Subaru Impreza 2002 Service Manual page 2822

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
Step
5 CHECK BATTERY SHORT OF HARNESS.
Measure the voltage between ABSCM&H/U
connector and chassis ground.
Connector & terminal
DTC 21 /
LHD: (B301) No. 11 (+) — Chassis
ground ( − − − − ):
RHD: (F49) No. 11 (+) — Chassis ground
( − − − − ):
DTC 23 /
LHD: (B301) No. 9 (+) — Chassis ground
( − − − − ):
RHD: (F49) No. 9 (+) — Chassis ground
( − − − − ):
DTC 25 /
LHD: (B301) No. 14 (+) — Chassis
ground ( − − − − ):
RHD: (F49) No. 14 (+) — Chassis ground
( − − − − ):
DTC 27 /
LHD: (B301) No. 7 (+) — Chassis ground
( − − − − ):
RHD: (F49) No. 7 (+) — Chassis ground
( − − − − ):
6 CHECK BATTERY SHORT OF HARNESS.
1)Turn the ignition switch to ON.
2)Measure the voltage between ABSCM&H/U
connector and chassis ground.
Connector & terminal
DTC 21 /
LHD: (B301) No. 11 (+) — Chassis
ground ( − − − − ):
RHD: (F49) No. 11 (+) — Chassis ground
( − − − − ):
DTC 23 /
LHD: (B301) No. 9 (+) — Chassis ground
( − − − − ):
RHD: (F49) No. 9 (+) — Chassis ground
( − − − − ):
DTC 25 /
LHD: (B301) No. 14 (+) — Chassis
ground ( − − − − ):
RHD: (F49) No. 14 (+) — Chassis ground
( − − − − ):
DTC 27 /
LHD: (B301) No. 7 (+) — Chassis ground
( − − − − ):
RHD: (F49) No. 7 (+) — Chassis ground
( − − − − ):
7 CHECK INSTALLATION OF ABS SENSOR.
Turn the ignition switch to OFF.
Tightening torque:
32 N·m (3.3 kgf-m, 24 ft-lb)
Check
Is the voltage less than 1 V?
Is the voltage less than 1 V?
Are the ABS sensor installation
bolts tightened securely?
ABS-43
ABS (DIAGNOSTICS)
Yes
Go to step 6. Repair the har-
ness between
ABSCM&H/U and
ABS sensor.
Go to step 7. Repair the har-
ness between
ABSCM&H/U and
ABS sensor.
Go to step 8. Tighten the ABS
sensor installation
bolts securely.
No