VDC(diag)-99
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK LAN SYSTEM.
Perform the diagnosis for LAN system. <Ref. to
LAN(diag)-31, OPERATION, Read Diagnostic
Trouble Code (DTC).>
Is there any fault in LAN sys-
tem?
Perform the diag-
nosis according to
DTC for LAN sys-
tem.
Go to step
2
.
2
CHECK REVERSE SIGNAL USING SUBARU
SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the indication of reverse signal.
Is OFF displayed when the shift
lever is placed in any position
other than reverse, and is ON
displayed in reverse position?
Go to step
5
.
Go to step
3
.
3
CHECK BACK-UP LIGHT ILLUMINATION.
1) Turn the ignition switch to ON.
2) Place the shift lever in reverse position.
Does the back-up light illumi-
nate?
Go to step
4
.
Repair the back-up
light circuit.
4
CHECK HARNESS BETWEEN BODY INTE-
GRATED UNIT AND BACK-UP LIGHT
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from body inte-
grated unit and back-up light switch.
3) Measure the resistance of harness between
body integrated unit and back-up light switch
connector.
Connector & terminal
Non-turbo model
(B280) No. 18 — (B24) No. 1:
Turbo model
(B280) No. 18 — (T13) No. 2:
Is the resistance less than 0.5
:
? Replace the back-
up light switch.
<Ref. to 5MT-33,
Switches and Har-
ness.>
Repair the harness
between body inte-
grated unit and
back-up light
switch connector.
5
CHECK VDCCM&H/U.
1) Connect all connectors.
2) Clear the memory. <Ref. to VDC(diag)-24,
Clear Memory Mode.>
3) Perform the Inspection Mode. <Ref. to
VDC(diag)-23, Inspection Mode.>
4) Read the DTC.
Is the same DTC displayed?
Replace the
VDCCM only.
<Ref. to VDC-9,
REPLACEMENT,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).>
Go to step
6
.
6
CHECK OTHER DTC DETECTION.
Is any other DTC displayed?
Perform the diag-
nosis according to
DTC. <Ref. to
VDC(diag)-33, List
of Diagnostic Trou-
ble Code (DTC).>
Temporary poor
contact occurs.
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