Subaru Legacy 2002 Service Manual page 2128

C: INSPECTION
1. LATERAL G SENSOR SIGNAL
No.
1 CHECK SUBARU SELECT MONITOR.
2 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Move the vehicle to a flat location.
2) Turn ignition switch to OFF.
3) Connect connector to yaw rate and lateral
G sensor.
4) Turn ignition switch to ON.
5) Measure voltage between yaw rate and
lateral G sensor connector terminals.
Connector & terminal
(R100) No. 5 (+) — No. 6 (−)
3 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Remove yaw rate and lateral G sensor
from vehicle.
2) Measure voltage between yaw rate and
lateral G sensor connector terminals.
Connector & terminal
(R100) No. 5 (+) — No. 6 (−)
NOTE:
If the yaw rate and lateral G sensor is moved,
the VDC (Yaw rate sensor) may be entered
into the memory.
4 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 (−)
NOTE:
If the yaw rate and lateral G sensor is moved,
the VDC (Yaw rate sensor) may be entered
into the memory.
5 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Turn ignition switch to OFF.
2) Connect select monitor connector to data
link connector.
3) Turn ignition switch to ON.
4) Turn select monitor into {BRAKE CON-
TROL} mode.
5) Set the display in the {Current Data Display
& Save} mode.
6) Read the yaw rate and lateral G sensor
output voltage.
NOTE:
If the yaw rate and lateral G sensor is moved,
the VDC (Yaw rate sensor) may be entered
into the memory.
YAW RATE AND LATERAL G SENSOR
S402634A10
S402634A1001
Step Check
Do you have SUBARU
select Monitor?
Is the voltage 2.5±0.2 V
when yaw rate and lateral
G sensor is horizontal?
Is the voltage 3.5±0.2 V
when yaw rate and lateral
G sensor is inclined right to
90°?
Is the voltage 1.5±0.2 V
when yaw rate and lateral
G sensor is inclined left to
90°?
Is the indicated reading
2.5±0.2 V when the vehicle
is in horizontal position?
VDC-23
Yes
Go to step 5. Go to step 2.
Go to step 3. Replace yaw rate
and lateral G sen-
sor.
Go to step 4. Replace yaw rate
and lateral G sen-
sor.
Yaw rate and lat- Replace yaw rate
eral G sensor is and lateral G sen-
normal. sor.
Go to step 6. Replace yaw rate
and lateral G sen-
sor.
VDC
No