Mitsubishi 3000gt 1999 - Page 54

cHAsSlS
ELECTRICAL
-
lgnition
switch
and tmmobirizer
system 54-4
Inspection
Procedure
4
Engine
does
not
start
(turns
over
but does not
ignite)
Probable
cause
lf
the fuel injectors
are
not
operating,
there might
be
a
problem
with
the Mpl
system
in
addition
to a malfunction
of
the immobilizer
svstem.
It is normal
for
this to occur
if
an attempt is mad-e
to
start the
engine using
a key
that has not
been
properly
registered.
.
Malfunction
of
MPI system
.
Malfunction
of immobilizer
system
itn
I
Check trouble
symptoms.
i]+fneptace
tne irroOirirJeCtf
-
l
ls
a normal
diagnosis
code output from
the immobilizer-ECU?
To
diagnosis
code
classification table
(Refer
to P.54-2.)
ls
a
normal
diagnosis code output
from
the
engine-ECU?
Refer to
GROUP 13
-
Troubleshooting.
Inspection
Procedure
5
lmmobilizer-ECU power
circuit
and earth
circuit
check
Measure
at immobilizer-ECU
connector
c-90.
o
Disconnect
the
connector and
measure
at the harness
side.
o
lgnition
switch: ON
(1)
Voltage
between terminal
No. 7
and
body earth
OK:
System voltage
(2)
Continuity
between
terminal No.
3
and
body earth
OK: Continuity
Check the following
connectors.
c-21
(LHD),
C-60
(RHD),
C-eo
Checkthe harness
between
the immobi-
lizer-ECU
and the
engine control relay,
and
repair
if necessary.
Checkthe harness
between the immobi-
lizer-ECU
andthe
bodyearth,
and
repair
rr necessary.
(.I,