Mitsubishi 3000GT Service Manual page 840

SERVICE BRAKES - Anti-lock Braking System Troubleshooting
connector terminal No. 25 and ground
the ignition key is in the "ON" position?
Remove valve relay and check.
Yes
Install the valve relay, remove the HU
connector and check.
Does positive .voltage between the HU
harness connector termrnal No. 8 and
ground rndrcate battery positive voltage
while the ignition key is in the "ON" posi-
Yes
Is there continuity between HU harness
connector terminal No. 9 and ground?
connector terminals No. 8 and No. 9?
Yes
ABS ECU malfun
Broken harness wire between
HU and ground
Revision
TSB
Repair harness.
Replace ABS ECU.
Replace valve relay.
Repair harness.
Replace HU.
Replace connector.
I