Subaru IMPREZA 2001 - Page 58

ABS-57
ABS (DIAGNOSTICS)
DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
9 CHECK CONTAMINATION OF ABS SENSOR
OR TONE WHEEL.
Remove disc rotor from hub.
Is the ABS sensor piece or the
tone wheel contaminated by
dirt or other foreign matter?
Thoroughly
remove dirt or
other foreign mat-
ter.
Go to step
10.
10 CHECK DAMAGE OF ABS SENSOR OR
TONE WHEEL.
Are there broken or damaged
teeth in the ABS sensor piece
or the tone wheel?
Replace ABS sen-
sor or tone wheel.
Front: <Ref. to
ABS-14, Front
ABS Sensor.>
Rear: <Ref. to
ABS-17, Rear
ABS Sensor.>
and Front: <Ref.
to ABS-20, Front
Tone Wheel.>
Rear: <Ref. to
ABS-21, Rear
Tone Wheel.>
Go to step
11.
11 CHECK TONE WHEEL RUNOUT.
Measure tone wheel runout.
Is the runout less than 0.05
mm (0.0020 in)?
Go to step
12.
Replace tone
wheel. Front:
<Ref. to ABS-20,
Front Tone
Wheel.> Rear:
<Ref. to ABS-21,
Rear Tone
Wheel.>
12 CHECK ABSCM&H/U.
1)Turn ignition switch to OFF.
2)Connect all connectors.
3)Erase the memory.
4)Perform inspection mode.
5)Read out the trouble code.
Is the same trouble code as in
the current diagnosis still being
output?
Replace
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step
13.
13 CHECK ANY OTHER TROUBLE CODES AP-
PEARANCE.
Are other trouble codes being
output?
Proceed with the
diagnosis corre-
sponding to the
trouble code.
A temporary poor
contact.
Step Check Yes No