Subaru LEGACY 2006 Manual page 4204

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Step
1 CHECK THE VDCCM&H/U GROUND CIR-
CUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the
VDCCM&H/U.
3) Measure the resistance between
VDCCM&H/U and chassis ground.
Connector & terminal
(B310) No. 6 — Chassis ground:
2 CHECK POOR CONTACT OF CONNEC-
TORS.
3 CHECK CAUSE OF SIGNAL NOISE.
4 CHECK CAUSE OF SIGNAL NOISE.
5 CHECK THE VDCCM&H/U.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the Inspection Mode.
4) Read the DTC.
6 CHECK OTHER DTC DETECTION.
Check
Is the resistance less than 0.5
Ω?
Is there poor contact of the
connector between the bat-
tery, ignition switch and
VDCCM&H/U?
Is the car telephone or the
radio properly installed?
Is there a noise source (such
as an antenna) installed near
the sensor harness?
Is the same DTC displayed?
Is any other DTC displayed?
VDC(diag)-58
Yes No
Go to step 2. Repair the
VDCCM&H/U
ground harness.
Repair the con- Go to step 3.
nector.
Go to step 4. Install the car
phone or radio
properly.
Install the noise Go to step 5.
sources apart from
the sensor har-
ness.
Replace the Go to step 6.
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).>