Subaru Legacy 2002 Service Manual page 2707

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (Diagnostics)
No.
9 CHECK HARNESS OF YAW RATE AND
LATERAL 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:
10 CHECK GROUND SHORT OF HARNESS.
Measure resistance between VDCCM and
chassis ground.
Connector & terminal
(F87) No. 65 — Chassis ground:
(F87) No. 66 — Chassis ground:
(F87) No. 67 — Chassis ground:
11 CHECK BATTERY SHORT OF HARNESS.
Measure voltage between VDCCM and chas-
sis ground.
Connector & terminal
(F87) No. 65 (+) — Chassis ground (−):
(F87) No. 66 (+) — Chassis ground (−):
(F87) No. 67 (+) — Chassis ground (−):
12 CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between VDCCM and
chassis ground.
Connector & terminal
(F87) No. 65 — Chassis ground:
(F87) No. 66 — Chassis ground:
(F87) No. 67 — Chassis ground:
13 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Turn ignition switch to OFF.
2) Install yaw rate and lateral G sensor to
body.
3) Connect all connectors.
4) Turn ignition switch to ON.
5) Measure voltage between yaw rate and
lateral G sensor connector terminals.
Connector & terminal
(F87) No. 66 (+) — No. 64 (−):
Step
Is the resistance less than
0.5 Ω?
Is the resistance more than
1 MΩ?
Is the voltage less than 0.5
V?
Is the voltage less than 0.5
V?
Is the voltage between 2.1
and 2.9 V?
VDC-248
Check Yes
Go to step 10.
Go to step 11.
Go to step 12.
Go to step 13.
Replace VDCCM.
<Ref. to VDC-9,
VDC Control Mod-
ule (VDCCM).>
No
Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Replace yaw rate
and lateral G sen-
sor. <Ref. to VDC-
22, Yaw Rate and
Lateral G Sen-
sor.>