Mitsubishi LANCER EVOLUTION-IV 1998, Workshop Manual, Page: 374 / 526

REAR AXLE –
Troubleshooting <AYC>
27-8
<Vehicles without ABS>
OK
Check the wheel bearing.
NG
Check and repair the harness between
speed sensor and AYC-ECU.
NG
Replace AYC-ECU.
OK
Check the trouble symptom.
OK
Check the following connector:
B-95
NG
Repair
OK
Check the trouble symptom.
OK
Check the following connectors:
B-95, B-52, B-17, A-26, A-50, D-04,
D-14, D-19
NG
Repair
OK
Measure at B-95 AYC-ECU connector.
D
Disconnect the connector and
measure at the harness side.
D
Resistance across 7-20 (front, LH),
6-19 (front, RH), 9-22 (rear, LH),
and 8-21 (rear, RH).
OK: 1.4 – 1.8 k
Ω
.
NG
Check the speed sensor.
Check the installation of speed sensor.
NG
Repair
OK
Check the speed sensor output volt-
age. (Refer to P.27-31.)
NG
Check the speed sensor and rotor.
NG
Replace
NG
Replace