Subaru LEGACY 2003 Service Manual page 200

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
5 ERASE MEMORY.
1) Connect all connectors.
2) Erase the memory.
Can the memory be erased?
6 CHECK DIAGNOSTIC TROUBLE CODE.
1) Perform inspection mode.
2) Read out the diagnostic trouble code.
Is the same diagnostic trouble code as in
the current diagnosis still being output?
Step Value
Can be erased.
Same DTC indicated.
VDC-198
Yes
Go to step 6. Replace VDCCM.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
Replace ECM. A temporary poor
<Ref. to contact.
FU(H6DO)-46,
Engine Control
Module.>
No