Mitsubishi 3000gt 1997 - ABS WHEEL SPEED SENSOR AND G-SENSOR MALFUNCTIONS; Wheel Speed Sensor Abnormal Output Signal (Code 15); Power Supply System Issues (Code 16)

35-8
SERVICE
BRAKES
-
ABS
Troubleshooting
Code
No.15
Wheel
speed sensor
(Abnormal
output
signal)
Probable
cause
A wheel
speed
sensor
outputs an
abnormal signal
(other
than an
open or short-
circuit).
.
lmproper
installation of
wheel speed sensor
o
Malfunction of
wheel
speed
sensor
o
Malfunction
of
rotor
o
Malfunction
of wheel bearing
.
Malfunction
of wiring harness
or connector
.
Malfunction of
ABS-ECU
Wheel speed
sensor
installation
in-
soeclron.
Replace the wheel speed
sensor.
Wheel speed
sensor
inspection.
Wheel
speed sensor
output
voltage in-
spectron.
Check the
harness
wire between
each
wheel speed sensor
and
ABS-ECU,
and
repair
if necessary.
Replace the rotor.
Gode
No.l6
Power supply
system
Probable cause
The voltaqe
of the
ABS-ECU
power
supply drops
lower or
rises higher
than the
specified
value.
lf the voltage
relurns
to the specified
value, this code
is
no longer
output.
.
Malfunction
of wiring harness
or connector.
.
Malfunction of ABS-ECU
Caution
lf battery
voltage
drops
or
rises during
inspection,
this code
will be output
as well.
lf the
voltage
returns
to standard
value,
this code
is no
longer output.
Before
carrying
out
the
following
inspection,
check
the
battery
level,
and
refill it if necessary.
Check
the harness
wire between
the
ignition-switch and the
ABS-ECU,
and
reparr rl necessary.
Check
the
following connectors.
C-25,
C-59, C-66
and C-78
Measure
at
the ABS-ECU
connector
E-10.
o
Disconnect
the connector
and
mea-
sure
from the
harness side.
r
Start
the engine.
Voltage
between
83
-
Body earth
OK:
System
voltage
Check
trouble
symptoms.
tI)