Mitsubishi Outlander (2003+). Manual - part 127

ON-VEHICLE SERVICE

ENGINE COOLING

14-19

3. Connect the fan controller connector, and 

disconnect the condenser fan motor connector.

4. Ensure that the A/C switch is off, and start the 

engine and run it at idle.

5. Measure the voltage between the fan 

controller-side connector terminals.

Standard value: 1V or less

WARNING

Stay clear of the fan when the fan starts 
running.

6. Turn the A/C switch to the "ON" position.
7. Measure the voltage between the fan 

controller-side connector terminals while the fan is 
running. The voltage should repeat the values 
below.

Standard value:

8.2 

±

 2.6 V

System voltage 

±

 2.6 V

8. If the voltage does not repeatedly change as 

indicated, replace the fan controller.

FAN CONTROL RELAY CONTINUITY 
CHECK

M1141006200332

AC103010

2

1

Fan controller

AD

Battery 
voltage

Terminal No.to 
be connected to 
tester

Continuity test 
results

Not applied 4 

−

 2

Open circuit

Connect 
terminal 
No.1 and 
battery (

−

) 

terminal.
Connect 
terminal 
No.3 and 
battery (+) 
terminal.

4 

−

 2

Less than 2 ohms

AC308060

1

3

4

2

3

4

1

2

AC309492

Fan control relay

AB

THERMOSTAT

ENGINE COOLING

14-20

RADIATOR FAN MOTOR CHECK

M1141007100112

1. Remove the radiator fan motor connector.
2. Check to see that the fan motor of the radiator 

turns when applying battery power between the 
connector terminals of the radiator fan motor. Also 
check to see that there is no abnormal sound 
coming from the radiator fan motor at this time.

3. If the radiator fan motor is defective, replace it.

THERMOSTAT

REMOVAL AND INSTALLATION

M1141002400516

<4G63>

AC103006

1

2

Radiator
fan motor

AE

Pre-removal and Post-installation Operation

•

Engine Coolant Draining and Refilling (Refer to 

P.14-17

).

•

Air Cleaner Removal and Installation (Refer to GROUP 

15, Air Cleaner 

P.15-3

<4G63>, 

P.15-4

<4G69>).

•

Battery Removal and Installation

AC301429

1

2

3

4

5

13 ± 2 N·m

AB

Removal steps

1.

Engine coolant temperature gauge 
unit connector

2.

Engine coolant temperature sensor 
connector

<<A>>

>B<<

3.

Radiator lower hose connection

4.

Water inlet fitting

>>A<<

5.

Thermostat

Removal steps (Continued)

THERMOSTAT

ENGINE COOLING

14-21

<4G69>

REMOVAL SERVICE POINT

<<A>> RADIATOR LOWER HOSE 
DISCONNECTION

Make mating marks on the radiator hose and the 
hose clamp. Disconnect the radiator hose.

INSTALLATION SERVICE POINTS

>>A<< THERMOSTAT INSTALLATION

CAUTION

Make absolutely sure that no oil adheres to the 
rubber ring of the thermostat. Also do not fold or 
scratch the rubber ring during installation.

Install the thermostat so that the jiggle valve is facing 
straight up. Be careful not to fold or scratch the 
rubber ring.

AC309324AB

1

2

3

4

13 ± 2 N·m

5

11 ± 1 N·m

11 ± 1 N·m

2

Removal steps

<<A>> >>B<<

1.

Radiator lower hose connection

2.

Control wiring harness connection

3.

Control wiring harness connection 
bracket

4.

Water inlet fitting

>>A<<

5.

Thermostat

AC200641AC

Mating marks

AC000279

Jiggle valve

Rubber ring

AB

THERMOSTAT

ENGINE COOLING

14-22

>>B<< RADIATOR LOWER HOSE CONNECTION

1. Insert each hose as far as the projection of the 

water inlet fitting.

2. Align the mating marks on the radiator hose and 

hose clamp, and then connect the radiator hose.

INSPECTION

M1141002500472

THERMOSTAT CHECK

1. Immerse the thermostat in water, and heat the 

water while stirring. Check the thermostat valve 
opening temperature.

Standard value:

Valve opening temperature: 82 

±

 1.5

°

C

2. Check that the amount of valve lift is at the 

standard value when the water is at the 
full-opening temperature.
NOTE: Measure the valve height when the 
thermostat is fully closed, and use this 
measurement to compare the valve height when 
the thermostat is fully open.

Standard value:

Full-opening temperature: 95

°

C

Amount of valve lift: 8.5 mm or more

AC200642

Mating marks

Projection

Water inlet fitting

AE

ACX00400AB

ACX00401AC

Valve lift