Subaru 2002 IMPREZA Service Manual page 2201

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
Step
2 CHECK INSTALLATION OF ABS SENSOR.
Tightening torque:
32 N·m (3.3 kgf-m, 24 ft-lb)
3 CHECK ABS SENSOR GAP.
Measure the tone wheel to ABS sensor piece
gap over entire perimeter of the wheel.
Front wheel
0.3 — 0.8 mm (0.012 — 0.031 in)
Rear wheel
0.7 — 1.2 mm (0.028 — 0.047 in)
4 CHECK TONE WHEEL RUNOUT.
Measure the tone wheel runout.
5 CHECK POOR CONTACT IN CONNECTORS.
Turn the ignition switch to OFF.
6 CHECK ABSCM&H/U.
1)Connect all connectors.
2)Erase the memory.
3)Perform the inspection mode.
4)Read out the DTC.
7 CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES (DTCs) APPEARANCE.
8 CHECK ABS SENSOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ABS sensor.
3)Measure the resistance of ABS sensor con-
nector terminals.
Terminal
Front RH No. 1 — No. 2:
Front LH No. 1 — No. 2:
Rear RH No. 1 — No. 2:
Rear LH No. 1 — No. 2:
Check
Are the ABS sensor installation
bolts tightened securely?
Is the gap within the specifica-
tions?
Is the runout less than 0.05
mm (0.0020 in)?
Is there poor contact in con-
nectors between ABSCM&H/U
and ABS sensor?
Is the same DTC as in the cur-
rent diagnosis still being out-
put?
Are other DTCs being output? Proceed with the
Is the resistance between 1
and 1.5 kΩ?
ABS-103
ABS (DIAGNOSTICS)
Yes
Go to step 3. Tighten the ABS
sensor installation
bolts securely.
Go to step 4. Adjust the gap.
NOTE:
Adjust the gap us-
ing spacers (Part
No. 26755AA000).
If the spacers can-
not correct gap, re-
place worn sensor
or worn
wheel.
Go to step 5. Replace the tone
wheel. Front:
<Ref. to ABS-20,
Front Tone
Wheel.> Rear:
<Ref. to ABS-21,
Rear Tone
Wheel.>
Repair the con- Go to step 6.
nector.
Replace the Go to step 7.
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
A temporary poor
diagnosis corre- contact.
sponding to DTC.
NOTE:
Check the harness
and
between
SCM&H/U
ABS sensor.
Go to step 9. Replace the ABS
sensor. Front:
<Ref. to ABS-14,
Front ABS Sen-
sor.> Rear: <Ref.
to ABS-17, Rear
ABS Sensor.>
No
tone
connectors
AB-
and