Symptoms

Suspected

Faulty

Components

Repair Procedure

Refrigerant Pressures
Abnormal

1. Air-

conditioning
high pressure
over 3.14 MPa
(455.4 psi).

2. Air-

conditioning
low pressure
lower than
0.196 MPa
(28.4 psi).

1. Discharge the

excessive
emission of
refrigerant.

2. Repair the

vehicle cooling
malfunction.

3. Repair the

engine
malfunction.

4. Repair the air-

conditioning
systems
blockage.

5. Repair the air-

conditioning
systems
leakage.

(b)

Confirm the repair completed.

Is the air-conditioning clutch working properly?

Yes

System normal

No

Step 3

Check the compressor fuse.

IF14

IF2

IF1

IF5

IF7

IF3

IF16

IF27

IF25

IF26

IF28

IF30

IF24

IF20

IF19

IF23

IF18

IF21

IF13

IF12

IF15

IF9

IF10

IF8

F17

F22

M

FE08-5105b

(a)

Check the compressor fuse IF7.

Fuse Rating: 10 A

Is the fuse blown?

No

Go to step 5

Yes

Step 4

Repair the compressor clutch power supply circuit.

Heating, Ventilation and A/C System

Automatic Air-conditioning

8-27

(a)

Repair compressor clutch power supply circuit short to
ground.

Is the air-conditioning clutch working properly?

Yes

System normal

No

Step 5

Measure the compressor clutch power supply voltage.

1

Compressor Harness Connector EN06

FE08-5106b

(a)

Start the engine, press the air-conditioning control switch (A /
C switch), and measure the compressor clutch terminal
EN06-1 voltage.

Standard Voltage: 11-14 V

Is the voltage specified value?

Yes

Replace the compressor clutch.

No

Step 6

Measure the I/P fuse block terminal C02-3 voltage.

FE08-5112b

1

2

4

5

6

7

3

8

I/P Fuse Block Harness Connector C02

(a)

Measure the I/P fuse block terminal C02-3 voltage.

Standard Voltage: 11-14 V

Is the voltage specified value?

No

Repair the main relay circuit malfunction.
Refer to 

2.2.7.37

 

DTC P0560 P0562 P0563

.

Yes

Step 7

Test the I/P fuse block terminal C01-37 working conditions.

8-28

Automatic Air-conditioning

Heating, Ventilation and A/C System

FE08-5111b

1 2 3 4 5 6 7 8 9

11

10

16 17 18

19

20 21 22 

24 

23 

25  26  27  28  29 30  31 

32 33 34 35 36 37 38 39 40 41 42  43 44  45 46 

15

14

13

12

I/P Fuse Block Harness Connector C01

(a)

Start the engine.

(b)

Connect one end of a test lamp to the battery negative
terminal, the other to the I/P fuse block terminal C01-37.

Is the test lamp lit?

No

Replace the I/P fuse block.

Yes

Step 8

Test the ECM terminal EN01-60 working status.

1

3

5

7

8

6

4

2

9

10

11

12

13

23

24

25

26

27

28

29

30

37

51

52

53

54

55

56

57

58

59

60

61

62

63

64

38

39

40

41

42

43

44

45

46

47

48

49

50

31

32

33

34

35

36

14

15

16

17

18

19

20

21

22

1 2 3 4 5 6 7 8 9

11

10

16 17 18

19

20 21 22 

24 

23 

25  26  27  28  29 30  31 

32 33 34 35 36 37 38 39 40 41 42  43 44  45 46 

15

14

13

12

I/P Fuse Block Harness Connector C01

Engine Control Module Harness Connector EN01

FE08-5108b

(a)

Start the engine.

(b)

Connect one end of a test lamp to the battery negative
terminal, the other to ECM connector EN01-60.

Is the test lamp lit?

No

Repair the open circuit between ECM terminal
EN01-60 and the I/P fuse block terminal
C01-37.

Yes

Step 9

Check the ECM circuit.

(a)

Check the ECM power supply circuit and ground circuit.

(b)

Confirm that ECM power supply circuit and ground circuit are
normal.

Is the air-conditioning clutch working properly?

Heating, Ventilation and A/C System

Automatic Air-conditioning

8-29

Yes

System normal

No

Step 10

Replace the ECM.

(a)

Replace the ECM. Refer to 

2.2.8.8

 

Engine Control Module

Replacement

.

Is the air-conditioning clutch working properly?

Yes

System normal

No

Step 11

Test the air pressure switch terminals CA22-1 working status.

2

3

1

4

A/C Pressure Switch Harness Connector CA22

FE08-5107b

(a)

Start the engine, press the air-conditioning control switch (A /
C switch).

(b)

Connect one end of a test lamp to the battery positive
terminal, the other to the air pressure switch terminal CA22-1.

Is the test lamp lit?

Yes

Replace the of air-conditioning pressure
switch.

No

Step 12

Test the air-conditioning control module terminal IP40-32 working status.

16
32

15
31

14
30

13
29

12
28

11
27

10
26

9

25

8

24

7

23

6

22

5

21

4

20

3

19

2

18

1

17

2

3

1

4

A/C Pressure Switch Harness Connector CA22

A/C Control Module Harness Connector IP40

FE08-5109b

(a)

Start the engine, press the air-conditioning control switch (A /
C switch).

(b)

Connect one end of a test lamp to the battery positive
terminal, the other to the air control module terminal IP40-32.

Is the test lamp lit?

Yes

Repair the open circuit between air-
conditioning control module terminal IP40-32
and air-conditioning Pressure Switch
Terminal CA22-1.

No

Step 13

Check the air-conditioning control module circuit.

8-30

Automatic Air-conditioning

Heating, Ventilation and A/C System