Subaru Legacy 2002 Service Manual page 2416

DIAGNOSTICS CHART WITH SUBARU SELECT MONITOR
No.
1 CHECK GROUND CIRCUIT OF
ABSCM&H/U.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM&H/U.
3) Measure resistance between ABSCM&H/U
and chassis ground.
Connector & terminal
(F49) No. 23 — Chassis ground:
2 CHECK POOR CONTACT IN CONNEC-
TORS.
3 CHECK SOURCES OF SIGNAL NOISE.
4 CHECK SOURCES OF SIGNAL NOISE.
5 CHECK ABSCM&H/U.
1) Turn ignition switch to OFF.
2) Connect all connectors.
3) Erase the memory.
4) Perform inspection mode.
5) Read out the DTC.
6 CHECK ANY OTHER DTC APPEARANCE.
Step
Is the resistance less than
0.5 Ω?
Is there poor contact in
connectors between
battery, ignition switch and
ABSCM&H/U?
Is the car telephone or the
wireless transmitter prop-
erly installed?
Are noise sources (such as
an antenna) installed near
the sensor harness?
Is the same DTC as in the
current diagnosis still being
output?
Are other DTC being out-
put?
ABS-115
Check Yes
Go to step 2.
Repair connector.
Go to step 4.
Install the noise
sources apart
from the sensor
harness.
Replace
ABSCM&H/U.
<Ref. to ABS-6,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Proceed with the
diagnosis corre-
sponding to the
DTC.
ABS (Diagnostics)
No
Repair
ABSCM&H/U
ground harness.
Go to step 3.
Properly install
the car telephone
or the wireless
transmitter.
Go to step 5.
Go to step 6.
A temporary poor
contact.