Subaru Legacy 2002 Service Manual page 2342

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
No.
5 CHECK BATTERY SHORT OF HARNESS.
Measure voltage between ABSCM&H/U con-
nector and chassis ground.
Connector & terminal
DTC 21 / (F49) No. 11 (+) — Chassis
ground (−):
DTC 23 / (F49) No. 9 (+) — Chassis
ground (−):
DTC 25 / (F49) No. 14 (+) — Chassis
ground (−):
DTC 27 / (F49) No. 7 (+) — Chassis
ground (−):
6 CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between ABSCM&H/U
connector and chassis ground.
Connector & terminal
DTC 21 / (F49) No. 11 (+) — Chassis
ground (−):
DTC 23 / (F49) No. 9 (+) — Chassis
ground (−):
DTC 25 / (F49) No. 14 (+) — Chassis
ground (−):
DTC 27 / (F49) No. 7 (+) — Chassis
ground (−):
7 CHECK INSTALLATION OF ABS SENSOR.
Turn ignition switch to OFF.
Tightening torque:
32 N·m (3.3 kgf-m, 24 ft-lb)
8 CHECK ABS SENSOR GAP.
Measure 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
0.44 — 0.94 mm (0.0173 — 0.0370 in)
9 CHECK TONE WHEEL RUNOUT.
Measure tone wheel runout.
Step
Is the voltage less than 1
V?
Is the voltage less than 1
V?
Are the ABS sensor instal-
lation bolts tightened
securely?
Is the gap within the speci-
fications?
Is the runout less than 0.05
mm (0.0020 in)?
ABS-41
Check Yes
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Go to step 10.
ABS (Diagnostics)
No
Repair harness
between
ABSCM&H/U and
ABS sensor.
Repair harness
between
ABSCM&H/U and
ABS sensor.
Tighten ABS sen-
sor installation
bolts securely.
Adjust the gap.
NOTE:
Adjust the gap
using spacers
(Part No.
26755AA000). If
spacers cannot
correct the gap,
replace worn sen-
sor or worn tone
wheel.
Replace tone
wheel. Front:
<Ref. to ABS-20,
Front Tone
Wheel.> Rear:
<Ref. to ABS-21,
Rear Tone
Wheel.>