Mitsubishi 3000gt 1997 - ABS SOLENOID VALVE CIRCUIT DIAGNOSIS

SERVICE
BRAKES
-
ABS
Troubteshooting
35-11
Code No.41,
42,
43, 44,
45, 46,
47,48
Solenoid valve
Probable
cause
The ABS-ECU
always monitors
the solenoid
valve
drive circuit. lt
determines
that
there
is
an open or
short-circuit
in the
solenoid
coil or in
a
harness:
when
no
currenl
flows in
the solenoid
even
though the ABS-ECU
turns on it,
and vice
versa.
a
a
a
Malfunction
of harness
or
connector
Malfunction
of hvdraulic
unit
Malfunction
of Ai3S-ECU
Solenoid
valve insDection
(Refer
to P.35-21.)
Measure
at hydraulic
unil
connector A-
78
and ABS-ECU
connectors
E-10.
r
Disconnect
the
connector
and
measure
at the harness
side.
.
Continuity
between
the following
terminals
OK:
Conlinuitv
HU
side
ABS-ECU
side
HU
side
ABS-ECU
side
1234
tttl
30 31 78
79
5678
lttl
58
59 50
51
Check the
harness
between
the hv-
draulic
unit and ABS-ECU,
and repdir
rs necessary.
Check the
following
connectors.
A-78.
C-25.
C-59 and E-10
Replace
the ABS-ECU.