Fan Control Relay Continuity Check; Cooling Fan Motor Check - Mitsubishi Lancer Evolution IX 2006 Workshop Manual

Fan controller
MB991222
Circuit tester
Cooling fan motor
connector:
Harness side
5. Insert special tool probe (MB991222) at the back
of the cooling fan motor connector.
6. Connect the special tool to the circuit tester.
7. Ensure that the A/C switch is off, and start the
engine and run it at idle.
8. Measure the voltage between the cooling fan
motor connector terminals.
Standard value: 1V or less
9. Turn the A/C switch to the "ON" position.
WARNING
Stay clear of the fan when the fan starts run-
ning.
10. Measure the voltage between the cooling fan
motor connector terminals while the fan is
running. The voltage should repeat the values 1)
and 2) below.
Standard value:
1) 8.2 ± 2.6 V
2) Battery positive voltage ± 2.6 V
11.If the voltage does not repeatedly change as
indicated, replace the fan controller.
12.Install the centre under cover (Refer to GROUP
51, Front Bumper P.51-2).
ENGINE COOLING
ON-VEHICLE SERVICE
FAN CONTROL RELAY CONTINUITY
CHECK
AC210667 AB
Battery
voltage
Not applied 4 − 2
• Connect
• Connect

COOLING FAN MOTOR CHECK

1. Remove the centre under cover (Refer to GROUP
51, Front Bumper P.51-2).
Battery
2
1 3
4
Terminal No.to
be connected to
tester
4 − 2
terminal
No.1 and
battery
(+)
terminal.
terminal
No.3 and
battery
(−)
terminal.
14-17
M1141006200354
4
2
3 1
AC210672 AB
Continuity test
results
Open circuit
Less than 2 ohms
M1141007100134