Mitsubishi 3000GT 1991 Service Manual page 756

SERVICE BRAKES -
I
[Explanation]
This is the symptom when the ABS ECU does not
power up due to broken ECU power circuit, etc.,
when the fail safe function operates and isolates the
system or when the warning light drive circuit is
short circuited.
30
7a
Y
IGNITION
25
ECU
. . .
TSB hevIsIon
[Hint]
Check the diagnosis output and if there is no output
voltage or if the MUT and ABS ECU cannot
communicate, there is a good possibility that power
is not flowing to the ECU.
Caution
If the trouble code is output, the system can
l
be in the fail safe mode. In such a case, erase
the trouble code and then restart the engine
to check if the system is currently in a fault
condition.
I
I
Replace ECU.
.
Replace HU or replace
valve relay.
I