUT.
Measure tone wheel runout.
Is the measured value less than the specified
value?
5 CHECK POOR CONTACT IN CONNECTORS.
Turn ignition switch to OFF.
Is there poor contact in connectors between
ABSCM&H/U and ABS sensor?
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
Change as same.
33±10 N·m (3.4±1.0 kgf-m,
25±7 ft-lb)
Front wheel 0.3 — 0.8 mm
(0.012 — 0.031 in) and Rear
wheel 0.44 — 0.94 mm
(0.0173 — 0.0370 in)
0.05 mm (0.0020 in)
There is no poor contact.
Same DTC is not indicated.
Other DTC is not indicated.
ABS-89
ABS (DIAGNOSTICS)
Yes
Go to step 2. Go to step 8.
Go to step 3. Tighten ABS sen-
sor installation
bolts securely.
Go to step 4. Adjust the gap.
NOTE:
Adjust the gap us-
ing spacers (Part
No. 26755AA000).
If spacers cannot
correct the gap, re-
place worn sensor
or worn
wheel.
Go to step 5. Replace tone
wheel. Front:
<Ref. to ABS-19,
Front Tone
Wheel.> Rear:
<Ref. to ABS-20,
Rear Tone
Wheel.>
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
NOTE:
DTC.
Check harness
and connectors
between AB-
SCM&H/U and
ABS sensor.
No
tone