Subaru LEGACY 2003 Service Manual page 103

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
Step
1 CHECK WHEELS FOR FREE TURNING.
Have wheels been turned freely for more than
one minute, such as when the vehicle is
jacked-up, under full-lock cornering or when
tire is not in contact with road surface.
2 CHECK TIRE SPECIFICATIONS.
Turn ignition switch to OFF.
Are the tire specifications correct?
3 CHECK WEAR OF TIRE.
Is the tire worn excessively?
4 CHECK TIRE PRESSURE.
Is the tire pressure correct?
5 CHECK INSTALLATION OF ABS SENSOR.
Are the ABS sensor installation bolts tightened
with the specified torque?
6 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?
7 PREPARE OSCILLOSCOPE.
Is an oscilloscope available?
Value
Wheels have not turned freely. Go to step 2.
Correct specification.
Not worn excessively.
Correct tire pressure.
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)
Available.
ABS-101
ABS (DIAGNOSTICS)
Yes
The ABS is nor-
mal. Erase the
diagnostic trouble
code.
NOTE:
When the wheels
turn freely for a
long time, such as
when the vehicle is
towed or jacked-
up, or when steer-
ing wheel is contin-
uously turned all
the way, this trou-
ble code
sometimes occur.
Go to step 3. Replace tire.
Go to step 4. Replace tire.
Go to step 5. Adjust tire pres-
sure.
Go to step 6. Tighten ABS sen-
sor installation
bolts securely.
Go to step 7. Adjust the gap.
NOTE:
Adjust the gap us-
ing spacer (Part
No. 26755AA000).
If spacers cannot
correct the gap, re-
place worn sensor
or worn
wheel.
Go to step 8. Go to step 9.
No
may
tone