Subaru 2009 IMPREZA Service Manual page 2556

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
AV:DTC C0072 SENSOR TYPE ABNORMAL
DTC DETECTING CONDITION:
Different yaw rate sensor specification
TROUBLE SYMPTOM:
• VDC does not operate.
• Hill start assist does not operate.
Step
1 CHECK YAW RATE & G SENSOR IDENTIFI-
CATION MARK.
Check the identification mark on the sticker
applied on the top of the yaw rate & G sensor.
MT:
R
AT:
S
2 CHECK VDCCM&H/U IDENTIFICATION
SYMBOL.
Check the identification mark stamped on the
upper side of the H/U.
AT:
S1
MT:
S5 (WRX-SS)
S2 (except for WRX-SS)
AW:DTC C0073 LATERAL G SENSOR OFFSET IS TOO BIG
NOTE:
For the diagnostic procedure, refer to DTC C0073 "EXCESSIVE LATERAL G SENSOR SIGNAL". <Ref. to
VDC(diag)-95, DTC C0073 EXCESSIVE LATERAL G SENSOR SIGNAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
AX:DTC C0073 ABNORMAL LATERAL G SENSOR OUTPUT
NOTE:
For the diagnostic procedure, refer to DTC C0073 "EXCESSIVE LATERAL G SENSOR SIGNAL". <Ref. to
VDC(diag)-95, DTC C0073 EXCESSIVE LATERAL G SENSOR SIGNAL, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
Check
Is the identification symbol cor-
rect?
Is the identification symbol cor-
rect?
VDC(diag)-94
Yes No
Go to step 2. Replace the yaw
rate & G sensor
with a genuine
part. <Ref. to VDC-
16, Yaw Rate and
G Sensor.>
Replace the Replace the
VDCCM only. VDCCM&H/U.
<Ref. to VDC-9, <Ref. to VDC-7,
REPLACEMENT, VDC Control Mod-
VDC Control Mod- ule and Hydraulic
ule and Hydraulic Control Unit
Control Unit (VDCCM&H/U).>
(VDCCM&H/U).>