Subaru LEGACY 2006 Manual page 4230

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Step
1 CHECK STEERING WHEEL.
1) Drive the vehicle on a flat road.
2) Park the vehicle straight.
3) Check the steering wheel for deviation from
center.
2 CHECK THE VDCCM&H/U.
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.
3 CHECK OTHER DTC DETECTION.
Check
Is the deviation from the center
of steering wheel less than 5°?
Is the same DTC displayed?
Is any other DTC displayed?
VDC(diag)-84
Yes No
Go to step 2. Perform the cen-
tering adjustment
of steering wheel.
Go to step 3.
Replace the
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC. <Ref. to
VDC(diag)-36, List
of Diagnostic Trou-
ble Code (DTC).>