Subaru Legacy 2002 Service Manual page 2129

VDC
No.
6 CHECK YAW RATE AND LATERAL G SEN-
SOR.
1) Remove console box.
2) Remove yaw rate and lateral G sensor
from vehicle. (Do not disconnect connector.)
3) Read the select monitor display.
NOTE:
If the yaw rate and lateral G sensor is moved,
the VDC (Yaw rate sensor) may be entered
into the memory.
7 CHECK YAW RATE AND LATERAL G SEN-
SOR.
Read the select monitor display.
NOTE:
If the yaw rate and lateral G sensor is moved,
the VDC (Yaw rate sensor) may be entered
into the memory.
2. YAW RATE SENSOR SIGNAL
No.
1 CHECK YAW RATE AND LATERAL G SEN-
SOR USING OSCILLOSCOPE.
1) Connect all connectors.
2) Set oscilloscope to TCM connector termi-
nals.
Positive probe; (R100) No. 4
Earth lead; (R100) No. 6
3) Start the engine.
4) Measure signal voltage indicated on oscil-
loscope. <Ref. to VDC-15, WAVE FORM,
MEASUREMENT, Control Module I/O Signal.>
2 CHECK YAW USING OSCILLOSCOPE.
1) Turn ignition switch to OFF.
2) Set oscilloscope to TCM connector termi-
nals.
Positive probe; (R100) No. 2
Earth lead; (R100) No. 6
3) Start the engine.
4) Measure signal voltage indicated on oscil-
loscope. <Ref. to VDC-15, WAVE FORM,
MEASUREMENT, Control Module I/O Signal.>
YAW RATE AND LATERAL G SENSOR
Step
Is the indicated reading
3.5±0.2 V when yaw rate
and lateral G sensor is
inclined right to 90°?
Is the indicated reading
1.5±0.2 V when yaw rate
and lateral G sensor is
inclined left to 90°?
S402634A1002
Step
Is the voltage between 2.1
V and 2.9 V?
Is the voltage 5 V?
VDC-24
Check Yes
Go to step 7.
Yaw rate and lat-
eral G sensor is
normal.
Check Yes
Go to step 2.
Yaw rate and lat-
eral G sensor is
normal.
No
Replace yaw rate
and lateral G sen-
sor.
Replace yaw rate
and lateral G sen-
sor.
No
Replace yaw rate
and lateral G sen-
sor is normal.
Replace yaw rate
and lateral G sen-
sor.