Subaru Legacy 2002 Service Manual page 2626

DIAGNOSTICS CHART WITH SELECT MONITOR
No.
1 CHECK GROUND CIRCUIT OF VDCCM.
1) Turn ignition switch to OFF.
2) Disconnect connector from VDCCM.
3) Measure resistance between VDCCM and
chassis ground.
Connector & terminal
(F87) No. 1 — Chassis ground:
(F87) No. 55 — Chassis ground:
2 CHECK POOR CONTACT IN CONNEC-
TORS.
3 CHECK SOURCES OF SIGNAL NOISE.
4 CHECK SOURCES OF SIGNAL NOISE.
5 CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
6 CHECK ANY OTHER DIAGNOSTIC
TROUBLE CODES APPEARANCE.
Step
Is the resistance less than
0.5 Ω?
Is there poor contact in
connectors between
battery, ignition switch and
VDCCM?
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 diagnostic
trouble code as in the cur-
rent diagnosis still being
output?
Are other diagnostic trouble
codes being output?
VDC-167
Check Yes
Go to step 2.
Repair connector.
Go to step 4.
Install the noise
sources apart
from the sensor
harness.
Replace VDCCM.
<Ref. to VDC-9,
VDC Control Mod-
ule (VDCCM).>
Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
VDC (Diagnostics)
No
Repair VDCCM
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.