Mitsubishi 3000GT Workshop Manual Supplement page 32

35-16
SERVICE BRAKES
-
ABS
Troubleshooting
Inspection procedure
2
Communication with MUT'II is not possible.
(Communication with ABS only is not possible.)
Probable cause
When communication with the
MUT-ll
is not possible, the
cause is probably
an
open
circuit
in the ABS-ECU power circuit or an open circuit in the diagnosis
output
circuit.
o
Blown fuse
o
Malfunction of wiring harness or connector
o
Malfunction ot ABS-ECU
Chqck
tte
followlng connec'tors.
C-27.C-70 and E-10
Measure at
diagnosis connector C-70
and ABS-ECU cbnnector E-10.
o
Disconnect the
connector and
mea'
sure at the harness side.
.
Continuity between
the following
terminals
OK:
Continuity
ABS-ECU
38
68
side
|
|
Diagnosis
connector
7
1
side
Check the harness between the ABS-
ECU
and diagnosis connector, and
re-
pair il
necessary.
Check fhe
lollowing connectotr.
C-25,
C€6
and
C-78
Measure at ABS-ECU
connector
E-l0.
o
Disconnect the connector and mea-
sure at the hamess side.
.
lonition switch ON
o
Vohage between
83
bodyearth
OK:
System voltage Check lhe hamess
between
fuse No.3
inside the iunction block and
ABS-
ECU,
and
repair if necessary.
Measure at ABS-ECU connector E-10.
o
Disconnect the connector and mea-
sure at the hamess side.
.
Continuity between
55,
56
-
body
earth
OK:
Continuity
I
t,
,e