Subaru LEGACY 2003 Service Manual page 262

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
7 CHECK OPEN CIRCUIT IN YAW RATE AND
LATERAL G SENSOR OUTPUT HARNESS
AND GROUND HARNESS.
1) Connect connector to yaw rate and lateral
G sensor.
2) Disconnect connector from VDCCM.
3) Measure resistance between VDCCM con-
nector terminals.
Connector & terminal
(F87) No. 70 — No. 64:
Is the measured value within the specified
range?
8 CHECK GROUND SHORT IN YAW RATE
AND LATERAL G SENSOR HARNESS.
1) Disconnect connector from yaw rate and
lateral G sensor.
2) Measure resistance between VDCCM con-
nector and chassis ground.
Connector & terminal
(F87) No. 63 — Chassis ground:
(F87) No. 70 — Chassis ground:
(F87) No. 64 — Chassis ground:
Does the measured value exceed the spec-
ified value?
9 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Turn ignition switch to OFF.
2) Remove yaw rate and lateral G sensor from
vehicle.
3) Connect connector to yaw rate and lateral
G sensor.
4) Connect connector to VDCCM.
5) Turn ignition switch to ON.
6) Measure voltage between yaw rate and lat-
eral G sensor connector terminals.
Connector & terminal
(R100) No. 5 (+) — No. 6 ( − − − − ):
Is the measured value within the specified
range when yaw rate and lateral G sensor
is horizontal?
10 CHECK YAW RATE AND LATERAL G SEN-
SOR.
Measure voltage between yaw rate and lateral
G sensor connector terminals.
Connector & terminal
(R100) No. 5 (+) — No. 6 ( − − − − ):
Is the measured value within the specified
range when yaw rate and lateral G sensor is
inclined 90× to left?
11 CHECK YAW RATE AND LATERAL G SEN-
SOR.
Measure voltage between yaw rate and lateral
G sensor connector terminals.
Connector & terminal
(R100) No. 5 (+) — No. 6 ( − − − − ):
Is the measured value within the specified
range when yaw rate and lateral G sensor is
inclined 90× to right?
Step Value
4.3 — 4.9 kΩ
1 MΩ
2.3 — 2.7 V
3.3 — 3.7 V
1.3 — 1.7 V
VDC-260
Yes
Go to step 8. Repair harness/
connector
between yaw rate
and lateral G sen-
sor and VDCCM.
Go to step 9. Repair harness
between yaw rate
and lateral G sen-
sor and VDCCM.
Go to step 10. Replace yaw rate
and lateral G sen-
sor. <Ref. to VDC-
22, Yaw Rate and
Lateral G Sensor.>
Go to step 11. Replace yaw rate
and lateral G sen-
sor. <Ref. to VDC-
22, Yaw Rate and
Lateral G Sensor.>
Go to step 12. Replace yaw rate
and lateral G sen-
sor. <Ref. to VDC-
22, Yaw Rate and
Lateral G Sensor.>
No