Subaru LEGACY 2003 Service Manual page 122

DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
VDC (DIAGNOSTICS)
7 CHECK GROUND CIRCUIT OF YAW RATE
AND LATERAL G SENSOR.
Measure resistance between yaw rate and lat-
eral G sensor and chassis ground.
Connector & terminal
(R100) No. 6 — Chassis ground:
Is the measured value less than the specified
value?
8 CHECK GROUND CIRCUIT OF VDCCM.
1) Disconnect connector from VDCCM.
2) Remove cover from VDCCM connector.
<Ref. to VDC-19, REMOVE, VDCCM Con-
nector Cover.>
3) Connect connector to VDCCM.
4) Measure resistance between VDCCM con-
nector and chassis ground.
Connector & terminal
(F87) No. 64 — Chassis ground:
Is the measured value less than the speci-
fied value?
9 CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in VDCCM connector?
10 CHECK HARNESS OF YAW RATE AND LAT-
ERAL G SENSOR.
1) Disconnect connector from VDCCM.
2) Measure resistance between VDCCM and
yaw rate and lateral G sensor.
Connector & terminal
(F87) No. 65 — (R100) No. 4:
(F87) No. 66 — (R100) No. 1:
(F87) No. 67 — (R100) No. 2:
Is the measured value less than the speci-
fied value?
11 CHECK GROUND SHORT OF HARNESS.
Measure resistance between VDCCM connec-
tor and chassis ground.
Connector & terminal
(F87) No. 65 — Chassis ground:
(F87) No. 66 — Chassis ground:
(F87) No. 67 — Chassis ground:
Does the measured value exceed the specified
value?
12 CHECK BATTERY SHORT OF HARNESS.
Measure voltage between VDCCM connector
and chassis ground.
Connector & terminal
(F87) No. 65 (+) — Chassis ground ( − − − − ):
(F87) No. 66 (+) — Chassis ground ( − − − − ):
(F87) No. 67 (+) — Chassis ground ( − − − − ):
Is the measured value less than the specified
value?
Step Value
0.5 Ω
0.5 Ω
There is poor contact.
0.5 Ω
1 MΩ
0.5 V
VDC-120
Yes
Go to step 10. Go to step 8.
Repair harness Go to step 9.
between yaw rate
and lateral G sen-
sor and VDCCM.
Repair or replace Replace VDCCM.
VDCCM connec- <Ref. to VDC-8,
tor. VDC Control Mod-
ule (VDCCM).>
Go to step 11. Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Go to step 12. Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Go to step 13. Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
No