Subaru Legacy 2004 Service Manual page 3165

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Step
1 CHECK STOP LIGHT SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the stop light switch connector.
3) Measure the resistance of stop light switch
terminals.
2 INTERVIEWING CUSTOMERS.
Make sure that the operation was performed in
which accelerator pedal and brake pedal were
depressed simultaneously (with depressing
brake pedal with left foot).
3 CHECK 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.
Check
Is the resistance more than 1
M& when switch is OFF (when
pedal is not depressed)?
Were the acceleration pedal
and brake pedal depressed
simultaneously during driving?
Is the same DTC displayed?
Is any other DTC displayed?
VDC(diag)-92
Yes
Go to step 2. Replace the stop
light switch.
System is in good Go to step 3.
order. (DTC may
be recorded while
brake is applied
during driving.)
Replace the Go to step 4.
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule & Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC. <Ref. to
VDC(diag)-37, List
of Diagnostic Trou-
ble Code (DTC).>
No