Subaru IMPREZA 2002 Service Manual page 231

m
DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
ABS (DIAGNOSTICS)
Is there poor contact in con-
nectors between ABSCM&H/U
and ABS sensor?
I s the same diagnostic trouble
:ode as in the current diagno-
sis still being output?
Are other diagnostic trouble
codes being output?
Step
11
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 / (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:
CHECK POOR CONTACT IN CONNECTORS.
12
Repair the con-
nector.
Replace the
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
13
CHECK ABSCM&H/U.
1 )Connect all connectors.
2)Erase the memory.
3)Perform the inspection mode.
4)Read out the diagnostic trouble code.
14
CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
Check
No
Repair harness
between
ABSCM&H/U and
ABS sensor.
Replace
ABSCM&H/U.
<Ref. to ABS-7,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 13.
Go to step 14.
A temporary poor
contact .
NOTE:
Check harnes:
and connector:
SCM&H/U anc
ABS sensor.
between AB,
ABS-45