Subaru LEGACY 2003 Service Manual page 161

DIAGNOSTICS CHART WITH SELECT MONITOR
Step
7 CHECK GROUND SHORT OF HARNESS.
1) Turn ignition switch to OFF.
2) Measure resistance between VDCCM con-
nector and chassis ground.
Connector & terminal
DTC 32/(F87) No. 3 — Chassis ground:
DTC 34/(F87) No. 51 — Chassis ground:
DTC 36/(F87) No. 50 — Chassis ground:
DTC 38/(F87) No. 4 — Chassis ground:
DTC 63/(F87) No. 29 — Chassis ground:
DTC 64/(F87) No. 2 — Chassis ground:
Does the measured value exceed the spec-
ified value?
8 CHECK HARNESS/CONNECTOR BETWEEN
VDCCM AND VDCH/U.
1) Connect connector (F91) to VDCH/U.
2) Measure resistance between VDCCM con-
nector and VDCH/U connector.
Connector & terminal
DTC 32/(F87) No. 3 — (VDC2) No. 1:
DTC 34/(F87) No. 51 — (VDC2) No. 1:
DTC 36/(F87) No. 50 — (VDC2) No. 1:
DTC 38/(F87) No. 4 — (VDC2) No. 1:
DTC 63/(F87) No. 29 — (VDC2) No. 1:
DTC 64/(F87) No. 2 — (VDC2) No. 1:
Is the measured value within the specified
range?
9 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in connectors between
VDCCM and VDCH/U?
10 CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
Is the same diagnostic trouble code as in
the current diagnosis still being output?
11 CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
Are other diagnostic trouble codes being out-
put?
Value
1 MΩ
3 — 6 Ω
Tightened securely.
There is poor contact.
Same DTC indicated.
VDC-159
VDC (DIAGNOSTICS)
Yes
Go to step 8. Repair harness
between VDCCM
and VDCH/U.
Go to step 9. Repair harness/
connector
between VDCCM
and VDCH/U.
Repair connector. Go to step 10.
Replace VDCCM. Go to step 11.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
Proceed with the A temporary poor
diagnosis corre- contact.
sponding to the
diagnostic trouble
code.
No