Engine Malfunction Indicator Lamp (Mi) - Subaru Legacy 2003 Service Manual

ENGINE MALFUNCTION INDICATOR LAMP (MI)

ENGINE (DIAGNOSTICS)
16.Engine Malfunction Indicator Lamp (MI)
A: PROCEDURE
1. Activation of check engine malfunction indicator lamp (MI). <Ref. to EN(H4SO)-50, ACTIVATION OF CHECK ENGINE MAL-
FUNCTION INDICATOR LAMP (MI), Engine Malfunction Indicator Lamp (MI).>
2. Check engine malfunction indicator lamp (MI) does not come on. <Ref. to EN(H4SO)-52, CHECK ENGINE MALFUNCTION
INDICATOR LAMP (MI) DOES NOT COME ON., Engine Malfunction Indicator Lamp (MI).>
3. Check engine malfunction indicator lamp (MI) does not go off. <Ref. to EN(H4SO)-56, CHECK ENGINE MALFUNCTION
INDICATOR LAMP (MI) DOES NOT GO OFF., Engine Malfunction Indicator Lamp (MI).>
4. Check engine malfunction indicator lamp (MI) does not blink at a cycle of 3 Hz. <Ref. to EN(H4SO)-58, CHECK ENGINE
MALFUNCTION INDICATOR LAMP (MI) DOES NOT BLINK AT A CYCLE OF 3 HZ., Engine Malfunction Indicator Lamp (MI).>
5. Check engine malfunction indicator lamp (MI) remains blinking at a cycle of 3 Hz. <Ref. to EN(H4SO)-60, CHECK ENGINE
MALFUNCTION INDICATOR LAMP (MI) REMAINS BLINKING AT A CYCLE OF 3 HZ., Engine Malfunction Indicator Lamp (MI).>
B: ACTIVATION OF CHECK ENGINE
MALFUNCTION INDICATOR
LAMP (MI)
1) When ignition switch is turned to ON (engine
off), the CHECK ENGINE malfunction indicator
lamp (MI) in the combination meter illuminates.
NOTE:
If the MI does not illuminate, perform diagnostics of
the CHECK ENGINE light circuit or the combination
meter circuit. <Ref. to EN(H4SO)-52, CHECK EN-
GINE MALFUNCTION INDICATOR LAMP (MI)
DOES NOT COME ON., Engine Malfunction Indi-
cator Lamp (MI).>
80
60
100 120 140 100
40
80
160
AIRBAG
60
180
ABS
120
40
200
20
20
220
F
km/h
140
MPH
1 / 2 0
TRIP 000
E
(A) Malfunction indicator lamp (MI)
( A )
4
3
CHECK
ENGINE
P 5
2
x1000r/min
AT OIL
R
TEMP
N
FWD
6
D
1
3 H
2
7
0
1
C
EN-00712
EN(H4SO)-50
↓
↓
↓
↓
2) After starting the engine, the MI goes out. If it
does not, either the engine or the emission control
system is malfunctioning.
a) No trouble
ON
MIL
OFF
b) Trouble occurs.
ON
MIL
OFF
3) If the diagnosis system senses a misfire which
could damage the catalyzer, the MI will blink at a
cycle of 1 Hz.
ON
MIL
OFF
Ignition
switch
ON
Ignition
switch
Engine
ON
start
EN-00196
Engine
start
1 sec.
Misfire
start
EN-00197