Mitsubishi 3000GT - Instrument Panel and Floor Console; Cigarette Lighter Circuit; Defogger Circuit; Dome Light, Foot Light and Ignition Key Cylinder Illumination Light

cHASSls
ELECTRICAL
-
tgnition
switch
and tmmobitizer
system 54-4
Inspection
Procedure
4
Engine
does
not
start
(turns
over
but does
not ignite)
Probable
cause
It the.
fuel injectors
are not
operating,
there might
be a
problem
with the Mpl
system
in
addition to a malfunction
of the immobilizer
system.
It is normal
for this
to occur
if
an attempt is
made to
start the
engine
using a key
that has
not
been
properly
registered.
.
Malfunction
of MPI
system
o
Malfunction
of immobilizer
system
Checkthe system voltage
during
crank-
ing.
OK:
8V
or
more
ls
a
normal
diagnosis
code outputlrom
the immobilizer-ECU?
To
diagnosis
code
classilication table
(Refer
to P.il-2.1
ls a normal
diagnosis
code output
trom
the engine-Eou?
Refer to
GHOUP 13
-
Troubleshooting.
To inspection
prccedure
for
when
there
is no ignition
(Refer
to
GROUP 13
-
Troubleshooting.)
Checkthe
hamess
between the immobi-
lizer-EoU
power
circuit
and the
earth
circuit.
(Refer
to
inspection
lnspection
Procedure
5
lmmobillzer-ECu
power
circuit
and
earth circuit
check
Measure
at
immobilizer-ECU
conn€ctor
c-90.
.
Disconnect
the
@nnector
and
measure
at the hamess
side.
.
lgnition
switch: ON
(1)
Voltage
between
terminal No.
7 and
body earth
OK: System voltage
(2)
Contlnuity
between terminal
No.
3
and body
earth
OK:
Continuity
Check the followlng
connectorc.
c-21
(LHD),
C-60
(RHD),
C-90
Check the hamess
botyseen thc immobi-
lizer-EoU
and lhe engine
control
relay,
and repair
if necessary.
Checkthe hamoss
b€tweenthe immobi-
lizer-ECU
and the body
earth, and
repair
if necessary.