Subaru Legacy 2003 Service Manual page 3125

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
4 CHECK BATTERY SHORT OF SOLENOID
VALVE.
1) Turn ignition switch to ON.
2) Measure voltage between VDCH/U con-
nector and chassis ground.
Connector & terminal
DTC 31/(VDC5) No. 5 (+) — Chassis
ground ( − − − − ):
DTC 33/(VDC5) No. 8 (+) — Chassis
ground ( − − − − ):
DTC 35/(VDC5) No. 7 (+) — Chassis
ground ( − − − − ):
DTC 37/(VDC5) No. 6 (+) — Chassis
ground ( − − − − ):
DTC 61/(VDC5) No. 9 (+) — Chassis
ground ( − − − − ):
DTC 62/(VDC5) No. 12 (+) — Chassis
ground ( − − − − ):
Is the measured value less than the speci-
fied value?
5 CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to OFF.
2) Measure voltage between VDCCM connec-
tor 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 ( − − − − ):
Is the measured value less than the speci-
fied value?
6 CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between VDCCM connec-
tor 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 ( − − − − ):
Is the measured value less than the speci-
fied value?
Step Value
1 V
1 V
1 V
VDC-152
Yes
Go to step 5. Replace VDCH/U.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
Go to step 6. Repair harness
between VDCCM
and VDCH/U.
Go to step 7. Repair harness
between VDCCM
and VDCH/U.
No