Mitsubishi 3000gt 1997 - SRS WARNING LAMP AND ECU SYSTEM FAULTS; SRS Warning Lamp Drive Circuit System; SRS-ECU Memory and A;D Converter System; Air Bag Module Squib Ignition Drive Circuit Systems

SRS
-
Troubleshooting
528-11
|&
o
o
3
Code
No.43
SRS warning
lamp
drive
circuit
system
llgtp
does
not
switch
off.)
Probable
cause
This
diagnosis
code is
output
when
a short
to
earth occurs
in
the
harness
between
the.lamp
and the-SFS-ECU
white
SRS-ECU
is
monitoring
tn"
SRS;a-r,;!l;;;"
and the
lamo
is
ON.
.
Malfunction
of wiring
harnesses
or conneclors
.
Malfunction
of
SRS:ECU
o
Malfunction
of
combination
meter
SRS warning
lamp
inspection
.
lgnition
switch:
ON
o
Does
lamp
switch
off
when
SRS-ECU
connector
D-51
is
drsconnected?
Check
the
lotlowing
connectors:
C-l3,
D-05
and D51
Fleplace
the
SRS-ECU.
Check
the
harness
wire
between
the
SRS-ECU
and
combination
meter,
and repair
if necessary.
cuit
system
|!igo1991osi9.9odeisoutputWhenaShortoccursintffi
mafuncrron
ot the
output
transistor
inside
the
sRS-Ecu
is
ddtected
while
the
sRS_
ECU
is
monitoring
the
SRS warning
lamp
drive
ciicLrrt.
Probable
cause
.
Maltunction
of
wiring
harnesses
or
connectors
o
Malfunction
of
SRS-ECU
--
|tn;t.;ti;-erszE-iT.j''..,|q|l|Pu||vcu||Uu|t5y>tEl||.ru
Code
No.45.
SRS-ECU
non-votatite
memory (EEPROM)
and
A/D
converter
system
Probable
cause
Tfris
diagno_sis_code
is output
if
there
is
a malfunction
in the
sRS-ECU
non-volatile
memory (EEPROM)
and
A,/D
converter.
o
Malfunction
of
SRS-ECL
i
Replace
the
SRS-ECU.
tl
Gode
No.51
or
52 Driver's
side
air
bag
module
(squib
ignition
drive
circuit)
system
Probable
cause
I nrs
oragnosrs
code is
output
if
a
short
(No.51)
or
an open
circuit
(No.52)
is
detected
in
the
circuit
for
the
driver'3
sear.
.
Malfunction
of
SRS-ECU
Replace
the
SRS-ECU.
Code
No.54
or
55 Front
passenger's
side
air
bag
module
(squib
ignition
drive
circuit)
syslem
Probable
cause
This
diagnosis
code
is output
if a
short
(No.sa)
or
an
open
circuit (No.55)
is
detected
in
the
circuit
for
the
passenoer's
seat.
.
Malfunction
of
SRS-ECL
Replace
the
SRS-ECU.