Subaru Legacy 2002 Service Manual page 2612

DIAGNOSTICS CHART WITH SELECT MONITOR
No.
9 CHECK CONTAMINATION OF ABS SEN-
SOR OR TONE WHEEL.
Remove disc rotor from hub.
10 CHECK DAMAGE OF ABS SENSOR OR
TONE WHEEL.
11 CHECK TONE WHEEL RUNOUT.
Measure tone wheel runout.
12 CHECK VDCCM.
1) Turn ignition switch to OFF.
2) Connect all connectors.
3) Erase the memory.
4) Perform inspection mode.
5) Read out the diagnostic trouble code.
13 CHECK ANY OTHER DIAGNOSTIC
TROUBLE CODES APPEARANCE.
Step
Is the ABS sensor pole
piece or the tone wheel
contaminated by dirt or
other foreign matter?
Are there broken or dam-
aged teeth in the ABS sen-
sor pole piece or the tone
wheel?
Is the runout less than 0.05
mm (0.0020 in)?
Is the same diagnostic
trouble code as in the cur-
rent diagnosis still being
output?
Are other diagnostic trouble
codes being output?
VDC-153
Check Yes
Thoroughly
remove dirt or
other foreign mat-
ter.
Replace ABS sen-
sor or tone wheel.
Front <Ref. to
VDC-28, Front
ABS Sensor.> and
<Ref. to VDC-30,
Front Tone
Wheel.> Rear
<Ref. to VDC-29,
Rear ABS Sen-
sor.> and <Ref. to
VDC-31, Rear
Tone Wheel.>
Go to step 12.
Replace VDCCM.
<Ref. to VDC-9,
VDC Control Mod-
ule (VDCCM).>
Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
VDC (Diagnostics)
No
Go to step 10.
Go to step 11.
Repair tone
wheel. Front <Ref.
to VDC-30, Front
Tone Wheel.>
Rear <Ref. to
VDC-31, Rear
Tone Wheel.>
Go to step 13.
A temporary poor
contact.