Subaru 2002 IMPREZA Service Manual page 2204

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
ABS (DIAGNOSTICS)
Step
18 CHECK GROUND SHORT OF HARNESS.
1)Turn the ignition switch to OFF.
2)Connect the connector to ABS sensor.
3)Measure the resistance between
ABSCM&H/U connector terminal 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:
19 CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in con-
20 CHECK ABSCM&H/U.
1)Connect all connectors.
2)Erase the memory.
3)Perform the inspection mode.
4)Read out the DTC.
21 CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES (DTCs) APPEARANCE.
Check
Is the resistance more than 1
MΩ?
nectors between ABSCM&H/U
and ABS sensor?
Is the same DTC as in current
diagnosis still being output?
Are other DTCs being output? Proceed with the
ABS-106
Yes
Go to step 19. Repair the har-
ness between
ABSCM&H/U and
ABS sensor.
And replace the
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Repair the con- Go to step 20.
nector.
Replace the Go to step 21.
ABSCM&H/U.
A temporary poor
diagnosis corre- contact.
sponding to DTC.
NOTE:
Check the harness
and
between
SCM&H/U
ABS sensor.
No
connectors
AB-
and