ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
Step
CHECK
POOR
CONTACT.
CHECK ECM CONNECTOR.
CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Remove the combination meter. <Ref.
to
IDI-11, Combination Meter Assembly.>
3)Disconnect the connector from ECM and
combination meter.
4)Measure the resistance of harness between
ECM and combination meter connector.
Connector
&
terminal
(8137) No.
15
-
(i12)
No.
6:
CHECK POOR CONTACT.
Check poor contact
in
combination meter con-
nector.
CHECK HARNESS BETWEEN COMBINA-
TION METER AND IGNITION SWITCH CON-
NECTOR.
1)Turn the ignition switch
to
ON.
2)Measure the voltage between combination
meter connector and chassis ground.
Connector
&
terminal
(i10)
No.
7
(+)
-
Chassis ground
(-):
I
CHECK LAMP BULB.
Remove the engine malfunction indicator lamp
bulb.
Check
,oes the MIL come on when
haking or pulling ECM con-
ector and harness?
;the ECM connector correctly
onnected?
;
the resistance less than
1
2?
;
there poor contact in combi-
iation meter connector?
s
the voltage more than
10
V?
s
the lamp bulb condition
OK;
Yes
Tepair poor con-
xt in ECM con-
lector.
leplace the ECM.
:Ref.
to
FU(D0HC
lngine Control
nodule.>
'URB0)-47,
;o
to
step
5.
lepair poor con-
act in combination
neter connector.
So
to
step
7.
3epair combina-
:ion meter connec.
:or.
No
30
to step
3.
Repair connection
sf
ECM connector,
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and combi-
nation meter con-
nector
8
Poor contact
in
coupling connect0
Go
to step
6.
Check the follow-
ing and repair
if
necessary.
NOTE:
*
Brokendown
ignition relay.
Blown out fuse
(No.
5).
If
replaced fuse
(No.
5)
blows eas-
ily, check the har-
ness for short
circuit of harness
between fuse
(No.
5)
and ignition
relay connector.
Open or short
circuit in harness
between fuse (No.
5)
and battery ter-
minal
Open circuit in
harness between
fuse (No.
5)
and
ignition relay con-
nector
Poor contact in
ignition relay con-
nector
Poor contact in
ignition switch cor
nector
Replace the lamp
bulb.
EN(D0HC TURBO)-55
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