Mitsubishi Eclipse Workshop Manual page 169

FUEL -
On-vehicle Inspection
of
MPI
Components
13-101
o
a
ANTI-LOCK BRAKE SIGNAL <4WD>
o
o
OPERATION
.
The anti-lock brake signal is
input
to
the engine control unit from the anti-lock
brake q/stem
(ABS)
control unit
as a signal to
indicate whether or not the motor relay is activated.
Based
on this signdt.
ni
engine
control unit
controls
the
idle-speed control servo to
secure effective anti-lock braking.
.
When the motor relay is activated, the ABS control unit turns ON the power transistor, shori-circuiting
the terminal
to
earth. This causes
the anti-lock
brake signal
to go from high
to
low.
Engine
control unit
connector
@
Mitrubishl
llotor
Gorporrtion
AFr.
tggl
r"l
"-':-'ii' ," su:;il-
lrjEtrl
t-t_JHL,l
n__-|'Hl_rl
ffiffiffi
o
o
o
I
ABS
control
unrl
@ABS
control
unit
equipment side connector
HARNESS INSPECTION
Check
for an open-circuit or a
short-
circuh to ground, between the
ABS
control unit and the engine control
unit.
.
ABS
control unit
connector:
Disconnected
.
Engine
control unit
connector:
Disconnected
Repairthe
hamess
(@-E!)
PWUE9010