Subaru LEGACY 2003 Service Manual page 69

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
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 31/(F87) No. 30 — Chassis ground:
DTC 33/(F87) No. 24 — Chassis ground:
DTC 35/(F87) No. 23 — Chassis ground:
DTC 37/(F87) No. 31 — Chassis ground:
DTC 61/(F87) No. 25 — Chassis ground:
DTC 62/(F87) No. 26 — 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 31/(F87) No. 30 — (VDC2) No. 2:
DTC 33/(F87) No. 24 — (VDC2) No. 2:
DTC 35/(F87) No. 23 — (VDC2) No. 2:
DTC 37/(F87) No. 31— (VDC2) No. 2:
DTC 61/(F87) No. 25 — (VDC2) No. 2:
DTC 62/(F87) No. 26 — (VDC2) No. 2:
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
7 — 10 Ω
There is poor contact.
Same DTC indicated.
Other DTC indicated.
VDC-67
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.
Repair 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