Subaru Legacy 2004 Service Manual page 3180

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK DRIVING PLACE.
Check if the vehicle ran the road with banks or
sandy surface (which does not mean a dirt
road).
2 CHECK YAW RATE & LATERAL G SENSOR
INSTALLATION.
3 CHECK OUTPUT OF YAW RATE & LATER-
AL G SENSOR WITH SUBARU SELECT
MONITOR.
1) Drive the vehicle on a flat road.
2) Park the vehicle straight.
3) Select {Current Data Display & Save} in
Subaru Select Monitor.
4) Read the yaw rate output displayed on dis-
play.
4 CHECK OUTPUT OF STEERING ANGLE
SENSOR WITH SUBARU SELECT MONI-
TOR.
1) Drive the vehicle on a flat road.
2) Park the vehicle straight.
3) Select {Current Data Display & Save} in
Subaru Select Monitor.
4) Read the steering angle sensor output dis-
played on display.
5 CHECK YAW RATE & LATERAL G SENSOR.
1) Turn the ignition switch to OFF.
2) Connect all the connectors.
3) Erase the memory.
4) Perform the inspection mode.
5) Read the DTC.
6 CHECK VDCCM&H/U.
1) Turn the ignition switch to OFF.
2) Replace the yaw rate & lateral G sensor.
3) Erase the memory.
4) Perform the inspection mode.
5) Read the DTC.
7 CHECK OTHER DTC DETECTION.
8 CHECK OTHER DTC DETECTION.
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Check
Did the vehicle run the road
with banks or sandy surface
(which does not mean a dirt
road)?
Is the yaw rate & lateral G sen-
sor installation bolt tightened to
7.5 N'm (0.76 kgf-m, 5.5 ft-lb)?
Is the reading indicated on
monitor display #4 — 4 deg/s?
Is the reading indicated on
monitor display #5 — 5"?
Is the same DTC displayed?
Is the same DTC displayed?
Is any other DTC displayed?
Is any other DTC displayed?
VDC(diag)-107
Yes
VDCCM&H/U may Go to step 2.
record DTC when
the vehicle ran the
road with banks or
sandy surface
(which does not
mean a dirt road).
Go to step 3. Tighten the yaw
rate & lateral G
sensor installation
bolt.
Go to step 4. Replace the yaw
rate & lateral G
sensor.
Go to step 5. Perform the cen-
tering adjustment
of steering wheel.
Go to step 6. Go to step 7.
Replace the Go to step 8.
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule & Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
Perform the diag- Malfunction is
nosis according to found in original
DTC. yaw rate & lateral
G sensor.
No