Subaru Legacy 2004 Service Manual page 801

B: ACTIVATION OF MALFUNCTION
INDICATOR LIGHT
1) When the ignition switch is turned to ON (engine
OFF), the malfunction indicator light (A) in the com-
bination meter illuminates.
NOTE:
If the malfunction indicator light does not illuminate,
perform the diagnosis of malfunction indicator light
circuit or the combination meter circuit. <Ref. to
EN(H4SO 2.5)(diag)-46, MALFUNCTION INDICA-
TOR LIGHT DOES NOT COME ON, Malfunction
Indicator Light.>
(A)
2) After starting the engine, the malfunction indica-
tor light goes out. If it does not, either the engine or
emission control system is malfunctioning.
(1)
(3)
(4)
(2)
(3)
(4)
(5)
(1) No faulty
(2) Trouble occurs
(3) ON
(4) OFF
(5) Ignition switch ON
(6) Engine start
3) Turn the ignition switch to OFF and connect the
test mode connector.
(1) When the ignition switch is turned to ON
(engine OFF), the malfunction indicator light illu-
minates.
(2) Malfunction indicator light blinks at a cycle of
0.5 Hz after starting the engine. (During diagno-
sis)
Malfunction Indicator Light
EN-01984
(6)
EN-01679
EN(H4SO 2.5)(diag)-45
(3) Malfunction indicator light blinks at a cycle of
3 Hz after diagnosis if there is no trouble. Mal-
function indicator light illuminates if faulty.
(1)
(2)
(4)
(3)
(1) ON
(2) OFF
(3) Ignition switch ON
(4) 1 second
ENGINE (DIAGNOSTICS)
EN-01681