Mitsubishi 3000gt 1997 - ABS WARNING LAMP DIAGNOSIS PROCEDURES; ABS Warning Lamp Not Illuminating; ABS Warning Lamp Remains Illuminated

SERVICE
BRAKES
-
ABS Troubleshooting
35-17
Inspection
Procedure
3
Inspection
Procedure
4
Replace
the ABS
warning
lamp
bulb
Replace
the
combination meter.
NOTE
This trouble
symptom is limited
to cases
where
communication
with
the MUT-II
is
possible
(ABS-ECU
power
supply is
normal)
and the
diagnosis
code is
a
normal
diagnosis
code.
When ignition
key
is turned
to
o'ON"
(engine
stopped),
ABS warning
lamp
does not illuminate.
Probable
cause
lf the lamp
does not illuminate,
the
cause may
be: an open
circuit in the lamp
power
supply circuit,
a_blown lamp
bulb, an open
cirbuit between
the ABS warning
la'mp
and the ABS-ECU.
o
Blown
fuse
.
Burnt out
ABS warning
lamp
bulb
o
Malfunction
of wiring hirness
or connector
Fuse inspection,
Multi-purpose
fuse
Refer
to Inspection
Service Points
for
a Blown Fuse.
Measure
at connector
D-16
.
Disconnect
the
ionnector and mea-
sure at the male
oin.
o
lgnition
switch:
ON
o
Does
the ABS
warning lamp
illuminate
when
terminal
7 is
earthed?
OK: llluminates
Check whether
the
ABS warning
lamp
bulb is burnt
out.
Check the followinq
connectors.
C-68.
C-78.
D-04
ana D-45
Check the harnesses
between the
ABS-ECU
and
connector D-16.
Repair,
if necessary.
Even
after the
engine is
started,
the ABS
warning
lamp
remains
illuminated.
Probable
cause
The cause is
probably
a short-crrcuit in
the ABS warning
lamp illumination
circuit.
a
Malfunction
of combination
meter
Malfunction
of ABS-ECU
Malfunction
of wiring
harness
a
a
Disconnect
connector D-16
and turn
the ignition
switch
to ON.
o
Does the ABS warning
lamp remain
illuminated?
.
Disconnect
ABS-ECU
connector
E-10.
.
lgnition
switch:
ON
o
Does the ABS
warning
lamp
switch off?
Check the harnesses
belween
the combination
meter
and the
ABS-ECU.
Repair. if
necessarv.