Mitsubishi Outlander (2003+). Manual — part 570

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-95

DATA LIST REFERENCE TABLE

M1554005100170

Item No. Check items

Inspection conditions

Normal condition

11

Interior temperature sensor Turn the ignition switch to

the ON position.

Room temperature is the same as
MUT-II/III displayed temperature.

13

Outside thermo sensor

Turn the ignition switch to
the ON position.

Outside temperature is the same as
MUT-II/III displayed temperature.

15

Heater water temperature
sensor

Turn the ignition switch to
the ON position.

Heater core wall surface
temperature is the same as
MUT-II/III displayed temperature.

21

Air thermo sensor

Turn the ignition switch to
the ON position.

Evaporator outlet temperate is the
same as MUT-II/III displayed
temperature

25

Photo sensor

•

Turn the ignition switch to
the ON position.

•

Change the volume of
insolation.

The volume of insolation takes
inverse proportion with the MUT-II/III
displayed voltage.

31

Air mixing damper control
motor and potentiometer

•

Turn the ignition switch to
the ON position.

•

Door position: MAX HOT

Opening angle: approximately
100%

•

Turn the ignition switch to
the ON position.

•

Door position: MAX
COOL

Opening angle: approximately 0%

32

Mode selection damper
control motor and
potentiometer

•

Turn the ignition switch to
the ON position.

•

Damper position: FACE

Opening angle: approximately 0%

•

Turn the ignition switch to
the ON position.

•

Damper position: FOOT

Opening angle: approximately 60%

•

Turn the ignition switch to
the ON position.

•

Damper position:
FOOT/DEF

Opening angle: approximately 80%

•

Turn the ignition switch to
the ON position.

•

Damper position: DEF

Opening angle: approximately
100%

42

A/C pressure sensor

Turn the ignition switch to
the ON position.

A/C refrigerant pressure is the same
as MUT-II/III displayed pressure.

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-96

ACTUATOR TEST TABLE

M1554005200166

CHECK AT ENGINE-A/T ECU TERMINALS

M1554005400182

<4G63>

Item No.

Check items

Drive content

01

Blower motor

Stop

02

Low speed

03

Middle speed

04

High speed

05

Air mixing damper control motor

Open angle: Approximately 0% (MAX COOL)

06

Opening angle: approximately 50%

07

Open angle: Approximately 100% (MAX HOT)

08

Mode selection damper control motor FACE

09

FOOT

10

DEF

11

Compressor output

OFF

12

ON

13

outside/inside air selection damper
control motor

Outside air

14

Inside air

38

Idle-up

OFF (A/C high pressure)

39

ON (A/C low pressure)

22

9

16

15

2

14

1

3

19

6

18

17

4 5

20

7

21

8

25

12

23

10

24

11

26

13

JAE-E

34

42

39

31

41

40

3233

37

45

44

43

3536

46

38

JAE-E

79

90

84

8283

72

71

73

JAE-E

87

76

8586

7475

89

88

7778

92

91

8081

AC301466

<C-134>

<C-135>

<C-137>

AB

Terminal
No.

Check items

Check conditions

Normal conditions

8

Output to A/C compressor

A/C compressor relay: OFF

System voltage

A/C compressor relay: ON

0 V

21

Output to fan controller

Air conditioner switch: OFF

4.9

−

5.1 V

Air conditioner switch: ON

0 V

24

Input from A/C-ECU (A/C1) When the A/C is in operation (When the air

thermo sensor detects 3

°

C or more).

System voltage

42

Input from A/C pressure
sensor

2.6MPa

3.9 V

45

Input from A/C-ECU (A/C2) When the A/C is under low load

System voltage

81

A/C pressure sensor power
supply

Always

4.9

−

5.1 V

92

A/C pressure sensor earth

Always

0 V

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-97

<4G69>

CHECK AT A/C-ECU TERMINALS

M1554005400159

AC309402

<C-139>

<C-141>

<C-142>

AB

Terminal
No.

Check items

Check conditions

Normal conditions

8

Output to A/C compressor

A/C compressor relay: OFF

System voltage

A/C compressor relay: ON

0 V

17

Output to fan controller

Air conditioner switch: OFF

4.9

−

5.1 V

Air conditioner switch: ON

0 V

69

Input from A/C-ECU (A/C2) When the A/C is under low load

System voltage

78

Input from A/C-ECU (A/C1) When the A/C is in operation (When the air

thermo sensor detects 3

°

C or more).

System voltage

96

A/C pressure sensor earth

Always

0 V

97

A/C pressure sensor power
supply

Always

4.9

−

5.1 V

118

Input from A/C pressure
sensor

2.6MPa

3.9 V

8

2

1

5

3 4

6 7

9 10

20

19

18

17

16

15

14

13

12

11

32

24

29

21

31

30

2223

27

35

33

25

34

26

36

28

AC300196

<C-27>

<C-26>

AB

Terminal
No.

Check items

Check conditions

Normal
conditions

1

Interior temperature sensor

Sensor temperature: 25

°

C (4k

Ω

)

2.1

−

2.7V

2

Output to blower pulse controller

When the blower is operating.

0

−

2.5V (Effective

alternating voltage)

3

Back-up power supply

Always

System voltage

4

Input from heater water
temperature sensor

Sensor temperature: 25

°

C (4k

Ω

)

2.1

−

2.7V

5

Input from air mixing damper
control motor potentiometer

When the damper flaps is moving to
the MAX HOT position.

4.1

−

4.6 V

6

Input from mode selection damper
control motor potentiometer

When the damper is moved to the
DEF position.

4.1

−

4.6 V

7

Input from the outside thermo
sensor

Sensor temperature: 25

°

C (4k

Ω

)

2.1

−

2.7 V

TROUBLESHOOTING

AUTOMATIC AIR CONDITIONER

55B-98

8

Input from the air thermo sensor

Sensor temperature: 25

°

C (4k

Ω

)

2.1

−

2.7 V

9

Photo sensor (-)

Brightness is 0 lux

4.9

−

5.1 V

Brightness is 100000 lux or more

Approximately 0 V

10

Potentiometer power supply

Always

5 V

11

Input from the A/C pressure sensor 2.6 Mpa

3.9 V

12

−

15

-

-

-

16

Rear defogger

When the rear defogger is operating. 2.0 V or less
When the rear defogger is stopped

System voltage

17

Diagnosis set

Ignition switch: ON

A voltmeter needle
fluctuates between
0 and 12 V.

18

Input from diagnosis

Ignition switch: ON

Approximately 5 V

19

Photo sensor (+)

Always

0 V

20

Sensors and potentiometers earth

Always

0 V

21

Air outlet changeover damper
motor (FACE)

When the damper is moved to the
FACE position.

10 V

When the damper is moved to the
DEF position.

Faint voltage (0.5
V)

22

Air mix damper motor (MAX COOL) When the damper flaps is moving to

the MAX COOL position.

10 V

When the damper flaps is moving to
the MAX HOT position.

Faint voltage (0.5
V)

23

outside/inside air selection damper
control motor (outside)

When the damper is moved to the
inside air recirculation position

10 V (When the
motor is stopped)

When the damper is moved to the
outside air inside air intake position

2.0 or less

24

Mode selection damper control
motor and potentiometer (DEF)

When the damper is moved to the
FACE position.

Faint voltage (0.5
V)

When the damper is moved to the
DEF position.

10 V

25

Air mixing damper control motor
and potentiometer (MAX HOT)

When the damper flaps is moving to
the MAX COOL position.

Faint voltage (0.5
V)

When the damper flaps is moving to
the MAX HOT position.

10 V

26

outside/inside air selection damper
control motor (inside)

When the damper is moved to the
inside air recirculation position

2.0 V or less

When the damper is moved to the
outside air inside air intake position

10 V (When the
motor is stopped)

27

Earth

Always

Continuity exists.

28

IG2 power supply

Ignition switch: ON

System voltage

29

Illumination earth

Always

Continuity exists.

30

ILL power supply

Lighting switch: ON

System voltage

31

-

-

-

Terminal
No.

Check items

Check conditions

Normal
conditions