Mitsubishi 1989-1993 GALANT Service Manual page 1144

SERVICE BRAKES
the ignition key in the
position, remove the ECU connector
Does the voltage between ECU harness No r Broken wire between ABS .
connector terminal No.25 and ground
indicate battery voltage?
Yes
(Remove valve relay and check.
Yes
Install the valve relay and,
ignition k e y i n t h e " O N "
remove the HU connector and
Does voltage between the HU harness
I
Yes
Is there continuity between HU harness
connector terminal No.9 and ground?
I
Is there continuity between terminals No.
8 and No. 9 on the HU side connector?
I
Yes
NOTE
When inspecting the parts marked with
warning light and ECU.
Valve relay malfunction
tween ABS warning light
and HU
tween HU and ground
N o
Connector connection mal-
function
l
, take care to the diode polarity. (Refer to the circuit diagram on P.35-21.)
TSB Revision
Repair harness.
Replace ABS ECU.
Replace valve relay.
Repair harness.
I
Repair harness.