Subaru 2009 IMPREZA, Service Manual

Page: 478 / 3619

EN(H4SO)(diag)-61
Malfunction Indicator Light
ENGINE (DIAGNOSTICS)
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 diagnostics of the malfunction indicator
light circuit or the combination meter circuit. <Ref.
to EN(H4SO)(diag)-62, MALFUNCTION INDICA-
TOR LIGHT DOES NOT COME ON, Malfunction
Indicator Light.>
2) After starting the engine, the malfunction indica-
tor light goes out. If it does not go off, either the en-
gine or emission control system has malfunction.
3) If the diagnostic system detects a misfire which
could damage the catalyst, the malfunction indica-
tor light will blink at a cycle of 1 Hz.
4) Turn the ignition switch to OFF and connect the
delivery (test) mode connector.
(1) When the ignition switch is turned to ON
(engine OFF), the malfunction indicator light il-
luminates.
(2) After the engine starts, malfunction indicator
light blinks in a cycle of 0.5 Hz. (During diagno-
sis)
(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) No faulty
(2) Trouble occurs
(3) ON
(4) OFF
(5) Ignition switch ON
(6) Engine start
EN-06235
(A)
CHECK
ENGINE
EN-01679
(1)
(2)
(5)
(6)
(3)
(4)
(3)
(4)
(1) ON
(2) OFF
(3) Ignition switch ON
(4) Engine start
(5) Misfire start
(6) 1 seconds
(1) ON
(2) OFF
(3) Ignition switch ON
(4) 1 seconds
EN-01680
(2)
(1)
(3)
(4)
(5)
(6)
EN-01681
(2)
(1)
(4)
(3)