Subaru LEGACY 2006 Manual page 4260

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Step
1 CHECK POOR CONTACT IN CONNECTORS.
Check if there is poor contact in VDCCM&H/U
power supply circuit.
2 CHECK THE VDCCM&H/U POWER SUPPLY
CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the VDCCM&H/U connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between VDCCM&H/
U connector terminals.
Connector & terminal
(B310) No. 14 (+) — (B310) No. 6 (–):
3 CHECK THE VDCCM&H/U.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the Inspection Mode.
4) Read the DTC.
4 CHECK OTHER DTC DETECTION.
BK:DTC C0081 SYSTEM MALFUNCTION
DTC DETECTING CONDITION:
VDC long time sequential control
TROUBLE SYMPTOM:
• ABS does not operate.
• VDC does not operate.
Step
1 CHECK POOR CONTACT IN CONNECTOR. Is there poor contact in the
2 CHECK THE VDCCM&H/U.
1) Replace the yaw rate & lateral G sensor.
2) Connect all the connectors.
3) Erase the memory.
4) Perform the Inspection Mode.
5) Read the DTC.
Check
Is there poor contact?
Is the voltage 10 — 15 V?
Is the same DTC displayed?
Is any other DTC displayed?
Check
VDCCM& H/U and yaw rate &
lateral G sensor connector?
Is the same DTC displayed?
VDC(diag)-114
Yes No
Repair the con- Go to step 2.
nector.
Go to step 3.
Check the power
supply circuit in
VDCCM&H/U.
Go to step 4.
Replace the
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag- It results from a
nosis according to temporary noise
DTC. interference.
Yes No
Repair the con- Go to step 2.
nector.
Replace the Malfunction is
VDCCM&H/U. found in original
yaw rate & lateral
G sensor.