Subaru Impreza 2002 Service Manual page 3585

SUBARU SELECT MONITOR
IMMOBILIZER (DIAGNOSTICS)
4) Start the interface check.
5) Does "Communication Line not Shorted" appear
on screen?
If "YES". Go to step 6).
If "NO". Go to step 7).
S6M0211
6) After diagnostic results, it is determined that the
short circuit is not a diagnostic item. This completes
interface check.
7) If a problem is detected, repair. <Ref. to IM-18,
DTC P1572 IMM CIRCUIT FAILURE (EXCEPT
ANTENNA CIRCUIT), Diagnostics Chart with Diag-
nostic Trouble Code (DTC).>
IM-8