VDC-21
Yaw Rate and G Sensor
VEHICLE DYNAMICS CONTROL (VDC)
C: INSPECTION
1. YAW RATE & G SENSOR SIGNAL
Step
Check
Yes
No
1
CHECK YAW RATE & G SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor connec-
tor to the data link connector.
3) Turn the ignition switch to ON.
4) Set the Subaru Select Monitor connector to
the {Brake Control System} mode.
5) Select {Current Data Display & Save}.
6) Read the output of yaw rate & G sensor.
Are the indicated values when
the vehicle is placed horizon-
tally, Lateral G sensor: –1.5 —
1.5 m/s
2
, Yaw rate sensor: –4
— 4 deg/s?
Go to step
2.
Repair the harness
connector between
yaw rate & G sen-
sor and
VDCCM&H/U. Or
replace yaw rate &
G sensor.
2
CHECK G SENSOR.
1) Remove the console box.
2) Remove the yaw rate & G sensor from vehi-
cle without disconnecting the connector.
3) Read the display of Subaru Select Monitor.
NOTE:
When the yaw rate & G sensor is moved with its
power supply on, DTC of yaw rate & G sensor
may be recorded.
Is the value 6.8 — 12.8 m/s
2
when the yaw rate & G sensor
is inclined 90° to the forward?
Go to step
3.
Repair the harness
connector between
yaw rate & G sen-
sor and
VDCCM&H/U. Or
replace yaw rate &
G sensor.
3
CHECK G SENSOR.
Read the display of Subaru Select Monitor.
NOTE:
When the yaw rate & G sensor is moved with its
power supply on, DTC of yaw rate & G sensor
may be recorded.
Is the value –6.8 — –12.8 m/s
2
when the yaw rate & G sensor
is inclined 90° to the rearward?
Go to step
4.
Repair the harness
connector between
yaw rate & G sen-
sor and
VDCCM&H/U. Or
replace yaw rate &
G sensor.
4
CHECK G SENSOR.
Read the display of Subaru Select Monitor.
NOTE:
When the yaw rate & G sensor is moved with its
power supply on, DTC of yaw rate & G sensor
may be recorded.
Is the value 6.8 — 12.8 m/s
2
when the yaw rate & G sensor
is inclined 90° to the right?
Go to step
5.
Repair the harness
connector between
yaw rate & G sen-
sor and
VDCCM&H/U. Or
replace yaw rate &
G sensor.
5
CHECK G SENSOR.
Read the display of Subaru Select Monitor.
NOTE:
When the yaw rate & G sensor is moved with its
power supply on, DTC of yaw rate & G sensor
may be recorded.
Is the value –6.8 — –12.8 m/s
2
when the yaw rate & G sensor
is inclined 90° to the left?
Yaw rate & G sen-
sors are normal.
Repair the harness
connector between
yaw rate & G sen-
sor and
VDCCM&H/U. Or
replace yaw rate &
G sensor.