Mitsubishi 1989-1993 GALANT Service Manual page 1158

SERVICE BRAKES
Connector terminal arrangement for
troubleshooting
Terminal arrangement shown on the
special tool connector
Caution
1. When carrying out inspection of the ABS-ECU ter-
minal voltage and resistance, the special tool
2. Because the ABS-ECU connector terminal arrange-
ment for troubleshooting is different from the termi-
nal arrangement shown on the special tool connec-
tor, when using the special tool for inspecting, take
the readings from the terminal numbers of the spe-
cial tool.
Example
ABS-ECU
number for troubleshooting
CHECK, USING ON-BOARD DIAGNOSTIC
(1) With the ignition switch OFF, connect the adapter harness
and scan tool, turn the ignition ON and select the ABS sys-
tem. (The ABS warning light lights up, it goes into the scan
tool mode. In the scan tool mode, ABS does not func-
tion.)
If it does not go into the scan tool mode, check the ECU
power
circuit
link connectors.
(2) Read the on-board diagnostic output codes from the ECU
memory.
(3) Cancel the diagnostic trouble codes once from memory.
(Refer to P.35-38.)
If the memory can not be canceled, the ECU is currently
detecting the trouble. If'it can be cleared, the trouble is
either temporary or appears only when driving.
(4) When the diagnostic trouble codes are cleared, or when
the ABS system goes into fail safe during another test drive
and diagnostic trouble codes are outputed, check accord-
ing to diagnostic trouble code check charts (E-l -E-7).
TSB Revision
connector terminal Terminal number shown on
the special tool connector
18
and the harness between the ECU and data
1