Mitsubishi 1989-1993 GALANT Service Manual page 1163

SERVICE BRAKES
W ith the ignition key in the "ON"
position, remove the ECU connector
check. ,
Does the voltage between ECU harness
connector terminal No.25 and ground
indicate battery voltage?
Yes
Check ABS valve relay.
Remove valve relay and check.
Is valve relay normal
Does voltage between the HU harness
Yes
Is there continuity between HU harness
connector terminal No.9 and ground?
Is there continuity between terminals No.
8 and No. 9 on the HU side connector?
Yes
NOTE
When inspecting the parts marked with
I
No
warning light and ECU
No
tween ABS warning light
and HU
tween HU and ground
function
l
, take care to the diode polarity. (Refer to the circuit diagram on R.S5-39.)
TSB Revision
35-41
Replace ABS ECU.
Replace valve relay.
Repair harness.
Repair harness.
HU.