Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1225

13A-88
From the previous page
OK
Check the following connector: C-126
OK
Check the radiator fan motor drive.
D Disconnect the C-126
engine-ECU connector.
D Ignition switch: ON
OK: Radiator fan motor rotates
at a high speed.
NG
Measure at the C-126 engine-ECU
connector.
D Disconnect the connector to
measure at the harness side.
D Ignition switch: ON
D Voltage between terminal No. 21
and earth
OK: 4.9 - 5.1 V
NG
Check the following connector:
C-136 <R.H. drive vehicles>,
A-13 <L.H. drive vehicles>
OK
Check the harness between the fan
controller and engine-ECU.
D Check for short-circuit of the
output cable.
OK
Replace the radiator fan motor and
fan controller assembly.
MPI -
Troubleshooting
NG
Repair
OK
MUT-II Actuator Test
D No. 21: Fan controller
D Ignition switch: ON
OK: Radiator fan motor rotates.
Replace the engine-ECU.
OK
Check the harness between the
battery and radiator fan control relay.
D Check for damage of the power
cable.
Check the harness between the
radiator fan control relay and fan
controller.
D Check for damage of the output
cable.
Replace the radiator fan motor and
fan controller assembly.
NG
Repair
NG
Repair
OK
NG
NG
OK
NG
OK
Intermittent malfunction (Refer to
GROUP 00 - Points to Note for
Intermittent Malfunctions.)
Repair
Repair